{"cve":"CVE-2018-17983","nvd":{"published":"2018-10-04T23:29:00.417","modified":"2026-06-17T01:46:38.700","status":"Modified","description":"cext/manifest.c in Mercurial before 4.7.2 has an out-of-bounds read during parsing of a malformed manifest entry.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","score":9.1},"cwes":["CWE-125"],"references":["https://www.mercurial-scm.org/repo/hg/rev/5405cb1a7901","https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.7.2_.282018-10-01.29","https://www.mercurial-scm.org/repo/hg/rev/5405cb1a7901","https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.7.2_.282018-10-01.29"],"products":["mercurial:mercurial"],"source":"nvd","synced_at":"2026-10-19T20:53:14.491561039+00:00"},"epss":{"cve":"CVE-2018-17983","score":0.01969,"percentile":0.80394,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-p575-cf9h-wv42","url":"https://osv.dev/vulnerability/GHSA-p575-cf9h-wv42","summary":"Mercurial Out-of-bounds Read vulnerability","modified":"2024-09-24T21:01:32.725834Z","packages":[{"ecosystem":"PyPI","name":"mercurial","purl":"pkg:pypi/mercurial","ranges":["<4.7.2"],"fixed":["4.7.2"]}]},{"id":"PYSEC-2018-91","url":"https://osv.dev/vulnerability/PYSEC-2018-91","summary":"","modified":"2026-06-10T17:01:24.129646652Z","packages":[{"ecosystem":"PyPI","name":"mercurial","purl":"pkg:pypi/mercurial","ranges":["<4.7.2"],"fixed":["4.7.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}