CVE-2021-22555 — Linux Kernel Heap Out-of-Bounds Write Vulnerability
Severity: Critical · Kind: Vulnerability
What it is
AI offline placeholder summary for: Title: CVE-2021-22555 — Linux Kernel Heap Out-of-Bounds Write Vulnerability Kind.
Who this affects
AI summarisation is currently disabled — see the source link for the full upstream advisory.
What to do
Re-run summarisation from /admin/threats once ANTHROPIC_API_KEY is configured.
From the source
Linux Kernel. Linux Kernel contains a heap out-of-bounds write vulnerability that could allow an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space. Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Vulnerability facts
- CVE
- CVE-2021-22555
- On CISA KEV since
- 2025-10-06
- Ransomware use
- Unknown
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Plain-English summaries are AI-generated and reviewed for tone, not technical accuracy. For incident response, always rely on the original source linked above.