CVE-2023-53377

7.8 highEPSS 0.2%

High (7.8) in linux linux kernel. EPSS 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: cifs: prevent use-after-free by freeing the cfile later In smb2_compound_op we have a possible use-after-free which can cause hard to debug problems later on. This was revealed during stress testing with KASAN enabled kernel. Fixing it by moving the cfile free call to a few lines below, after the usage.

Severity

CVSS 3.1

7.8 high

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 4% of CVEs (scores of 2026-10-31)
CWE: CWE-416
Published: 2025-09-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

linux:linux_kernel

References

https://git.kernel.org/stable/c/33f736187d08f6bc822117629f263b97d3df4165
https://git.kernel.org/stable/c/4fe07d55a5461e66a55fbefb57f85ff0facea32b
https://git.kernel.org/stable/c/b6353518ef8180816e863aa23b06456f395404d6
https://git.kernel.org/stable/c/d017880782cf71f8820ee4a2002843893176501d

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