{"cve":"CVE-2025-37846","nvd":{"published":"2025-05-09T07:16:05.430","modified":"2026-06-17T09:15:33.403","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\narm64: mops: Do not dereference src reg for a set operation\n\nThe source register is not used for SET* and reading it can result in\na UBSAN out-of-bounds array access error, specifically when the MOPS\nexception is taken from a SET* sequence with XZR (reg 31) as the\nsource. Architecturally this is the only case where a src/dst/size\nfield in the ESR can be reported as 31.\n\nPrior to 2de451a329cf662b the code in do_el0_mops() was benign as the\nuse of pt_regs_read_reg() prevented the out-of-bounds access.","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:N/A:H","score":7.1},"cwes":["CWE-125"],"references":["https://git.kernel.org/stable/c/43267d934eacff6c70e15545d804ebbcab8a0bf5","https://git.kernel.org/stable/c/5f6022a74147675124b781fdc056b291850e7786","https://git.kernel.org/stable/c/a13bfa4fe0d6949cea14718df2d1fe84c38cd113","https://git.kernel.org/stable/c/eec737e17e5567e08148550a7f1d94d495b9fb17"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:01:22.920403922+00:00"},"epss":{"cve":"CVE-2025-37846","score":0.00288,"percentile":0.21411,"date":"2026-10-31"},"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."]}