{"id":"CVE-2026-6664","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-6664","generatedAt":"2026-10-28T08:09:31.229Z","title":"An integer overflow in network packet parsing code in PgBouncer before 1.25.2 bypasses a boundary check and can lead to a crash.","description":"An integer overflow in network packet parsing code in PgBouncer before 1.25.2 bypasses a boundary check and can lead to a crash. An unauthenticated remote attacker can crash PgBouncer with a malformed SCRAM authentication packet.","published":"2026-05-09T01:16:09.000Z","lastModified":"2026-07-24T08:10:00.000Z","status":"Analyzed","sourceIdentifier":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-190"],"affected":["pgbouncer/pgbouncer"],"epss":{"score":0.00698,"percentile":0.52915,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.70%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://www.pgbouncer.org/changelog.html#pgbouncer-125x","tags":["Release Notes"],"source":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-6664","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."}