MEDIUM 5.5 Microsoft PoC
CVE-2025-39946
tls: make sure to abort the stream if headers are bogus
Microsoft Security Update 2025-Oct: tls: make sure to abort the stream if headers are bogus
Affected Products
- azl3 kernel 6.6.96.2-2 on Azure Linux 3.0
- azl3 kernel 6.6.104.2-4 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-39946
- https://nvd.nist.gov/vuln/detail/CVE-2025-39946
This medium severity vulnerability with a CVSS score of 5.5 was published on 2025-10-14 via Microsoft. 🚨 A public proof-of-concept exploit is available on GitHub. EPSS score: 9.6% (top 5% of all CVEs by exploitation probability). Affected: azl3 kernel 6.6.96.2-2 on Azure Linux 3.0, azl3 kernel 6.6.104.2-4 on Azure Linux 3.0.
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