CVE-2025-37963: Debian Linux

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: arm64: bpf: Only mitigate cBPF programs loaded by unprivileged users Support for eBPF programs loaded by unprivileged users is typically disabled. This means only cBPF programs need to be mitigated for BHB. In addition, only mitigate cBPF programs that were loaded by an unprivileged user. Privileged users can also load the same program via eBPF, making the mitigation pointless.

Affected products

• Debian Debian Linux: version 11.0 only
• Linux Linux Kernel: before 5.10.239 (fixed in 5.10.239); from 5.11, before 5.15.186 (fixed in 5.15.186); from 5.16, before 6.1.139 (fixed in 6.1.139); from 6.2, before 6.6.91 (fixed in 6.6.91); from 6.7, before 6.12.29 (fixed in 6.12.29); from 6.13, before 6.14.7 (fixed in 6.14.7); …

Published 2025-05-20. Last modified 2026-06-17.