HIGH 7.8 Microsoft

CVE-2025-22056

netfilter: nft_tunnel: fix geneve_opt type confusion addition

Microsoft Security Update 2025-Apr: netfilter: nft_tunnel: fix geneve_opt type confusion addition

Affected Products

cbl2 kernel 5.15.176.3-3 on CBL Mariner 2.0
azl3 kernel 6.6.85.1-4 on Azure Linux 3.0
cbl2 kernel 5.15.180.1-1 on CBL Mariner 2.0
cbl2 kernel 5.15.176.3-3 on CBL-Mariner 2.0

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-22056
https://nvd.nist.gov/vuln/detail/CVE-2025-22056

Published: 2025-04-08 · Source: Microsoft · Feed updated: 2026-08-24

This high severity vulnerability with a CVSS score of 7.8 was published on 2025-04-08 via Microsoft. Affected: cbl2 kernel 5.15.176.3-3 on CBL Mariner 2.0, azl3 kernel 6.6.85.1-4 on Azure Linux 3.0, cbl2 kernel 5.15.180.1-1 on CBL Mariner 2.0 and 1 more.

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