{"cve":"CVE-2026-80706","nvd":{"published":"2026-08-28T08:16:56.150","modified":"2026-10-16T20:18:07.340","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: softing: fw_parse(): validate firmware record spans\n\nfw_parse() reads a fixed record header, a firmware-provided payload,\nand a trailing checksum without knowing the end of the firmware blob. A\ntruncated record can therefore make those reads exceed the blob.\n\nThe same record also supplies addresses and lengths for writes into\nDPRAM. The generic loader uses wrap-prone mixed signed arithmetic for its\nbounds check, while the application loader does not bound the staging\ncopy at all.\n\nPass the firmware end to the parser and validate the full source record.\nUse a signed wide offset for generic DPRAM records and validate the\napplication staging span against the mapped DPRAM before copying.","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":[],"references":["https://git.kernel.org/stable/c/2ee477e541a6d5e434d6a4041c6b677ab42e1d82","https://git.kernel.org/stable/c/808ed899dcf8bdef66894fda5eb7ee4bb0eb8dc1","https://git.kernel.org/stable/c/84c850b08fc0d671c245144b619683129b55690a","https://git.kernel.org/stable/c/856d6cb04e5407523566b075841dcd6423757d1c","https://git.kernel.org/stable/c/ad331e26fd213a19fee0de18cdacd67b7ff5b478"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:50.842544443+00:00"},"epss":{"cve":"CVE-2026-80706","score":0.0012,"percentile":0.01842,"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."]}