7.5

CVE-2021-43618: debian debian_linux Integer Overflow or Wraparound

CVSS: 7.5v3.1HighModified
AliasesALPINE-CVE-2021-43618MGASA-2021-0544SUSE-SU-2021:3878-1
Published 15-11-2021Last modified 14-10-2026
Open JSON

Vulnerability summary

CVE-2021-43618 is a high (CVSS 7.5) Integer Overflow or Wraparound vulnerability in debian debian_linux. EPSS estimates a 4.46% chance of exploitation in the next 30 days, higher than 91.3% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
41/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
4.46%
0%100%
Low · +0.75 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 0 · Related 2
CGA-WG4Q-4HHR-FGVCCGA-WG83-86MW-38G8

Timeline

  1. 15-11-2021
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Last modifiedVulnerability information updated.

Description

GNU Multiple Precision Arithmetic Library (GMP) through 6.2.1 has an mpz/inp_raw.c integer overflow and resultant buffer overflow via crafted input, leading to a segmentation fault on 32-bit platforms.

CVSS metrics

8 scores · 7 sources · 2 versions

EPSS trend

Probability

4.46%

Chance of exploitation in the next 30 days

Percentile

91%

Versus all other CVEs

30-day change

+0.75 pp

From 3.71% on 18-09-2026

18-09-202618-10-2026
EPSS score
4.46%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (gmplib.org)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Suse9 products
  • gmp&distro=SUSE Linux Enterprise Micro 5.0< 6.1.2-4.9.1
  • gmp&distro=SUSE Linux Enterprise Micro 5.1< 6.1.2-4.9.1
  • gmp&distro=SUSE Linux Enterprise Module for Basesystem 15 SP2< 6.1.2-4.9.1
  • gmp&distro=SUSE Linux Enterprise Module for Basesystem 15 SP3< 6.1.2-4.9.1
  • gmp&distro=SUSE Linux Enterprise Module for Development Tools 15 SP2< 6.1.2-4.9.1
Netapp6 products
Redhat6 products
  • gmp< 1:6.2.0-13.el9 | < 1:6.1.2-11.el8_6.1 | < 1:6.1.2-11.el8_8.1 | < 1:6.1.2-11.el8
  • gmp-c++< 1:6.2.0-13.el9 | < 1:6.1.2-11.el8_6.1 | < 1:6.1.2-11.el8_8.1 | < 1:6.1.2-11.el8
  • gmp-c++-debuginfo< 1:6.2.0-13.el9 | < 1:6.1.2-11.el8_6.1 | < 1:6.1.2-11.el8_8.1 | < 1:6.1.2-11.el8
  • gmp-debuginfo< 1:6.2.0-13.el9 | < 1:6.1.2-11.el8_6.1 | < 1:6.1.2-11.el8_8.1 | < 1:6.1.2-11.el8
  • gmp-debugsource< 1:6.2.0-13.el9 | < 1:6.1.2-11.el8_6.1 | < 1:6.1.2-11.el8_8.1 | < 1:6.1.2-11.el8
Opensuse3 products
  • gmp&distro=openSUSE Leap 15.2< 6.1.2-lp152.6.6.1
  • gmp&distro=openSUSE Leap 15.3< 6.1.2-4.9.1
  • gmp&distro=openSUSE Tumbleweed< 6.2.1-4.1
Debian2 products
  • gmp< 2:6.1.2+dfsg-1+deb9u1 | < 2:6.2.1+dfsg-3
  • debian_linuxEOL9.0
Alpine1 product
  • gmp< 6.2.1-r1
Chainguard1 product
  • gmp< 6.2.1-r4
Gmplib1 product
Mageia1 product
  • gmp< 6.2.1-1.1.mga8
Ubuntu1 product
  • gmp< 2:6.1.0+dfsg-2ubuntu0.1~esm1 | < 2:6.1.2+dfsg-2ubuntu0.1 | < 2:6.2.0+dfsg-4ubuntu0.1 | < 2:5.1.3+dfsg-1ubuntu1+esm1
Wolfi1 product
  • gmp< 6.2.1-r4

11 vendors · 32 products

References

39 links
Show all 39 references