CVE-2022-3515

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2023-01-12. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this weekElevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 2%CVSS: 9.8Exploit: NoneExposed: 0

A fix is available — apply it.

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.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
73.8%
KEV
Not listed

Published

January 12, 2023

Last Modified

April 8, 2025

Advisory Details (5)

Auto-updated May 27, 2026
Patch available. Sources: redhat.
generic

Security Advisory for Libksba/GnuPG (CVE-2022-3515)

https://www.gnupg.org/blog/20221017-pepe-left-the-ksba.html
generic

NetApp Product Security

https://security.netapp.com/advisory/ntap-20230706-0008/
generic

rK4b7d9cd4a018

https://dev.gnupg.org/rK4b7d9cd4a018898d7714ce06f3faf2626c14582b
redhat Patch Available

2135610 – (CVE-2022-3515) CVE-2022-3515 libksba: integer overflow may lead to remote code execution

Affected: Red Hat Enterprise Linux 7

https://bugzilla.redhat.com/show_bug.cgi?id=2135610
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2022-3515

Vendor Advisories for CVE-2022-3515(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(9)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibksba-dev (1.3.3-1ubuntu0.16.04.1+esm1) @ xenial2026-05-25ubuntu
ubuntulibksba-dev (1.6.0-3ubuntu1) @ kinetic2026-05-25ubuntu
redhatredhat-virtualization-host-0:4.5.3-202211170828_8.62022-11-22redhat
redhatlibksba-0:1.3.5-8.el8_42022-11-14redhat
redhatlibksba-0:1.3.5-8.el8_22022-11-01redhat
redhatlibksba-0:1.3.5-8.el8_12022-10-26redhat
redhatlibksba-0:1.5.1-5.el9_02022-10-24redhat
redhatlibksba-0:1.3.0-6.el7_92022-10-24redhat
redhatlibksba-0:1.3.5-8.el8_62022-10-24redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(9)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 14× in last 7d / 49× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 109 total refreshes for this CVE.

  1. 2026-07-23 02:12 UTCEG score recompute
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Frequently asked(5)

What is CVE-2022-3515?
CVE-2022-3515 is a critical vulnerability published on January 12, 2023. 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.
When was CVE-2022-3515 disclosed?
CVE-2022-3515 was first published in the National Vulnerability Database on January 12, 2023, with the most recent update on April 8, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-3515 actively exploited?
CVE-2022-3515 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 73.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-3515?
CVE-2022-3515 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2022-3515?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-3515, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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