5.7

CVE-2023-4875: debian debian_linux Undefined Behavior for Input to API

CVSS: 5.7v3.1MediumModified
AliasesUBUNTU-CVE-2023-4875DEBIAN-CVE-2023-4875
Published 09-09-2023Last modified 25-07-2026

Vulnerability summary

CVE-2023-4875 is a medium (CVSS 5.7) Undefined Behavior for Input to API vulnerability in debian debian_linux. EPSS estimates a 0.55% chance of exploitation in the next 30 days, higher than 45% of scored vulnerabilities.

Overall risk
23/100
0100
Low · default modelHow is this calculated?
CVSS score
5.7/10
010
Medium · v3.1 (NVD)
EPSS score
0.55%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 9 · Related 5

Timeline

  1. 09-09-2023
    PublishedVulnerability first disclosed.
  2. 25-07-2026
    Last modifiedVulnerability information updated.

Description

Null pointer dereference when composing from a specially crafted draft message in Mutt >1.5.2 <2.2.12

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.55%

Chance of exploitation in the next 30 days

Percentile

45%

Versus all other CVEs

30-day change

0.00 pp

From 0.55% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.55%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian2 products
  • mutt< 2.2.9-1+deb12u1 | < 2.2.12-0.1
  • debian_linuxEOL10.0 | 11.0 | 12.0
Mutt1 product
  • mutt≥ 1.5.2, < 2.2.12 | > 1.5.2, < 2.2.12
Ubuntu1 product
  • mutt< 1.5.24-1ubuntu0.6+esm3 | < 1.9.4-3ubuntu0.6+esm1 | < 1.13.2-1ubuntu0.6 | < 2.1.4-1ubuntu1.2

3 vendors · 4 products

References

15 links
Show all 15 references