HIGH 7.8 Microsoft
CVE-2025-21759
ipv6: mcast: extend RCU protection in igmp6_send()
Microsoft Security Update 2025-Feb: ipv6: mcast: extend RCU protection in igmp6_send()
Affected Products
- cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0
- azl3 kernel 6.6.78.1-3 on Azure Linux 3.0
- azl3 kernel 6.6.82.1-1 on Azure Linux 3.0
- cbl2 kernel 5.15.200.1-1 on CBL Mariner 2.0
- cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21759
- https://nvd.nist.gov/vuln/detail/CVE-2025-21759
This high severity vulnerability with a CVSS score of 7.8 was published on 2025-02-11 via Microsoft. EPSS score: 7.4% (top 6% of all CVEs by exploitation probability). Affected: cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0, azl3 kernel 6.6.78.1-3 on Azure Linux 3.0, azl3 kernel 6.6.82.1-1 on Azure Linux 3.0 and 2 more.
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