CVE-2021-22555

Linux Kernel Heap Out-of-Bounds Write Vulnerability
78.7%
EPSS
100%
Percentile
Yes
Known exploited
0
APAC news · 90d
Summary

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.

Vendor
Linux
Product
Kernel
Added to KEV
Oct 6, 2025
Remediation due
Oct 27, 2025 (US federal deadline)
Ransomware use
Not known
Weakness
CWE-787
EPSS
78.7% as of Nov 12
In the news
  • No Asia-Pacific article names this CVE yet.
Linked
Actors named alongside it:
none
Incidents exploiting it:
  • none recorded