CVE-2023-53684

low-risk
Published 2025-10-07

In the Linux kernel, the following vulnerability has been resolved: xfrm: Zero padding when dumping algos and encap When copying data to user-space we should ensure that only valid data is copied over. Padding in structures may be filled with random (possibly sensitve) data and should never be given directly to user-space. This patch fixes the copying of xfrm algorithms and the encap template in xfrm_user so that padding is zeroed.

Do I need to act?

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0.01% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (3)

Affected Vendors

Linux

References (4)

Patch https://git.kernel.org/stable/c/0725daaa9a879388ed312110f62dbd5ea2d75f8f
Patch https://git.kernel.org/stable/c/1a351e26cc010d6991fbbd5701ac16581372e26f
Patch https://git.kernel.org/stable/c/5218af4ad5d8948faac19f71583bcd786c3852df
Patch https://git.kernel.org/stable/c/8222d5910dae08213b6d9d4bc9a7f8502855e624
27
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 9/34 · Low