9.8

CVE-2023-36328: fedoraproject fedora Integer Overflow or Wraparound

CVSS: 9.8v3.1CriticalModified
AliasesMGASA-2023-0265UBUNTU-CVE-2023-36328USN-6402-1
Published 01-09-2023Last modified 26-06-2025

Vulnerability summary

CVE-2023-36328 is a critical (CVSS 9.8) Integer Overflow or Wraparound vulnerability in fedoraproject fedora. EPSS estimates a 1.26% chance of exploitation in the next 30 days, higher than 69.3% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
1.26%
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 0 · Related 1

Timeline

  1. 01-09-2023
    PublishedVulnerability first disclosed.
  2. 26-06-2025
    Last modifiedVulnerability information updated.

Description

Integer Overflow vulnerability in mp_grow in libtom libtommath before commit beba892bc0d4e4ded4d667ab1d2a94f4d75109a9, allows attackers to execute arbitrary code and cause a denial of service (DoS).

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

1.26%

Chance of exploitation in the next 30 days

Percentile

69%

Versus all other CVEs

30-day change

0.00 pp

From 1.26% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.26%

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

Mageia2 products
  • libtommath< 1.2.1-1.mga8
  • libtommath< 1.2.1-1.mga9
Debian1 product
  • libtommath< 1.2.0-6+deb12u1 | < 1.2.1-1 | < 1.2.0-6+deb11u1
Fedoraproject1 product
Libtom1 product
Ubuntu1 product
  • libtommath< 0.42.0-1.2ubuntu0.1~esm1 | < 1.0.1-1ubuntu0.1~esm1 | < 1.2.0-3ubuntu0.1 | < 1.2.0-6ubuntu0.22.04.1

5 vendors · 6 products

References

15 links
Show all 15 references