CVE-2021-22555 - Linux Kernel Heap Out-of-Bounds Write Vulnerability
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.
- Severity
- critical
- Product
- Linux Kernel
- Published
- 2025-10-06
- EPSS
- 0.787
- CISA KEV
- Known exploited
- Ransomware
- Known campaign use
References and validation
- https://github.com/search?q=CVE-2021-22555&type=repositories
- https://nvd.nist.gov/vuln/detail/CVE-2021-22555
Entries are refreshed from CISA KEV and FIRST EPSS. Validate applicability before testing.