What is CVE-2025-39777?

CVE-2025-39777 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2025-09-11.

How severe is CVE-2025-39777?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Linux

CVE-2025-39777

In the Linux kernel, the following vulnerability has been resolved: crypto: acomp - Fix CFI failure due to type punning To avoid a crash when control flow integrity is enabled, make the workspace ("stream") free function use a consistent…

EPSS: 0.001 (2.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linux — versions 42d9f6c774790d290c175e8775ce9f1366438098, 6.16, 0
Linux Linux_kernel

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2025-39777?: CVE-2025-39777 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2025-09-11.
How severe is CVE-2025-39777?: Medium severity. CVSS v3 base score is 5.5 out of 10.