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Full vulnerability report · 2022
CVE-2022-47629High confidence

Libksba before 1.6.3 is prone to an integer overflow vulnerability in the CRL signature parser

n/a · n/a

9.8CriticalCVSS 3.1
Recommended action
Within 72 hours

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded.

Patch available
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.

2 current
SSA-455250 · CSAF 2.0 · revision 7 · finalSiemens ProductCERTSSA-455250: Multiple Vulnerabilities in Palo Alto Networks Virtual NGFW on RUGGEDCOM APE1808 Devices Before V11.1.2-h3
1 known affected

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

  • RUGGEDCOM APE1808
Summary
Libksba before 1.6.3 is prone to an integer overflow vulnerability in the CRL signature parser.
Remediation
Upgrade Palo Alto Networks Virtual NGFW V11.1.2-h3. Contact customer support to receive patch and update information
SSA-806742 · CSAF 2.0 · revision 1 · interimSiemens ProductCERTSSA-806742: Multiple Vulnerabilities in SCALANCE XCM-/XRM-300 before V2.4
11 known affected

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

  • SCALANCE XCH328 (6GK5328-4TS01-2EC2)
  • SCALANCE XCM324 (6GK5324-8TS01-2AC2)
  • SCALANCE XCM328 (6GK5328-4TS01-2AC2)
  • SCALANCE XCM332 (6GK5332-0GA01-2AC2)
  • SCALANCE XRH334 (24 V DC, 8xFO, CC) (6GK5334-2TS01-2ER3)
  • SCALANCE XRM334 (230 V AC, 12xFO) (6GK5334-3TS01-3AR3)
  • SCALANCE XRM334 (230 V AC, 8xFO) (6GK5334-2TS01-3AR3)
  • SCALANCE XRM334 (24 V DC, 12xFO) (6GK5334-3TS01-2AR3)
  • SCALANCE XRM334 (24 V DC, 8xFO) (6GK5334-2TS01-2AR3)
  • SCALANCE XRM334 (2x230 V AC, 12xFO) (6GK5334-3TS01-4AR3)
  • SCALANCE XRM334 (2x230 V AC, 8xFO) (6GK5334-2TS01-4AR3)
Summary
Libksba before 1.6.3 is prone to an integer overflow vulnerability in the CRL signature parser.
Remediation
Update to V2.4 or later version
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-2022-50389

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 72 hours

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded.

Patch available
01

What, why and how

Libksba before 1.6.3 is prone to an integer overflow vulnerability in the CRL signature parser.

What

Libksba before 1.6.3 is prone to an integer overflow vulnerability in the CRL signature parser.

Why

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

How

An attacker operating through a network path 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

Libksba before 1.6.3 is prone to an integer overflow vulnerability in the CRL signature parser.

Why

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

How

An attacker operating through a network path 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
a network path → Integer Overflow or Wraparound → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
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-190 ↗

CWE-190: Integer Overflow or Wraparound. The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/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.

AVNetworkAttack vector: The vulnerable component can be reached over a 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.
NetworkUnauthenticatedCWE-190
A

Official authority intelligence

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

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Official advisory
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Official advisory
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Official advisory
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Official advisory
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Official advisory
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Official advisory
CERT-FR · French · CERTFR-2026-AVI-0218Multiples vulnérabilités dans les produits VMware

ord?id=CVE-2022-43551 Référence CVE CVE-2022-43552 https://www.cve.org/CVERecord?id=CVE-2022-43552 Référence CVE CVE-2022-44840 https://www.cve.org/CVERecord?id=CVE-2022-44840 Référence CVE CVE-2022-45703 https://www.cve.org/CVERecord?id=CVE-2022-45703 Référence CVE CVE-2022-4645 https://www.cve.org/CVERecord?id=CVE-2022-4645 Référence CVE CVE-2022-47007 https://www.cve.org/CVERecord?id=CVE-2022-47007 Référence CVE CVE-2022-47008 https://www.cve.org/CVERecord?id=CVE-2022-47008 Référence CVE CVE-2022-47010 https://www.cve.org/CVERecord?id=CVE-2022-47010 Référence CVE CVE-2022-47011 https://www.cve.org/CVERecord?id=CVE-2022-47011 Référence CVE CVE-2022-47629 https://www.cve.org/CVERecord?id=CVE-2022-47629 Référence CVE CVE-2022-47673 https://www.cve.org/CVERecord?id=CVE-2022-47673 Référence CVE CVE-2022-47695 https://www.cve.org/CVERecord?id=CVE-2022-47695 Référence CVE CVE-2022-47696 https://www.cve.org/CVERecord?id=CVE-2022-47696 Référence CVE CVE-2022-48063 https://www.cve.org/CVERecord?id=CVE-2022-48063 Référence CVE CVE-2022-48064 https://www.cve.org/CVERecord?id=CVE-2022-48064 Référence CVE CVE-2022-48065 https://www.cve.org/CVERecord?id=CVE-2022-48065 Référence CVE CVE-2022-48281 https://www.cve.org/CVERecord?id=CVE-2022-48281 Référence CVE CVE-2022-48303 https://www.cve.org/CVERecord?id=

Official advisory
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ord?id=CVE-2021-42379 Référence CVE CVE-2021-42380 https://www.cve.org/CVERecord?id=CVE-2021-42380 Référence CVE CVE-2021-42381 https://www.cve.org/CVERecord?id=CVE-2021-42381 Référence CVE CVE-2021-42382 https://www.cve.org/CVERecord?id=CVE-2021-42382 Référence CVE CVE-2021-42383 https://www.cve.org/CVERecord?id=CVE-2021-42383 Référence CVE CVE-2021-42384 https://www.cve.org/CVERecord?id=CVE-2021-42384 Référence CVE CVE-2021-42385 https://www.cve.org/CVERecord?id=CVE-2021-42385 Référence CVE CVE-2021-42386 https://www.cve.org/CVERecord?id=CVE-2021-42386 Référence CVE CVE-2022-3515 https://www.cve.org/CVERecord?id=CVE-2022-3515 Référence CVE CVE-2022-47629 https://www.cve.org/CVERecord?id=CVE-2022-47629 Référence CVE CVE-2023-38709 https://www.cve.org/CVERecord?id=CVE-2023-38709 Référence CVE CVE-2024-24795 https://www.cve.org/CVERecord?id=CVE-2024-24795 Référence CVE CVE-2024-27316 https://www.cve.org/CVERecord?id=CVE-2024-27316 Référence CVE CVE-2024-51562 https://www.cve.org/CVERecord?id=CVE-2024-51562 Référence CVE CVE-2024-51563 https://www.cve.org/CVERecord?id=CVE-2024-51563 Référence CVE CVE-2024-51564 https://www.cve.org/CVERecord?id=CVE-2024-51564 Référence CVE CVE-2024-51565 https://www.cve.org/CVERecord?id=CVE-2024-51565 Référence CVE CVE-2024-51566 https://www.cve.org/CVERecord?id=

Official advisory
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Official advisory
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ERecord?id=CVE-2022-44370 Référence CVE CVE-2022-4450 https://www.cve.org/CVERecord?id=CVE-2022-4450 Référence CVE CVE-2022-45061 https://www.cve.org/CVERecord?id=CVE-2022-45061 Référence CVE CVE-2022-45142 https://www.cve.org/CVERecord?id=CVE-2022-45142 Référence CVE CVE-2022-45919 https://www.cve.org/CVERecord?id=CVE-2022-45919 Référence CVE CVE-2022-46392 https://www.cve.org/CVERecord?id=CVE-2022-46392 Référence CVE CVE-2022-46393 https://www.cve.org/CVERecord?id=CVE-2022-46393 Référence CVE CVE-2022-4743 https://www.cve.org/CVERecord?id=CVE-2022-4743 Référence CVE CVE-2022-4744 https://www.cve.org/CVERecord?id=CVE-2022-4744 Référence CVE CVE-2022-47629 https://www.cve.org/CVERecord?id=CVE-2022-47629 Référence CVE CVE-2022-48303 https://www.cve.org/CVERecord?id=CVE-2022-48303 Référence CVE CVE-2022-48434 https://www.cve.org/CVERecord?id=CVE-2022-48434 Référence CVE CVE-2022-4900 https://www.cve.org/CVERecord?id=CVE-2022-4900 Référence CVE CVE-2022-4904 https://www.cve.org/CVERecord?id=CVE-2022-4904 Référence CVE CVE-2023-0160 https://www.cve.org/CVERecord?id=CVE-2023-0160 Référence CVE CVE-2023-0215 https://www.cve.org/CVERecord?id=CVE-2023-0215 Référence CVE CVE-2023-0216 https://www.cve.org/CVERecord?id=CVE-2023-0216 Référence CVE CVE-2023-0217 https://www.cve.org/CVERecord?id=CVE-2023-02

Official advisory
CERT-FR · French · CERTFR-2023-AVI-0318Multiples vulnérabilités dans les produits VMware

rd?id=CVE-2022-3165 Référence CVE CVE-2022-33070 https://www.cve.org/CVERecord?id=CVE-2022-33070 Référence CVE CVE-2022-37454 https://www.cve.org/CVERecord?id=CVE-2022-37454 Référence CVE CVE-2022-40898 https://www.cve.org/CVERecord?id=CVE-2022-40898 Référence CVE CVE-2022-44617 https://www.cve.org/CVERecord?id=CVE-2022-44617 Référence CVE CVE-2022-44792 https://www.cve.org/CVERecord?id=CVE-2022-44792 Référence CVE CVE-2022-44793 https://www.cve.org/CVERecord?id=CVE-2022-44793 Référence CVE CVE-2022-45061 https://www.cve.org/CVERecord?id=CVE-2022-45061 Référence CVE CVE-2022-46285 https://www.cve.org/CVERecord?id=CVE-2022-46285 Référence CVE CVE-2022-47629 https://www.cve.org/CVERecord?id=CVE-2022-47629 Référence CVE CVE-2022-4883 https://www.cve.org/CVERecord?id=CVE-2022-4883 Référence CVE CVE-2023-22809 https://www.cve.org/CVERecord?id=CVE-2023-22809 Gestion détaillée du document le 17 avril 2023 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de la Défense et de la Sécurité Nationale / Agence nationale de la sécurité des systèmes d'information

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
RUGGEDCOM APE1808
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action
Upgrade Palo Alto Networks Virtual NGFW V11.1.2-h3. Contact customer support to receive patch and update information
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 20 Dec 2022 · Last source change 16 Apr 2025, 17:35 UTC · CWE-190 · Integer Overflow or Wraparound

CVE recordCVE.org · 5.1
CVSS sourceNIST NVD
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-2022-50389
Product sourceVendor CSAF · Siemens ProductCERT
Remediation sourceVendor CSAF · Siemens ProductCERT
CWE sourceCISA ADP
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-2022-50389↗Vendor CSAF · Siemens ProductCERT↗Patch or update reference↗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.
Free version - for non-commercial use only.CVE-2022-47629 · cve.blacktree.nl