HIGH 7.0 Microsoft PoC
CVE-2025-32023
Redis allows out of bounds writes in hyperloglog commands leading to RCE
Microsoft Security Update 2025-Jul: Redis allows out of bounds writes in hyperloglog commands leading to RCE
Affected Products
- cbl2 redis 6.2.18-2 on CBL Mariner 2.0
- azl3 valkey 8.0.4-1 on Azure Linux 3.0
- cbl2 redis 6.2.18-1 on CBL Mariner 2.0
- azl3 valkey 8.0.3-3 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-32023
- https://nvd.nist.gov/vuln/detail/CVE-2025-32023
This high severity vulnerability with a CVSS score of 7.0 was published on 2025-07-08 via Microsoft. 🚨 A public proof-of-concept exploit is available on GitHub. Affected: cbl2 redis 6.2.18-2 on CBL Mariner 2.0, azl3 valkey 8.0.4-1 on Azure Linux 3.0, cbl2 redis 6.2.18-1 on CBL Mariner 2.0 and 1 more.
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