Libksba before 1.6.3 is prone to an integer overflow vulnerability in the CRL signature parser.
CVE-2022-47629
Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-12-21. NVD baseline CVSS 9.8; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 9.8
- EG Score
- 9.8(medium)
- EG Risk
- 45(Track)EG Risk 45/100SSVC: Track
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 computedSeverity98% × 45%Exploitation2% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 72.5%
- KEV
- Not listed
Published
December 20, 2022
Last Modified
April 16, 2025
Advisory Details (5)
Auto-updated May 28, 2026libksba: Remote Code Execution (GLSA 202212-07) — Gentoo security
https://security.gentoo.org/glsa/202212-07[SECURITY] [DLA 3248-1] libksba security update
https://lists.debian.org/debian-lts-announce/2022/12/msg00035.htmlPatch Availability(12)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | libksba-dev (1.3.3-1ubuntu0.16.04.1+esm2) @ xenial | 2026-05-25 | ubuntu |
| ubuntu | libksba-dev (1.3.5-2ubuntu0.18.04.2) @ bionic | 2026-05-25 | ubuntu |
| redhat | redhat-virtualization-host-0:4.5.3-202302150956_8.6 | 2023-02-21 | redhat |
| redhat | patch | 2023-02-14 | redhat |
| redhat | libksba-0:1.3.5-9.el8_7 | 2023-02-07 | redhat |
| redhat | libksba-0:1.3.5-9.el8_4 | 2023-02-07 | redhat |
| redhat | libksba-0:1.5.1-6.el9_1 | 2023-02-07 | redhat |
| redhat | libksba-0:1.5.1-6.el9_0 | 2023-02-07 | redhat |
| redhat | libksba-0:1.3.5-9.el8_2 | 2023-02-06 | redhat |
| redhat | libksba-0:1.3.5-9.el8_6 | 2023-02-06 | redhat |
| redhat | libksba-0:1.3.5-9.el8_1 | 2023-02-06 | redhat |
| redhat | libksba-0:1.3.0-7.el7_9 | 2023-01-30 | redhat |
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.
All Vendor Advisories
(13)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
- Microsoft MSRCCVE-2022-476292023-01-04
Libksba before 1.6.3 is prone to an integer overflow vulnerability in the CRL signature parser.
- Red HatRHSA-2023:0530IMPORTANT2022-10-17
RHSA-2023:0530 — Important
- Red HatRHSA-2023:0592IMPORTANT2022-10-17
RHSA-2023:0592 — Important
- Red HatRHSA-2023:0593IMPORTANT2022-10-17
RHSA-2023:0593 — Important
- Red HatRHSA-2023:0594IMPORTANT2022-10-17
RHSA-2023:0594 — Important
- Red HatRHSA-2023:0624IMPORTANT2022-10-17
RHSA-2023:0624 — Important
- Red HatRHSA-2023:0625IMPORTANT2022-10-17
RHSA-2023:0625 — Important
- Red HatRHSA-2023:0626IMPORTANT2022-10-17
RHSA-2023:0626 — Important
- Red HatRHSA-2023:0629IMPORTANT2022-10-17
RHSA-2023:0629 — Important
- Red HatRHSA-2023:0756IMPORTANT2022-10-17
RHSA-2023:0756 — Important
- Red HatRHSA-2023:0859IMPORTANT2022-10-17
RHSA-2023:0859 — Important
- UbuntuUSN-5787-1MEDIUM
Libksba vulnerability
- UbuntuUSN-5787-2MEDIUM
Libksba vulnerability
Data Freshness Timeline
(refreshed 11× in last 7d / 41× 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.
- 2026-07-24 14:15 UTCEPSS rescore
- 2026-07-23 14:16 UTCEPSS rescore
- 2026-07-23 02:15 UTCEG score recompute
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- 2026-07-16 11:53 UTCOSV refresh
- 2026-07-15 16:56 UTCEPSS rescore
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- 2026-07-06 16:25 UTCEPSS rescore
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- 2026-06-28 14:06 UTCEPSS rescore
- 2026-06-28 10:49 UTCOSV refresh
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- 2026-06-10 22:17 UTCEPSS rescore
- 2026-06-10 21:17 UTCOSV refresh
- 2026-06-10 13:21 UTCEPSS rescore
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- 2026-06-08 14:15 UTCEPSS rescore
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- 2026-05-25 10:08 UTCEG score recompute
- 2026-05-25 10:08 UTCVendor advisory
- 2026-05-25 10:08 UTCGHSA enrichment
Related CVEs(same vendor + same CWE)
Same vendor
10 shownmsrc · redhat
Same CWE
10 shownCWE-190
- CVE-2009-0947EG 9.8CRITICAL
- CVE-2013-2729EG 9.8 KEVEPSS 99%CRITICAL
- CVE-2005-1141EG 9.8CRITICAL
- CVE-2005-0102EG 9.8CRITICAL
- CVE-2002-0391EG 9.8EPSS 99%CRITICAL
- CVE-2002-0639EG 9.8EPSS 97%CRITICAL
- CVE-2013-3486EG 9.6CRITICAL
- CVE-2013-2596NVD 7.8EG 9.0 KEVHIGH
- CVE-2012-5054NVD 8.8EG 9.0 KEVEPSS 97%HIGH
- CVE-2011-1823NVD 7.8EG 9.0 KEVEPSS 99%HIGH
Frequently asked(5)
What is CVE-2022-47629?
When was CVE-2022-47629 disclosed?
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What is the CVSS score of CVE-2022-47629?
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