CVE-2018-13347: mercurial Integer Overflow or Wraparound
CVSS: 9.8v3.0CriticalModified
AliasesGHSA-3mjj-mr4f-qxmxPYSEC-2018-89UBUNTU-CVE-2018-13347DEBIAN-CVE-2018-13347
Published 06-07-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-13347 is a critical (CVSS 9.8) Integer Overflow or Wraparound vulnerability in mercurial. EPSS estimates a 2.67% chance of exploitation in the next 30 days, higher than 85.5% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.0 (NVD)EPSS score
2.67%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 7 · Related 3Timeline
- 06-07-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
mpatch.c in Mercurial before 4.6.1 mishandles integer addition and subtraction, aka OVE-20180430-0002.
CVSS metrics
6 scores · 4 sources · 3 versionsCritical 9.3Preferred score · OSV · Pypi (Ecosystem advisory) · calculated from vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NSourcesSingle source
Critical 9.8Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 4 agree
- OSV · PypiEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
2.67%
Chance of exploitation in the next 30 days
Percentile
86%
Versus all other CVEs
30-day change
0.00 pp
From 2.67% on 19-09-2026
19-09-202619-10-2026
EPSS score2.67%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- mercurial< 4.6.1-1
Mercurial1 product
- mercurial< 4.6.1
PyPI1 product
- mercurial< 4.6.1
Ubuntu1 product
- mercurial< 2.8.2-1ubuntu1.4 | < 3.7.3-1ubuntu1.1 | < 4.5.3-1ubuntu2.1
4 vendors · 4 products
