{"id":"CVE-2026-74341","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-74341","summary":"wifi: wcn36xx: fix heap overflow from oversized firmware HAL response","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wcn36xx: fix heap overflow from oversized firmware HAL response\n\nThe firmware response dispatcher copies all synchronous HAL responses\ninto the 4096-byte hal_buf without validating the response length. A\nresponse exceeding WCN36XX_HAL_BUF_SIZE causes a heap buffer overflow\nwith firmware-controlled content.\n\nAdd a bounds check on the response length.","published":"2026-08-15T05:58:31.238Z","modified":"2026-08-18T03:56:56.811430933Z","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"6.1.178"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/15545ee71301e82d26d9a31b407ed0019eb62a60"},{"type":"WEB","url":"https://git.kernel.org/stable/c/18813b90032bfaafb225906a4d2b51be4dfc02c3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/1b5d8a248c3afa640bcc99fa95abcd1e36f3ee18"},{"type":"WEB","url":"https://git.kernel.org/stable/c/88a240d86d3d64521f9194abe185ac71cc74d0bd"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cfc67aee0c83e7f5d43a1dad3e25c789e9cc1d92"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dae9cadf0925f1cbfb71306d60490890df3870a6"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74341.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74341"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-18T03:56:56.811430933Z"}}