CISA KEV entry
CVE-2010-4344Exim Heap-Based Buffer Overflow Vulnerability
Exim Exim. Added to the CISA Known Exploited Vulnerabilities catalogue on 25 March 2022.
Data status: a source is stale
Last synced CISA catalogue version 2026.11.04 (released 4 November 2026) 1,768 entries Updated manually
- Date added
- 2022-03-25
- Federal due date
- 2022-04-15 21 days after it was added; passed at the sync of 2026-11-05
- Known ransomware use
- Unknown
- Forensic triage (BOD 26-04)
- No
- CVSS
- 9.8 Critical CVSS 3.1, scored by nvd@nist.gov
- EPSS
- 71.70% percentile 99.4, scored 2026-11-04
- CISA SSVC
- Exploitation active, automatable yes, technical impact total
- NVD status
- Analyzed published 2010-12-14, 4119 days before the KEV listing
BOD 26-04 remediation window
With CISA's SSVC answers for this CVE (automatable: yes, technical impact: total), BOD 26-04 Table 1 gives 3 days and forensic triage on a publicly exposed asset (row 1) and 3 days and forensic triage on an asset that is not publicly exposed (row 9) S06. The catalogue due date, 21 days after the date added, was set before BOD 26-04 took effect on 10 June 2026 S06. The directive binds US federal civilian executive branch agencies only.
What CISA says
Short description
Heap-based buffer overflow in the string_vformat function in string.c in Exim before 4.70 allows remote attackers to execute arbitrary code via an SMTP session.
Required action
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2010-4344
CWE in the catalogue
CWE-119
Official links
- CISA KEV catalogue entry cisa.gov
- NVD record nvd.nist.gov
Vendor advisory and patch links
References NVD tags Vendor Advisory or Patch, exactly as NVD lists them.
- http://bugs.exim.org/show_bug.cgi?id=787 Issue Tracking, Patch
- http://git.exim.org/exim.git/commit/24c929a27415c7cfc7126c47e4cad39acf3efa6b Mailing List, Patch
- http://lists.exim.org/lurker/message/20101210.164935.385e04d0.en.html Mailing List, Patch
- http://secunia.com/advisories/40019 Broken Link, Vendor Advisory; NVD marks this link broken
- http://secunia.com/advisories/42576 Broken Link, Vendor Advisory; NVD marks this link broken
- http://secunia.com/advisories/42586 Broken Link, Vendor Advisory; NVD marks this link broken
- http://secunia.com/advisories/42587 Broken Link, Vendor Advisory; NVD marks this link broken
- http://secunia.com/advisories/42589 Broken Link, Vendor Advisory; NVD marks this link broken
- http://www.osvdb.org/69685 Broken Link, Exploit, Patch; NVD marks this link broken
- http://www.vupen.com/english/advisories/2010/3171 Broken Link, Vendor Advisory; NVD marks this link broken
- http://www.vupen.com/english/advisories/2010/3172 Broken Link, Vendor Advisory; NVD marks this link broken
- http://www.vupen.com/english/advisories/2010/3181 Broken Link, Vendor Advisory; NVD marks this link broken
- http://www.vupen.com/english/advisories/2010/3186 Broken Link, Vendor Advisory; NVD marks this link broken
- http://www.vupen.com/english/advisories/2010/3204 Broken Link, Vendor Advisory; NVD marks this link broken
- http://www.vupen.com/english/advisories/2010/3246 Broken Link, Vendor Advisory; NVD marks this link broken
Links in CISA's notes
NVD details
- CWE (NVD)
- CWE-787 by nvd@nist.gov
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- CVSS versions in NVD
- V2, V31
- Last modified in NVD
- 2026-06-16T23:24:36.107
Where each value comes from
| Field | Source | Fetched, UTC | State |
|---|---|---|---|
| Catalogue fields | CISA KEV JSON, version 2026.11.04 | 2026-11-05 11:38 | current |
| NVD published, status, CVSS, CWE, vendor links | NVD CVE API 2.0; CVSS: NVD (nvd@nist.gov) | 2026-11-03 12:37 | current at 2026-11-05 11:38 |
| EPSS | FIRST EPSS API, scores of 2026-11-04 | 2026-11-05 11:38 | current |
| CISA SSVC | CISA ADP (via NVD), record of 2025-02-07 | 2026-11-03 12:37 | current |
This product uses data from the NVD API but is not endorsed or certified by the NVD. CISA does not endorse Sysprobs. Methodology.