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Full vulnerability report · 2025
CVE-2022-49138High confidence

Bluetooth: hci_event: Ignore multiple conn complete events

Linux · Linux

8.8HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
Distribution package intelligence

Ubuntu vendor package status

Canonical’s release and source-package findings are shown separately from local repository availability.

1 package state
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Ubuntu releaseSource packageVendor stateFixed versionEvidence
Ubuntu 24.04 LTSnoble · standard archivelinux-raspi-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 9 Sept 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
CVE-2022-49138 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitykernel: Bluetooth: hci_event: Ignore multiple conn complete events
198 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • kernel as a component of Red Hat Enterprise Linux 6
  • kernel-abi-whitelists as a component of Red Hat Enterprise Linux 6
  • kernel-bootwrapper as a component of Red Hat Enterprise Linux 6
  • kernel-debug as a component of Red Hat Enterprise Linux 6
  • kernel-debug-devel as a component of Red Hat Enterprise Linux 6
  • kernel-devel as a component of Red Hat Enterprise Linux 6
  • kernel-doc as a component of Red Hat Enterprise Linux 6
  • kernel-firmware as a component of Red Hat Enterprise Linux 6
  • kernel-headers as a component of Red Hat Enterprise Linux 6
  • kernel-kdump as a component of Red Hat Enterprise Linux 6
  • kernel-kdump-devel as a component of Red Hat Enterprise Linux 6
  • kernel.src as a component of Red Hat Enterprise Linux 6
Summary
CVE-2022-49138 is a vulnerability in the Linux kernel's Bluetooth subsystem, specifically within the handling of Host Controller Interface (HCI) events. The issue arises when the kernel receives multiple "connection complete" events for the same Bluetooth connection handle. In such cases, the kernel erroneously registers the same device multiple times, leading to memory corruption. This flaw could potentially be exploited to cause system instability or other unintended behaviors.
Remediation
Affected
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2022-55085

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: Ignore multiple conn complete events When one of the three connection complete events is received multiple times for the same handle, the device is registered multiple times which leads to memory corruptions. Therefore, consequent events for a single connection are ignored. The conn->state can hold different values, therefore HCI_CONN_HANDLE_UNSET is introduced to identify new connections. To make sure the events do not contain this or another invalid handle HCI_CONN_HANDLE_MAX and checks are introduced. Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=215497

What

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: Ignore multiple conn complete events When one of the three connection complete events is received multiple times for the same handle, the device is registered multiple times which leads to memory corruptions. Therefore, consequent events for a single connection are ignored. The conn->state can hold different values, therefore HCI_CONN_HANDLE_UNSET is introduced to identify new connections. To make sure the events do not contain this or another invalid handle HCI_CONN_HANDLE_MAX and checks are introduced. Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=215497

Why

The product dereferences a pointer that it expects to be valid but is NULL.

How

An attacker operating through an adjacent network may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: Ignore multiple conn complete events When one of the three connection complete events is received multiple times for the same handle, the device is registered multiple times which leads to memory corruptions. Therefore, consequent events for a single connection are ignored. The conn->state can hold different values, therefore HCI_CONN_HANDLE_UNSET is introduced to identify new connections. To make sure the events do not contain this or another invalid handle HCI_CONN_HANDLE_MAX and checks are introduced. Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=215497

Why

The product dereferences a pointer that it expects to be valid but is NULL.

How

An attacker operating through an adjacent network may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
an adjacent network → NULL Pointer Dereference → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Adjacent
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-476 ↗

CWE-476: NULL Pointer Dereference. The product dereferences a pointer that it expects to be valid but is NULL.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVAdjacentAttack vector: The attacker must be on an adjacent or logically close network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
UnauthenticatedCWE-476
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

CERT-FR · French · CERTFR-2026-AVI-0326Multiples vulnérabilités dans les produits VMware

d?id=CVE-2022-49069 Référence CVE CVE-2022-49108 https://www.cve.org/CVERecord?id=CVE-2022-49108 Référence CVE CVE-2022-49123 https://www.cve.org/CVERecord?id=CVE-2022-49123 Référence CVE CVE-2022-49124 https://www.cve.org/CVERecord?id=CVE-2022-49124 Référence CVE CVE-2022-49125 https://www.cve.org/CVERecord?id=CVE-2022-49125 Référence CVE CVE-2022-49127 https://www.cve.org/CVERecord?id=CVE-2022-49127 Référence CVE CVE-2022-49133 https://www.cve.org/CVERecord?id=CVE-2022-49133 Référence CVE CVE-2022-49134 https://www.cve.org/CVERecord?id=CVE-2022-49134 Référence CVE CVE-2022-49136 https://www.cve.org/CVERecord?id=CVE-2022-49136 Référence CVE CVE-2022-49138 https://www.cve.org/CVERecord?id=CVE-2022-49138 Référence CVE CVE-2022-49161 https://www.cve.org/CVERecord?id=CVE-2022-49161 Référence CVE CVE-2022-49167 https://www.cve.org/CVERecord?id=CVE-2022-49167 Référence CVE CVE-2022-49172 https://www.cve.org/CVERecord?id=CVE-2022-49172 Référence CVE CVE-2022-49173 https://www.cve.org/CVERecord?id=CVE-2022-49173 Référence CVE CVE-2022-49177 https://www.cve.org/CVERecord?id=CVE-2022-49177 Référence CVE CVE-2022-49178 https://www.cve.org/CVERecord?id=CVE-2022-49178 Référence CVE CVE-2022-49203 https://www.cve.org/CVERecord?id=CVE-2022-49203 Référence CVE CVE-2022-49218 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0316Multiples vulnérabilités dans les produits VMware

d?id=CVE-2022-49069 Référence CVE CVE-2022-49108 https://www.cve.org/CVERecord?id=CVE-2022-49108 Référence CVE CVE-2022-49123 https://www.cve.org/CVERecord?id=CVE-2022-49123 Référence CVE CVE-2022-49124 https://www.cve.org/CVERecord?id=CVE-2022-49124 Référence CVE CVE-2022-49125 https://www.cve.org/CVERecord?id=CVE-2022-49125 Référence CVE CVE-2022-49127 https://www.cve.org/CVERecord?id=CVE-2022-49127 Référence CVE CVE-2022-49133 https://www.cve.org/CVERecord?id=CVE-2022-49133 Référence CVE CVE-2022-49134 https://www.cve.org/CVERecord?id=CVE-2022-49134 Référence CVE CVE-2022-49136 https://www.cve.org/CVERecord?id=CVE-2022-49136 Référence CVE CVE-2022-49138 https://www.cve.org/CVERecord?id=CVE-2022-49138 Référence CVE CVE-2022-49161 https://www.cve.org/CVERecord?id=CVE-2022-49161 Référence CVE CVE-2022-49167 https://www.cve.org/CVERecord?id=CVE-2022-49167 Référence CVE CVE-2022-49172 https://www.cve.org/CVERecord?id=CVE-2022-49172 Référence CVE CVE-2022-49173 https://www.cve.org/CVERecord?id=CVE-2022-49173 Référence CVE CVE-2022-49177 https://www.cve.org/CVERecord?id=CVE-2022-49177 Référence CVE CVE-2022-49178 https://www.cve.org/CVERecord?id=CVE-2022-49178 Référence CVE CVE-2022-49203 https://www.cve.org/CVERecord?id=CVE-2022-49203 Référence CVE CVE-2022-49218 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0979Multiples vulnérabilités dans le noyau Linux de SUSE

e 2025 https://www.suse.com/support/update/announcement/2025/suse-su-20253932-1 Bulletin de sécurité SUSE SUSE-SU-2025:3935-1 du 04 novembre 2025 https://www.suse.com/support/update/announcement/2025/suse-su-20253935-1 Bulletin de sécurité SUSE SUSE-SU-2025:3936-1 du 04 novembre 2025 https://www.suse.com/support/update/announcement/2025/suse-su-20253936-1 Bulletin de sécurité SUSE SUSE-SU-2025:3970-1 du 06 novembre 2025 https://www.suse.com/support/update/announcement/2025/suse-su-20253970-1 Bulletin de sécurité SUSE SUSE-SU-2025:3983-1 du 06 novembre 2025 https://www.suse.com/support/update/announcement/2025/suse-su-20253983-1 Référence CVE CVE-2022-49138 https://www.cve.org/CVERecord?id=CVE-2022-49138 Référence CVE CVE-2022-49770 https://www.cve.org/CVERecord?id=CVE-2022-49770 Référence CVE CVE-2022-50252 https://www.cve.org/CVERecord?id=CVE-2022-50252 Référence CVE CVE-2023-52923 https://www.cve.org/CVERecord?id=CVE-2023-52923 Référence CVE CVE-2023-52927 https://www.cve.org/CVERecord?id=CVE-2023-52927 Référence CVE CVE-2024-26643 https://www.cve.org/CVERecord?id=CVE-2024-26643 Référence CVE CVE-2024-53057 https://www.cve.org/CVERecord?id=CVE-2024-53057 Référence CVE CVE-2024-53164 https://www.cve.org/CVERecord?id=CVE-2024-53164 Référence CVE CVE-2024-57947 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0921Multiples vulnérabilités dans le noyau Linux de SUSE

com/support/update/announcement/2025/suse-su-20253770-1 Bulletin de sécurité SUSE SUSE-SU-2025:3771-1 du 24 octobre 2025 https://www.suse.com/support/update/announcement/2025/suse-su-20253771-1 Bulletin de sécurité SUSE SUSE-SU-2025:3772-1 du 24 octobre 2025 https://www.suse.com/support/update/announcement/2025/suse-su-20253772-1 Référence CVE CVE-2022-2602 https://www.cve.org/CVERecord?id=CVE-2022-2602 Référence CVE CVE-2022-2978 https://www.cve.org/CVERecord?id=CVE-2022-2978 Référence CVE CVE-2022-36280 https://www.cve.org/CVERecord?id=CVE-2022-36280 Référence CVE CVE-2022-43945 https://www.cve.org/CVERecord?id=CVE-2022-43945 Référence CVE CVE-2022-49138 https://www.cve.org/CVERecord?id=CVE-2022-49138 Référence CVE CVE-2022-49980 https://www.cve.org/CVERecord?id=CVE-2022-49980 Référence CVE CVE-2022-50233 https://www.cve.org/CVERecord?id=CVE-2022-50233 Référence CVE CVE-2022-50234 https://www.cve.org/CVERecord?id=CVE-2022-50234 Référence CVE CVE-2022-50235 https://www.cve.org/CVERecord?id=CVE-2022-50235 Référence CVE CVE-2022-50239 https://www.cve.org/CVERecord?id=CVE-2022-50239 Référence CVE CVE-2022-50241 https://www.cve.org/CVERecord?id=CVE-2022-50241 Référence CVE CVE-2022-50246 https://www.cve.org/CVERecord?id=CVE-2022-50246 Référence CVE CVE-2022-50247 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0895Multiples vulnérabilités dans le noyau Linux de SUSE

SE SUSE-SU-2025:03615-1 du 16 octobre 2025 https://www.suse.com/support/update/announcement/2025/suse-su-202503615-1 Bulletin de sécurité SUSE SUSE-SU-2025:03626-1 du 17 octobre 2025 https://www.suse.com/support/update/announcement/2025/suse-su-202503626-1 Référence CVE CVE-2021-4460 https://www.cve.org/CVERecord?id=CVE-2021-4460 Référence CVE CVE-2022-2602 https://www.cve.org/CVERecord?id=CVE-2022-2602 Référence CVE CVE-2022-2978 https://www.cve.org/CVERecord?id=CVE-2022-2978 Référence CVE CVE-2022-36280 https://www.cve.org/CVERecord?id=CVE-2022-36280 Référence CVE CVE-2022-43945 https://www.cve.org/CVERecord?id=CVE-2022-43945 Référence CVE CVE-2022-49138 https://www.cve.org/CVERecord?id=CVE-2022-49138 Référence CVE CVE-2022-49975 https://www.cve.org/CVERecord?id=CVE-2022-49975 Référence CVE CVE-2022-49980 https://www.cve.org/CVERecord?id=CVE-2022-49980 Référence CVE CVE-2022-50233 https://www.cve.org/CVERecord?id=CVE-2022-50233 Référence CVE CVE-2022-50234 https://www.cve.org/CVERecord?id=CVE-2022-50234 Référence CVE CVE-2022-50235 https://www.cve.org/CVERecord?id=CVE-2022-50235 Référence CVE CVE-2022-50239 https://www.cve.org/CVERecord?id=CVE-2022-50239 Référence CVE CVE-2022-50241 https://www.cve.org/CVERecord?id=CVE-2022-50241 Référence CVE CVE-2022-50242 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0723Multiples vulnérabilités dans le noyau Linux de SUSE

om/support/update/announcement/2025/suse-su-202502944-1 Bulletin de sécurité SUSE SUSE-SU-2025:02945-1 du 21 août 2025 https://www.suse.com/support/update/announcement/2025/suse-su-202502945-1 Bulletin de sécurité SUSE SUSE-SU-2025:02955-1 du 21 août 2025 https://www.suse.com/support/update/announcement/2025/suse-su-202502955-1 Référence CVE CVE-2019-11135 https://www.cve.org/CVERecord?id=CVE-2019-11135 Référence CVE CVE-2021-46984 https://www.cve.org/CVERecord?id=CVE-2021-46984 Référence CVE CVE-2021-46987 https://www.cve.org/CVERecord?id=CVE-2021-46987 Référence CVE CVE-2022-4129 https://www.cve.org/CVERecord?id=CVE-2022-4129 Référence CVE CVE-2022-49138 https://www.cve.org/CVERecord?id=CVE-2022-49138 Référence CVE CVE-2022-49319 https://www.cve.org/CVERecord?id=CVE-2022-49319 Référence CVE CVE-2022-49323 https://www.cve.org/CVERecord?id=CVE-2022-49323 Référence CVE CVE-2022-49768 https://www.cve.org/CVERecord?id=CVE-2022-49768 Référence CVE CVE-2022-49770 https://www.cve.org/CVERecord?id=CVE-2022-49770 Référence CVE CVE-2022-49825 https://www.cve.org/CVERecord?id=CVE-2022-49825 Référence CVE CVE-2022-49934 https://www.cve.org/CVERecord?id=CVE-2022-49934 Référence CVE CVE-2022-49948 https://www.cve.org/CVERecord?id=CVE-2022-49948 Référence CVE CVE-2022-49969 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0668Multiples vulnérabilités dans le noyau Linux de SUSE

05 août 2025 https://www.suse.com/support/update/announcement/2025/suse-su-202502699-1 Bulletin de sécurité SUSE SUSE-SU-2025:02704-1 du 05 août 2025 https://www.suse.com/support/update/announcement/2025/suse-su-202502704-1 Bulletin de sécurité SUSE SUSE-SU-2025:02707-1 du 05 août 2025 https://www.suse.com/support/update/announcement/2025/suse-su-202502707-1 Bulletin de sécurité SUSE SUSE-SU-2025:02708-1 du 05 août 2025 https://www.suse.com/support/update/announcement/2025/suse-su-202502708-1 Bulletin de sécurité SUSE SUSE-SU-2025:02710-1 du 05 août 2025 https://www.suse.com/support/update/announcement/2025/suse-su-202502710-1 Référence CVE CVE-2022-49138 https://www.cve.org/CVERecord?id=CVE-2022-49138 Référence CVE CVE-2022-49770 https://www.cve.org/CVERecord?id=CVE-2022-49770 Référence CVE CVE-2023-52923 https://www.cve.org/CVERecord?id=CVE-2023-52923 Référence CVE CVE-2023-52927 https://www.cve.org/CVERecord?id=CVE-2023-52927 Référence CVE CVE-2024-26643 https://www.cve.org/CVERecord?id=CVE-2024-26643 Référence CVE CVE-2024-26809 https://www.cve.org/CVERecord?id=CVE-2024-26809 Référence CVE CVE-2024-41069 https://www.cve.org/CVERecord?id=CVE-2024-41069 Référence CVE CVE-2024-50208 https://www.cve.org/CVERecord?id=CVE-2024-50208 Référence CVE CVE-2024-50250 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0336Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2022-49129 Référence CVE CVE-2022-49130 https://www.cve.org/CVERecord?id=CVE-2022-49130 Référence CVE CVE-2022-49131 https://www.cve.org/CVERecord?id=CVE-2022-49131 Référence CVE CVE-2022-49132 https://www.cve.org/CVERecord?id=CVE-2022-49132 Référence CVE CVE-2022-49133 https://www.cve.org/CVERecord?id=CVE-2022-49133 Référence CVE CVE-2022-49134 https://www.cve.org/CVERecord?id=CVE-2022-49134 Référence CVE CVE-2022-49135 https://www.cve.org/CVERecord?id=CVE-2022-49135 Référence CVE CVE-2022-49136 https://www.cve.org/CVERecord?id=CVE-2022-49136 Référence CVE CVE-2022-49137 https://www.cve.org/CVERecord?id=CVE-2022-49137 Référence CVE CVE-2022-49138 https://www.cve.org/CVERecord?id=CVE-2022-49138 Référence CVE CVE-2022-49139 https://www.cve.org/CVERecord?id=CVE-2022-49139 Référence CVE CVE-2022-49144 https://www.cve.org/CVERecord?id=CVE-2022-49144 Référence CVE CVE-2022-49145 https://www.cve.org/CVERecord?id=CVE-2022-49145 Référence CVE CVE-2022-49147 https://www.cve.org/CVERecord?id=CVE-2022-49147 Référence CVE CVE-2022-49148 https://www.cve.org/CVERecord?id=CVE-2022-49148 Référence CVE CVE-2022-49151 https://www.cve.org/CVERecord?id=CVE-2022-49151 Référence CVE CVE-2022-49153 https://www.cve.org/CVERecord?id=CVE-2022-49153 Référence CVE CVE-2022-49154 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0307Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2022-49129 Référence CVE CVE-2022-49130 https://www.cve.org/CVERecord?id=CVE-2022-49130 Référence CVE CVE-2022-49131 https://www.cve.org/CVERecord?id=CVE-2022-49131 Référence CVE CVE-2022-49132 https://www.cve.org/CVERecord?id=CVE-2022-49132 Référence CVE CVE-2022-49133 https://www.cve.org/CVERecord?id=CVE-2022-49133 Référence CVE CVE-2022-49134 https://www.cve.org/CVERecord?id=CVE-2022-49134 Référence CVE CVE-2022-49135 https://www.cve.org/CVERecord?id=CVE-2022-49135 Référence CVE CVE-2022-49136 https://www.cve.org/CVERecord?id=CVE-2022-49136 Référence CVE CVE-2022-49137 https://www.cve.org/CVERecord?id=CVE-2022-49137 Référence CVE CVE-2022-49138 https://www.cve.org/CVERecord?id=CVE-2022-49138 Référence CVE CVE-2022-49139 https://www.cve.org/CVERecord?id=CVE-2022-49139 Référence CVE CVE-2022-49144 https://www.cve.org/CVERecord?id=CVE-2022-49144 Référence CVE CVE-2022-49145 https://www.cve.org/CVERecord?id=CVE-2022-49145 Référence CVE CVE-2022-49147 https://www.cve.org/CVERecord?id=CVE-2022-49147 Référence CVE CVE-2022-49148 https://www.cve.org/CVERecord?id=CVE-2022-49148 Référence CVE CVE-2022-49151 https://www.cve.org/CVERecord?id=CVE-2022-49151 Référence CVE CVE-2022-49153 https://www.cve.org/CVERecord?id=CVE-2022-49153 Référence CVE CVE-2022-49154 https://www.cve.org/CVERecord?id=

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
kernel as a component of Red Hat Enterprise Linux 6; kernel-abi-whitelists as a component of Red Hat Enterprise Linux 6; kernel-bootwrapper as a component of Red Hat Enterprise Linux 6; kernel-debug as a component of Red Hat Enterprise Linux 6; kernel-debug-devel as a component of Red Hat Enterprise Linux 6; kernel-devel as a component of Red Hat Enterprise Linux 6; kernel-doc as a component of Red Hat Enterprise Linux 6; kernel-firmware as a component of Red Hat Enterprise Linux 6; kernel-headers as a component of Red Hat Enterprise Linux 6; kernel-kdump as a component of Red Hat Enterprise Linux 6; kernel-kdump-devel as a component of Red Hat Enterprise Linux 6; kernel.src as a component of Red Hat Enterprise Linux 6; perf as a component of Red Hat Enterprise Linux 6; python-perf as a component of Red Hat Enterprise Linux 6; bpftool as a component of Red Hat Enterprise Linux 7; kernel as a component of Red Hat Enterprise Linux 7; kernel-abi-whitelists as a component of Red Hat Enterprise Linux 7; kernel-bootwrapper as a component of Red Hat Enterprise Linux 7; kernel-debug as a component of Red Hat Enterprise Linux 7; kernel-debug-devel as a component of Red Hat Enterprise Linux 7; kernel-devel as a component of Red Hat Enterprise Linux 7; kernel-doc as a component of Red Hat Enterprise Linux 7; kernel-headers as a component of Red Hat Enterprise Linux 7; kernel-kdump as a component of Red Hat Enterprise Linux 7; kernel-kdump-devel as a component of Red Hat Enterprise Linux 7; kernel-rt as a component of Red Hat Enterprise Linux 7; kernel-rt-debug as a component of Red Hat Enterprise Linux 7; kernel-rt-debug-devel as a component of Red Hat Enterprise Linux 7; kernel-rt-debug-kvm as a component of Red Hat Enterprise Linux 7; kernel-rt-devel as a component of Red Hat Enterprise Linux 7; and 168 more
Fixed
< 2.6.27; 5.17.3 ≤ 5.17.*; 5.18 ≤ *
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 26 Feb 2025 · Last source change 5 Aug 2026, 08:54 UTC · CWE-476 · NULL Pointer Dereference

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2022-55085
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceNIST NVD
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2022-55085↗Vendor CSAF · Red Hat Product Security↗CVE authority or vendor reference↗Patch or update reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2022-49138 · cve.blacktree.nl