BlackTreeIndependent security intelligence

Full vulnerability report · 2025

CVE-2022-28693High confidence

Unprotected alternative channel of return branch target prediction in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access

n/a · Intel(R) Processors

4.7MediumCVSS 3.1

Recommended action

Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Fix not verified

Distribution package intelligence

Ubuntu vendor package status

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

12 package states

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 release	Source package	Vendor state	Fixed version	Evidence
Ubuntu 24.04 LTSnoble · standard archive	`linux-aws-6.14`	Affected, 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 feed`	Canonical record ↗Source updated 4 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-azure-6.11`	Affected, 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 feed`	Canonical record ↗Source updated 4 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-gcp-6.11`	Affected, 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 feed`	Canonical record ↗Source updated 4 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-hwe-6.11`	Affected, 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 feed`	Canonical record ↗Source updated 4 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-intel`	Affected, 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 feed`	Canonical record ↗Source updated 4 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-lowlatency-hwe-6.11`	Affected, 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 feed`	Canonical record ↗Source updated 4 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-nvidia-6.11`	Affected, 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 feed`	Canonical record ↗Source updated 4 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-oem-6.11`	Affected, 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 feed`	Canonical record ↗Source updated 4 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-oracle-6.14`	Affected, 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 feed`	Canonical record ↗Source updated 4 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-raspi-realtime`	Affected, 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 feed`	Canonical record ↗Source updated 4 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-realtime`	Affected, 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 feed`	Canonical record ↗Source updated 4 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-riscv`	Affected, 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 feed`	Canonical record ↗Source updated 4 Sept 2026

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-2022-33135

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 actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Fix not verified

What, why and how

Unprotected alternative channel of return branch target prediction in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access.

What

Unprotected alternative channel of return branch target prediction in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access.

Why

The product protects a primary channel, but it does not use the same level of protection for an alternate channel.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may obtain information outside the intended access boundary.

What

Unprotected alternative channel of return branch target prediction in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access.

Why

The product protects a primary channel, but it does not use the same level of protection for an alternate channel.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may obtain information outside the intended access boundary.

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: local access → Unprotected Alternate Channel → obtain information outside the intended access boundary
Attack surface: Local
Privileges required: Low: a basic authenticated account is required
User interaction: None
Attack complexity: High: exploitation depends on specific conditions
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-420 ↗
CWE-420: Unprotected Alternate Channel. The product protects a primary channel, but it does not use the same level of protection for an alternate channel.
CVSS vector ? CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.PRLowPrivileges required: The attacker needs basic user-level 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.INoneIntegrity impact: No direct loss is represented by this metric.ANoneAvailability impact: No direct loss is represented by this metric.
Post-exploitation / living off the land: The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.

CWE-420

Official authority intelligence

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

ENISA EUVD · EUVD-2022-33135Official EUVD mapping

0 linked advisory records.

Official EUVD record

BSI · German · WID-SEC-W-2024-0794Dell ECS: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Dell ECS ausnutzen, um seine Privilegien zu erweitern, beliebigen Programmcode mit Administratorrechten auszuführen, Informationen offenzulegen, Dateien zu manipulieren, einen Cross-Site-Scripting-Angriff durchzuführen, Sicherheitsvorkehrungen zu umgehen oder einen Denial of Service Zustand herbeizuführen.

Official advisory

BSI · German · WID-SEC-W-2022-0650Intel Prozessoren: Mehrere Schwachstellen ermöglichen Offenlegung von Informationen

Ein lokaler Angreifer kann mehrere Schwachstellen in Intel Prozessoren ausnutzen, um Informationen offenzulegen.

Official advisory

BSI · German · WID-SEC-W-2022-0659VMware ESXi: Mehrere Schwachstellen ermöglichen Offenlegung von Informationen

Ein lokaler Angreifer kann mehrere Schwachstellen in VMware ESXi und VMware Cloud Foundation ausnutzen, um Informationen offenzulegen.

Official advisory

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

ord?id=CVE-2022-23825 Référence CVE CVE-2022-25265 https://www.cve.org/CVERecord?id=CVE-2022-25265 Référence CVE CVE-2022-25836 https://www.cve.org/CVERecord?id=CVE-2022-25836 Référence CVE CVE-2022-25837 https://www.cve.org/CVERecord?id=CVE-2022-25837 Référence CVE CVE-2022-26047 https://www.cve.org/CVERecord?id=CVE-2022-26047 Référence CVE CVE-2022-27635 https://www.cve.org/CVERecord?id=CVE-2022-27635 Référence CVE CVE-2022-27943 https://www.cve.org/CVERecord?id=CVE-2022-27943 Référence CVE CVE-2022-2795 https://www.cve.org/CVERecord?id=CVE-2022-2795 Référence CVE CVE-2022-28667 https://www.cve.org/CVERecord?id=CVE-2022-28667 Référence CVE CVE-2022-28693 https://www.cve.org/CVERecord?id=CVE-2022-28693 Référence CVE CVE-2022-29217 https://www.cve.org/CVERecord?id=CVE-2022-29217 Référence CVE CVE-2022-29526 https://www.cve.org/CVERecord?id=CVE-2022-29526 Référence CVE CVE-2022-2961 https://www.cve.org/CVERecord?id=CVE-2022-2961 Référence CVE CVE-2022-3114 https://www.cve.org/CVERecord?id=CVE-2022-3114 Référence CVE CVE-2022-3219 https://www.cve.org/CVERecord?id=CVE-2022-3219 Référence CVE CVE-2022-3238 https://www.cve.org/CVERecord?id=CVE-2022-3238 Référence CVE CVE-2022-3523 https://www.cve.org/CVERecord?id=CVE-2022-3523 Référence CVE CVE-2022-36087 https://www.cve.org/CVERecord?id=CVE-2022-3

Official advisory

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

Official advisory

CERT-FR · French · CERTFR-2022-AVI-826Multiples vulnérabilités dans le noyau Linux de SUSE

CVERecord?id=CVE-2022-20368 Référence CVE CVE-2022-20369 https://www.cve.org/CVERecord?id=CVE-2022-20369 Référence CVE CVE-2022-21385 https://www.cve.org/CVERecord?id=CVE-2022-21385 Référence CVE CVE-2022-2585 https://www.cve.org/CVERecord?id=CVE-2022-2585 Référence CVE CVE-2022-2588 https://www.cve.org/CVERecord?id=CVE-2022-2588 Référence CVE CVE-2022-26373 https://www.cve.org/CVERecord?id=CVE-2022-26373 Référence CVE CVE-2022-2639 https://www.cve.org/CVERecord?id=CVE-2022-2639 Référence CVE CVE-2022-2663 https://www.cve.org/CVERecord?id=CVE-2022-2663 Référence CVE CVE-2022-28356 https://www.cve.org/CVERecord?id=CVE-2022-28356 Référence CVE CVE-2022-28693 https://www.cve.org/CVERecord?id=CVE-2022-28693 Référence CVE CVE-2022-2873 https://www.cve.org/CVERecord?id=CVE-2022-2873 Référence CVE CVE-2022-2905 https://www.cve.org/CVERecord?id=CVE-2022-2905 Référence CVE CVE-2022-2938 https://www.cve.org/CVERecord?id=CVE-2022-2938 Référence CVE CVE-2022-29581 https://www.cve.org/CVERecord?id=CVE-2022-29581 Référence CVE CVE-2022-2959 https://www.cve.org/CVERecord?id=CVE-2022-2959 Référence CVE CVE-2022-2977 https://www.cve.org/CVERecord?id=CVE-2022-2977 Référence CVE CVE-2022-2991 https://www.cve.org/CVERecord?id=CVE-2022-2991 Référence CVE CVE-2022-3028 https://www.cve.org/CVERecord?id=CVE-2022-3028

Official advisory

CERT-FR · French · CERTFR-2022-AVI-638Multiples vulnérabilités dans les produits VMware

De multiples vulnérabilités ont été découvertes dans les produits VMware. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une atteinte à la confidentialité des données et une injection de code indirecte à distance (XSS).

Official advisory

CERT-FR · French · CERTFR-2022-AVI-636Multiples vulnérabilités dans les produits Intel

De multiples vulnérabilités ont été découvertes dans les produits Intel. Elles permettent à un attaquant de provoquer une atteinte à la confidentialité des données.

Official advisory

CERT-FR · French · CERTFR-2022-AVI-1125Multiples vulnérabilités dans le noyau Linux de SUSE

org/CVERecord?id=CVE-2022-20369 Référence CVE CVE-2022-2153 https://www.cve.org/CVERecord?id=CVE-2022-2153 Référence CVE CVE-2022-2586 https://www.cve.org/CVERecord?id=CVE-2022-2586 Référence CVE CVE-2022-2588 https://www.cve.org/CVERecord?id=CVE-2022-2588 Référence CVE CVE-2022-2602 https://www.cve.org/CVERecord?id=CVE-2022-2602 Référence CVE CVE-2022-26373 https://www.cve.org/CVERecord?id=CVE-2022-26373 Référence CVE CVE-2022-2639 https://www.cve.org/CVERecord?id=CVE-2022-2639 Référence CVE CVE-2022-2663 https://www.cve.org/CVERecord?id=CVE-2022-2663 Référence CVE CVE-2022-28356 https://www.cve.org/CVERecord?id=CVE-2022-28356 Référence CVE CVE-2022-28693 https://www.cve.org/CVERecord?id=CVE-2022-28693 Référence CVE CVE-2022-2873 https://www.cve.org/CVERecord?id=CVE-2022-2873 Référence CVE CVE-2022-28748 https://www.cve.org/CVERecord?id=CVE-2022-28748 Référence CVE CVE-2022-2905 https://www.cve.org/CVERecord?id=CVE-2022-2905 Référence CVE CVE-2022-2938 https://www.cve.org/CVERecord?id=CVE-2022-2938 Référence CVE CVE-2022-2959 https://www.cve.org/CVERecord?id=CVE-2022-2959 Référence CVE CVE-2022-2964 https://www.cve.org/CVERecord?id=CVE-2022-2964 Référence CVE CVE-2022-2977 https://www.cve.org/CVERecord?id=CVE-2022-2977 Référence CVE CVE-2022-2978 https://www.cve.org/CVERecord?id=CVE-2022-2978

Official advisory

CERT-FR · French · CERTFR-2022-AVI-1122Multiples vulnérabilités dans le noyau Linux de SUSE

w.suse.com/support/update/announcement/2022/suse-su-20224595-1/ Bulletin de sécurité SUSE du 20 décembre 2022 https://www.suse.com/support/update/announcement/2022/suse-su-20224585-1/ Référence CVE CVE-2019-3874 https://www.cve.org/CVERecord?id=CVE-2019-3874 Référence CVE CVE-2020-26541 https://www.cve.org/CVERecord?id=CVE-2020-26541 Référence CVE CVE-2021-4037 https://www.cve.org/CVERecord?id=CVE-2021-4037 Référence CVE CVE-2022-2153 https://www.cve.org/CVERecord?id=CVE-2022-2153 Référence CVE CVE-2022-2602 https://www.cve.org/CVERecord?id=CVE-2022-2602 Référence CVE CVE-2022-2663 https://www.cve.org/CVERecord?id=CVE-2022-2663 Référence CVE CVE-2022-28693 https://www.cve.org/CVERecord?id=CVE-2022-28693 Référence CVE CVE-2022-28748 https://www.cve.org/CVERecord?id=CVE-2022-28748 Référence CVE CVE-2022-2964 https://www.cve.org/CVERecord?id=CVE-2022-2964 Référence CVE CVE-2022-2978 https://www.cve.org/CVERecord?id=CVE-2022-2978 Référence CVE CVE-2022-3169 https://www.cve.org/CVERecord?id=CVE-2022-3169 Référence CVE CVE-2022-3176 https://www.cve.org/CVERecord?id=CVE-2022-3176 Référence CVE CVE-2022-33981 https://www.cve.org/CVERecord?id=CVE-2022-33981 Référence CVE CVE-2022-3424 https://www.cve.org/CVERecord?id=CVE-2022-3424 Référence CVE CVE-2022-3521 https://www.cve.org/CVERecord?id=CVE-2022-35

Official advisory

CERT-FR · French · CERTFR-2022-AVI-1115Multiples vulnérabilités dans le noyau Linux de SUSE

-1/ Bulletin de sécurité SUSE du 17 décembre 2022 https://www.suse.com/support/update/announcement/2022/suse-su-20224542-1/ Bulletin de sécurité SUSE du 17 décembre 2022 https://www.suse.com/support/update/announcement/2022/suse-su-20224543-1/ Bulletin de sécurité SUSE du 17 décembre 2022 https://www.suse.com/support/update/announcement/2022/suse-su-20224527-1/ Bulletin de sécurité SUSE du 17 décembre 2022 https://www.suse.com/support/update/announcement/2022/suse-su-20224544-1/ Référence CVE CVE-2021-39698 https://www.cve.org/CVERecord?id=CVE-2021-39698 Référence CVE CVE-2022-2602 https://www.cve.org/CVERecord?id=CVE-2022-2602 Référence CVE CVE-2022-28693 https://www.cve.org/CVERecord?id=CVE-2022-28693 Référence CVE CVE-2022-2964 https://www.cve.org/CVERecord?id=CVE-2022-2964 Référence CVE CVE-2022-3176 https://www.cve.org/CVERecord?id=CVE-2022-3176 Référence CVE CVE-2022-3545 https://www.cve.org/CVERecord?id=CVE-2022-3545 Référence CVE CVE-2022-3566 https://www.cve.org/CVERecord?id=CVE-2022-3566 Référence CVE CVE-2022-3567 https://www.cve.org/CVERecord?id=CVE-2022-3567 Référence CVE CVE-2022-3577 https://www.cve.org/CVERecord?id=CVE-2022-3577 Référence CVE CVE-2022-3586 https://www.cve.org/CVERecord?id=CVE-2022-3586 Référence CVE CVE-2022-3628 https://www.cve.org/CVERecord?id=CVE-2022-3628 R

Official advisory

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.: Fix not verified
Affected: See references
Fixed: No fixed version is explicitly recorded in the structured CVE data.
Action: No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
Workaround: No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.

Evidence and provenance

Published 14 Feb 2025 · Last source change 14 Feb 2025, 20:55 UTC · CWE-420 · Unprotected Alternate Channel

CVE recordCVE.org · 5.1

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-2022-33135

Product sourceCNA

Remediation sourceCVE/CNA references

CWE sourceCNA

NVD statusNVD not scheduled

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.

2025-02-14CVE published

ENISA EUVD · EUVD-2022-33135↗CVE authority or vendor 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.

Unprotected alternative channel of return branch target prediction in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access

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

EUVD-2022-33135

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

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