{"cve":"CVE-2025-68816","nvd":{"published":"2026-01-13T16:16:03.870","modified":"2026-10-19T19:17:06.833","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: fw_tracer, Validate format string parameters\n\nAdd validation for format string parameters in the firmware tracer to\nprevent potential security vulnerabilities and crashes from malformed\nformat strings received from firmware.\n\nThe firmware tracer receives format strings from the device firmware and\nuses them to format trace messages. Without proper validation, bad\nfirmware could provide format strings with invalid format specifiers\n(e.g., %s, %p, %n) that could lead to crashes, or other undefined\nbehavior.\n\nAdd mlx5_tracer_validate_params() to validate that all format specifiers\nin trace strings are limited to safe integer/hex formats (%x, %d, %i,\n%u, %llx, %lx, etc.). Reject strings containing other format types that\ncould be used to access arbitrary memory or cause crashes.\nInvalid format strings are added to the trace output for visibility with\n\"BAD_FORMAT: \" prefix.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-134"],"references":["https://git.kernel.org/stable/c/38ac688b52ef26a88f8bc4fe26d24fdd0ff91e5d","https://git.kernel.org/stable/c/45bd283b1d69e2c97cddcb9956f0e0261fc4efd7","https://git.kernel.org/stable/c/768d559f466cdd72849110a7ecd76a21d52dcfe3","https://git.kernel.org/stable/c/8ac688c0e430dab19f6a9b70df94b1f635612c1a","https://git.kernel.org/stable/c/8c35c2448086870509ede43947845be0833251f0"],"products":[],"source":"nvd","synced_at":"2026-10-21T03:43:09.190223697+00:00"},"epss":{"cve":"CVE-2025-68816","score":0.00235,"percentile":0.14237,"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."]}