{"id":"CVE-2026-111732","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-111732","generatedAt":"2026-11-04T11:56:56.208Z","title":"A crafted Connect request causes an out-of-bounds write.","description":"P-Net before 1.0.3, when built with PNET_OPTION_AR_VENDOR_BLOCKS enabled, parses a data length from a field of the ARVendorBlock request that is not part of the block definition and uses it as the number of bytes to copy into a fixed-size buffer, without comparing it with the buffer size or the block length. A crafted Connect request causes an out-of-bounds write. This can lead to a crash (denial of service) or potentially arbitrary code execution.\n\n\n\nThis option is disabled by default.","published":"2026-10-29T16:17:57.000Z","lastModified":"2026-10-29T16:26:37.000Z","status":"Deferred","sourceIdentifier":"4b71179a-3b92-4a9d-b9fc-af8b8ed579ee","cvss":{"version":"4.0","score":9.3,"severity":"CRITICAL","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:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-787"],"affected":[],"epss":{"score":0.00404,"percentile":0.34692,"date":"2026-11-03","history":[{"date":"2026-10-30","score":0.00404,"percentile":0.34636}]},"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 (0.40%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-29T16:17:57.000Z","detail":{"score":"9.3","severity":"CRITICAL","publishedAt":"2026-10-29T16:17:57.480Z"},"summary":"New CVE, critical severity (CVSS 9.3)."}],"references":[{"url":"https://rt-labs.com/wp-content/uploads/2026/10/RRTL-261019-01.pdf","source":"4b71179a-3b92-4a9d-b9fc-af8b8ed579ee"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-111732","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."}