{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2026-55706","sourceIdentifier":"cve@mitre.org","published":"2026-06-17T13:20:52.117","lastModified":"2026-07-13T13:54:22.863","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"sppp_pap_input in sys/net/if_spppsubr.c in OpenBSD before 076e2b1 allows authentication bypass via certain zero values for lengths."}],"affected":[{"source":"cve@mitre.org","affectedData":[{"vendor":"OpenBSD","product":"OpenBSD","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"076e2b1c1fc4ac0883a72d3544131ad5cee7adf8","versionType":"git","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"cve@mitre.org","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L","baseScore":5.8,"baseSeverity":"MEDIUM","attackVector":"ADJACENT_NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"LOW"},"exploitabilityScore":1.6,"impactScore":3.7},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","baseScore":8.3,"baseSeverity":"HIGH","attackVector":"ADJACENT_NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.6,"impactScore":6.0}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-06-17T14:32:57.493186Z","id":"CVE-2026-55706","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"cve@mitre.org","type":"Secondary","description":[{"lang":"en","value":"CWE-1284"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*","versionEndIncluding":"7.6","matchCriteriaId":"75D44F13-0468-4BCE-B3E9-58FFF313431F"}]}]}],"references":[{"url":"https://blog.argus-systems.ai/blog/openbsd-pap-27-year-auth-bypass.html","source":"cve@mitre.org","tags":["Third Party Advisory","Exploit"]},{"url":"https://github.com/openbsd/src/commit/076e2b1c1fc4ac0883a72d3544131ad5cee7adf8","source":"cve@mitre.org","tags":["Patch"]},{"url":"https://www.openwall.com/lists/oss-security/2026/06/16/9","source":"cve@mitre.org","tags":["Exploit","Mailing List","Patch","Third Party Advisory"]},{"url":"https://blog.argus-systems.ai/blog/poc-001-pap-bypass.py","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["Exploit"]}]}}