MEDIUM 5.5 Microsoft
CVE-2025-43853
iwasm vulnerable to filesystem sandbox escape with symlink when using uvwasi feature
Microsoft Security Update 2025-May: iwasm vulnerable to filesystem sandbox escape with symlink when using uvwasi feature
Affected Products
- cbl2 fluent-bit 3.0.6-2
- azl3 fluent-bit 3.1.9-4 on Azure Linux 3.0
- cbl2 fluent-bit 3.0.6-2 on CBL-Mariner 2.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-43853
- https://nvd.nist.gov/vuln/detail/CVE-2025-43853
This medium severity vulnerability with a CVSS score of 5.5 was published on 2025-05-13 via Microsoft. Affected: cbl2 fluent-bit 3.0.6-2, azl3 fluent-bit 3.1.9-4 on Azure Linux 3.0, cbl2 fluent-bit 3.0.6-2 on CBL-Mariner 2.0.
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