CVE-2025-37948
What it is
In the Linux kernel, the following vulnerability has been resolved: arm64: bpf: Add BHB mitigation to the epilogue for cBPF programs A malicious BPF program may manipulate the branch history to influence what the hardware speculates will happen next. On exit from a BPF program, emit the BHB mititgation sequence. This is only applied for 'classic' cBPF programs that are loaded by seccomp.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Record status
- Analyzed
Affected
- Linux Kernel < 5.10.239
- Linux Kernel < 5.15.186
- Linux Kernel < 6.1.139
- Linux Kernel < 6.6.91
- Linux Kernel < 6.12.29
- Linux Kernel < 6.14.7
- Linux Kernel 6.15
- Debian Linux 11.0
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2025-37948.md and follow it. Check whether this project is affected by CVE-2025-37948. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/0dfefc2ea2f29ced2416017d7e5b1253a54c2735
- https://git.kernel.org/stable/c/38c345fd54afd9d6ed8d3fcddf3f6ea23887bf78
- https://git.kernel.org/stable/c/42a20cf51011788f04cf2adbcd7681f02bdb6c27
- https://git.kernel.org/stable/c/852b8ae934b5cbdc62496fa56ce9969aa2edda7f
- https://git.kernel.org/stable/c/8fe5c37b0e08a97cf0210bb75970e945aaaeebab
- https://git.kernel.org/stable/c/993f63239c219696aef8887a4e7d3a16bf5a8ece
- https://git.kernel.org/stable/c/c6a8735d841bcb7649734bb3a787bb174c67c0d8
References
- https://git.kernel.org/stable/c/0dfefc2ea2f29ced2416017d7e5b1253a54c2735
- https://git.kernel.org/stable/c/38c345fd54afd9d6ed8d3fcddf3f6ea23887bf78
- https://git.kernel.org/stable/c/42a20cf51011788f04cf2adbcd7681f02bdb6c27
- https://git.kernel.org/stable/c/852b8ae934b5cbdc62496fa56ce9969aa2edda7f
- https://git.kernel.org/stable/c/8fe5c37b0e08a97cf0210bb75970e945aaaeebab
- https://git.kernel.org/stable/c/993f63239c219696aef8887a4e7d3a16bf5a8ece
- https://git.kernel.org/stable/c/c6a8735d841bcb7649734bb3a787bb174c67c0d8
- https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html