{"id":"CVE-2026-75883","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-75883","generatedAt":"2026-10-27T23:56:46.660Z","title":"Thus a pppd process connecting to a server which requests PEAP authentication can be induced to corrupt global static data following the outpacket_buf array, most likely causing incorrect behavior or a crash.","description":"The code in pppd that formats a response to a PEAP Request packet in peap_response() copies an entire TLS record of up to 16384 bytes into the fixed global buffer outpacket_buf\n without checking the available space and without implementing outgoing \nPEAP fragmentation. Thus a pppd process connecting to a server which \nrequests PEAP authentication can be induced to corrupt global static \ndata following the outpacket_buf array, most likely causing incorrect behavior or a crash.","published":"2026-09-18T16:17:09.000Z","lastModified":"2026-09-22T15:17:14.000Z","status":"Awaiting Analysis","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.1","score":6.8,"severity":"MEDIUM","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"},"cwe":["CWE-122"],"affected":[],"epss":{"score":0.00178,"percentile":0.0728,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.18%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/ppp-project/ppp/security/advisories/GHSA-rwr9-4vx8-vc35","source":"secalert@redhat.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-75883","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."}