UNKNOWN Microsoft

CVE-2025-5994

Cache poisoning via the ECS-enabled Rebirthday Attack

Microsoft Security Update 2025-Jul: Cache poisoning via the ECS-enabled Rebirthday Attack

Affected Products

cbl2 unbound 1.19.1-3 on CBL Mariner 2.0
azl3 unbound 1.19.1-4 on Azure Linux 3.0

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-5994
https://nvd.nist.gov/vuln/detail/CVE-2025-5994

Published: 2025-07-08 · Source: Microsoft · Feed updated: 2026-08-04

This unknown severity vulnerability was published on 2025-07-08 via Microsoft. Affected: cbl2 unbound 1.19.1-3 on CBL Mariner 2.0, azl3 unbound 1.19.1-4 on Azure Linux 3.0.

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