{"id":"CVE-2023-31102","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-31102","generatedAt":"2026-11-04T22:43:11.879Z","title":"Ppmd7.c in 7-Zip before 23.00 allows an integer underflow and invalid read operation via a crafted 7Z archive.","description":"Ppmd7.c in 7-Zip before 23.00 allows an integer underflow and invalid read operation via a crafted 7Z archive.","published":"2023-11-03T04:15:21.000Z","lastModified":"2026-06-17T05:56:18.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-191"],"affected":["7-zip/7-zip","netapp/active iq unified manager","netapp/oncommand workflow automation"],"epss":{"score":0.53987,"percentile":0.99005,"date":"2026-11-03","history":[{"date":"2026-10-17","score":0.55211,"percentile":0.99023},{"date":"2026-10-25","score":0.53987,"percentile":0.98995}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 54.0%, higher than 99% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://ds-security.com/post/integer-overflow-in-7-zip-cve-2023-31102/","source":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20231110-0007/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://sourceforge.net/p/sevenzip/discussion/45797/thread/713c8a8269/","tags":["Issue Tracking","Release Notes"],"source":"cve@mitre.org"},{"url":"https://www.7-zip.org/download.html","tags":["Product"],"source":"cve@mitre.org"},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-23-1165/","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://ds-security.com/post/integer-overflow-in-7-zip-cve-2023-31102/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20231110-0007/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://sourceforge.net/p/sevenzip/discussion/45797/thread/713c8a8269/","tags":["Issue Tracking","Release Notes"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.7-zip.org/download.html","tags":["Product"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-23-1165/","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-31102","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}