{"id":"CVE-2023-44466","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-44466","generatedAt":"2026-11-04T22:55:01.260Z","title":"There is an integer signedness error, leading to a buffer overflow and remote code execution via HELLO or one of the AUTH frames.","description":"An issue was discovered in net/ceph/messenger_v2.c in the Linux kernel before 6.4.5. There is an integer signedness error, leading to a buffer overflow and remote code execution via HELLO or one of the AUTH frames. This occurs because of an untrusted length taken from a TCP packet in ceph_decode_32.","published":"2023-09-29T06:15:11.000Z","lastModified":"2026-06-17T06:27:42.000Z","status":"Analyzed","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-120"],"affected":["linux/linux kernel"],"epss":{"score":0.4489,"percentile":0.98779,"date":"2026-11-03","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 44.9%, higher than 99% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a282a2f10539dce2aa619e71e1817570d557fc97","tags":["Mailing List","Patch"],"source":"cve@mitre.org"},{"url":"https://github.com/google/security-research/security/advisories/GHSA-jg27-jx6w-xwph","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/torvalds/linux/commit/a282a2f10539dce2aa619e71e1817570d557fc97","tags":["Patch"],"source":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20231116-0003/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.spinics.net/lists/ceph-devel/msg57909.html","tags":["Mailing List","Patch"],"source":"cve@mitre.org"},{"url":"https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a282a2f10539dce2aa619e71e1817570d557fc97","tags":["Mailing List","Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/google/security-research/security/advisories/GHSA-jg27-jx6w-xwph","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/torvalds/linux/commit/a282a2f10539dce2aa619e71e1817570d557fc97","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20231116-0003/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.spinics.net/lists/ceph-devel/msg57909.html","tags":["Mailing List","Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-44466","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."}