{"id":"CVE-2011-1547","url":"https://www.cyber-defence.io/tools/cve/CVE-2011-1547","generatedAt":"2026-10-27T19:49:25.716Z","title":"Multiple stack consumption vulnerabilities in the kernel in NetBSD 4.0, 5.0 before 5.0.3, and 5.1 before 5.1.1, when IPsec is enabled, allow remote attackers to cause a denial of service (memory corruption and panic) or possibly have unspecified other…","description":"Multiple stack consumption vulnerabilities in the kernel in NetBSD 4.0, 5.0 before 5.0.3, and 5.1 before 5.1.1, when IPsec is enabled, allow remote attackers to cause a denial of service (memory corruption and panic) or possibly have unspecified other impact via a crafted (1) IPv4 or (2) IPv6 packet with nested IPComp headers.","published":"2011-05-09T19:55:04.000Z","lastModified":"2026-06-16T23:29:36.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":6.8,"severity":"MEDIUM","vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P"},"cwe":["CWE-119"],"affected":["netbsd/netbsd"],"epss":{"score":0.05077,"percentile":0.9228,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2011-04-01","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":17097,"kind":"exploit","title":"IPComp - encapsulation Kernel Memory Corruption","url":"https://www.exploit-db.com/exploits/17097","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/bsd/dos/17097.c","file":"exploits/bsd/dos/17097.c","published":"2011-04-01","added":"2011-04-01","updated":"2011-05-08","author":"Tavis Ormandy","type":"dos","platform":"bsd","port":null,"verified":true,"codes":["CVE-2011-1547"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"http://lists.grok.org.uk/pipermail/full-disclosure/2011-April/080031.html"}]},"verdict":{"level":"high","text":"A public exploit is published in Exploit-DB (verified), so the technical barrier is gone even though the severity is medium and EPSS is 5.1%. Treat it as high on anything reachable from the internet."},"changes":[],"references":[{"url":"http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2011-004.txt.asc","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://lists.grok.org.uk/pipermail/full-disclosure/2011-April/080031.html","source":"cve@mitre.org"},{"url":"http://www.kb.cert.org/vuls/id/668220","tags":["US Government Resource"],"source":"cve@mitre.org"},{"url":"http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2011-004.txt.asc","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.grok.org.uk/pipermail/full-disclosure/2011-April/080031.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.kb.cert.org/vuls/id/668220","tags":["US Government Resource"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2011-1547","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."}