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CVE-2022-3559Exim Regex use after free
- 4.6MediumCVSS base score
- 5.0%Exploitation in 30 daysEPSS · top 7.6% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A vulnerability was found in Exim and classified as problematic. This issue affects some unknown processing of the component Regex Handler. The manipulation leads to use after free. The name of the patch is 4e9ed49f8f12eb331b29bd5b6dc3693c520fddc2. It is recommended to apply a patch to fix this issue. The identifier VDB-211073 was assigned to this vulnerability.
Timeline
Published
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| VulDBCNA (assigner) | 3.1 | Medium4.6 | CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L |
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 5.0% · top 7.6% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.6.
Affected products
- affected n/a
References
References7
- https://git.exim.org/exim.git/commit/4e9ed49f8f12eb331b29bd5b6dc3693c520fddc2 (opens in a new tab)x_transferred
- https://vuldb.com/?id.211073 (opens in a new tab)x_transferred
- https://bugs.exim.org/show_bug.cgi?id=2915 (opens in a new tab)x_transferred
- FEDORA-2022-6125582f45 (opens in a new tab)vendor-advisoryx_transferred
- FEDORA-2022-ebb3db782c (opens in a new tab)vendor-advisoryx_transferred
- FEDORA-2022-90e08c08e6 (opens in a new tab)vendor-advisoryx_transferred
- https://lists.debian.org/debian-lts-announce/2024/10/msg00029.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-42925 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2022-3559)Record last updated .