HOMEVULNERABILITIESCVE-2022-3515
CRITICAL

CVE-2022-3515

CWE-190Published: January 12, 2023· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

A vulnerability was found in the Libksba library due to an integer overflow within the CRL parser. The vulnerability can be exploited remotely for code execution on the target system by passing specially crafted data to the application, for example, a malicious S/MIME attachment.

NVD Source

Technical Analysis

CVE-2022-3515 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

gnupg3 product(s)
libksbavs-desktopgnupg
gpg4win1 product(s)
gpg4win
Source: NVD CPE · 4 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://access.redhat.com/security/cve/CVE-2022-3515
PATCHhttps://dev.gnupg.org/rK4b7d9cd4a018898d7714ce06f3faf2626c14582b
PATCHhttps://access.redhat.com/security/cve/CVE-2022-3515
PATCHhttps://dev.gnupg.org/rK4b7d9cd4a018898d7714ce06f3faf2626c14582b
ADVISORYhttps://bugzilla.redhat.com/show_bug.cgi?id=2135610
ADVISORYhttps://www.gnupg.org/blog/20221017-pepe-left-the-ksba.html
ADVISORYhttps://bugzilla.redhat.com/show_bug.cgi?id=2135610
ADVISORYhttps://www.gnupg.org/blog/20221017-pepe-left-the-ksba.html

All References (10)

→
https://access.redhat.com/security/cve/CVE-2022-3515Patch · Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=2135610Exploit · Issue Tracking · Third Party Advisory
→
https://dev.gnupg.org/rK4b7d9cd4a018898d7714ce06f3faf2626c14582bExploit · Patch · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20230706-0008/
→
https://www.gnupg.org/blog/20221017-pepe-left-the-ksba.htmlThird Party Advisory
→
https://access.redhat.com/security/cve/CVE-2022-3515Patch · Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=2135610Exploit · Issue Tracking · Third Party Advisory
→
https://dev.gnupg.org/rK4b7d9cd4a018898d7714ce06f3faf2626c14582bExploit · Patch · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20230706-0008/
→
https://www.gnupg.org/blog/20221017-pepe-left-the-ksba.htmlThird Party Advisory

Quick Facts

CVE IDCVE-2022-3515
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-190
CISA KEVNo
Affected2 vendor(s)
PublishedJan 12, 2023

Related CVEs (CWE-190)

CVE-2015-5108
10.0
CVE-2015-5097
10.0
CVE-2010-1233
10.0
CVE-2012-5835
10.0
CVE-2013-2555
10.0
CVE-2008-2663
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2022-3515 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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