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CVE-2024-26800: tls: fix use-after-free on failed backlog decryption

highCVSS 7.8CVE-2024-26800

CSIRTS triage

vendor: Linuxproduct: Linux KernelMemory corruption
What
Use-after-free vulnerability in the kernel TLS subsystem during failed backlog decryption.
Who is affected
Linux systems with kernel TLS offload enabled.
Urgency
High priority; use-after-free in kernel memory can lead to denial of service or privilege escalation.
Action
Apply kernel patch fixing the use-after-free in TLS backlog decryption error handling.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
high — CVSS 7.8
Published
2026-08-06
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-26800

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2024-26800coverage & exploitation statusNVD · CVE.org

Recent advisories for tls

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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