Undefined Behavior for Input to API in Mutt
Priority LOW 30CWE-475Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.
Summary
Null pointer dereference when viewing a specially crafted email in Mutt >1.5.2 <2.2.12
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00847 58th percentileScored 2026-11-07
Fix Fixed Mutt (Mutt): 2.2.12Red Hat: 2 advisories
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| mutt | Mutt | 1.5.2 to before 2.2.12 | 2.2.12 | Patch available | CNA |
- Mutt Vendormutt Affected 1.5.2 to before 2.2.12 Fixed in 2.2.12 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mutt:mutt:*:*:*:*:*:*:*:* | after 1.5.2, before 2.2.12 | Vulnerable | mutt |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 11.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:* | 12.0 | Vulnerable | Debian |
- cpe:2.3:a:mutt:mutt:*:*:*:*:*:*:*:* Versions after 1.5.2, before 2.2.12 Vulnerable ·mutt
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:* Versions 12.0 Vulnerable ·Debian
Remediation
- Fix · CNA Mutt (Mutt) Fixed in 2.2.12
Red Hat 2 advisories
- RHSA-2024:3058 Released 2024-05-22 · Red Hat rating Moderatemutt security update
- Red Hat Enterprise Linux AppStream (v. 8) mutt-5:2.0.7-3.el8
- RHSA-2024:2290 Released 2024-04-30 · Red Hat rating Moderatemutt security update
- Red Hat Enterprise Linux AppStream (v. 9) mutt-5:2.2.6-2.el9
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Mutt 2.2.12
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2023-04489 Undefined Behavior for Input to API in MuttPriority LOW 26
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2024:3058 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2024:2290 |
Timeline
- 2026-10-02 Threatist record created from CVE-2023-4874
- 2026-10-03 Alias added: GHSA-q9v3-53xg-6f9p
References
More Mutt vulnerabilities
- TI-2018-10297 An issue was discovered in Mutt before 1.10.1 and NeoMutt before 2018-07-16. CVSS 3.1CRITICAL 9.8
- TI-2018-10300 An issue was discovered in Mutt before 1.10.1 and NeoMutt before 2018-07-16. CVSS 3.1CRITICAL 9.8
- TI-2018-10293 An issue was discovered in Mutt before 1.10.1 and NeoMutt before 2018-07-16. CVSS 3.1CRITICAL 9.8
- TI-2018-10302 An issue was discovered in Mutt before 1.10.1 and NeoMutt before 2018-07-16. CVSS 3.1CRITICAL 9.8
- TI-2018-10301 An issue was discovered in Mutt before 1.10.1 and NeoMutt before 2018-07-16. CVSS 3.1CRITICAL 9.8
- TI-2018-10295 An issue was discovered in Mutt before 1.10.1 and NeoMutt before 2018-07-16. CVSS 3.1CRITICAL 9.8
Sources
- CVE-2023-4874 · CVE Program
- CVE-2023-4874 · NVD
- FIRST EPSS
- GHSA-q9v3-53xg-6f9p · GitHub Advisory Database · CC BY 4.0
- CVE-2023-4874 · Red Hat security data · CC BY 4.0
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