{"cve":"CVE-2025-39962","nvd":{"published":"2025-10-09T13:15:32.390","modified":"2026-10-19T21:10:00.160","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: Fix untrusted unsigned subtract\n\nFix the following Smatch static checker warning:\n\n   net/rxrpc/rxgk_app.c:65 rxgk_yfs_decode_ticket()\n   warn: untrusted unsigned subtract. 'ticket_len - 10 * 4'\n\nby prechecking the length of what we're trying to extract in two places in\nthe token and decoding for a response packet.\n\nAlso use sizeof() on the struct we're extracting rather specifying the size\nnumerically to be consistent with the other related statements.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-787"],"references":["https://git.kernel.org/stable/c/2429a197648178cd4dc930a9d87c13c547460564","https://git.kernel.org/stable/c/71571e187106631a8127f2dde780f35caa358d33"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-21T03:43:09.190223697+00:00"},"epss":{"cve":"CVE-2025-39962","score":0.00246,"percentile":0.15735,"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."]}