{"cve":"CVE-2026-23364","nvd":{"published":"2026-03-25T11:16:35.547","modified":"2026-10-15T02:18:52.090","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: Compare MACs in constant time\n\nTo prevent timing attacks, MAC comparisons need to be constant-time.\nReplace the memcmp() with the correct function, crypto_memneq().","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","score":7.4},"cwes":[],"references":["https://git.kernel.org/stable/c/2cdc56ed67615ba0921383a688f24415ebe065f3","https://git.kernel.org/stable/c/307afccb751f542246bd5dc68a2c1ffe1a78418c","https://git.kernel.org/stable/c/8a665d733940592e671ec6afadcd0be80a091a80","https://git.kernel.org/stable/c/93c0a22fec914ec4b697e464895a0f594e29fb28","https://git.kernel.org/stable/c/c5794709bc9105935dbedef8b9cf9c06f2b559fa"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:28:18.033120106+00:00"},"epss":{"cve":"CVE-2026-23364","score":0.00416,"percentile":0.35649,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}