Known exploited · Linux
CVE-2013-2596: Linux Kernel Integer Overflow Vulnerability
What it is
Linux kernel fb_mmap function in drivers/video/fbmem.c contains an integer overflow vulnerability that allows for privilege escalation.
- Vendor
- Linux
- Product
- Kernel
- Added to KEV
- September 15, 2022
- CISA due date
- October 6, 2022
- Ransomware use
- Unknown
- Weakness
- CWE-189: Numeric Errors
What CISA requires
Apply updates per vendor instructions.
Forensic triage
No
What to do now
- Find every instance of Kernel you run, including the forgotten ones, and check its version against the vendor advisory.
- Apply the vendor's fix or mitigation, before October 6, 2022 if you are bound by CISA's deadline, sooner if it faces the internet.
- Assume it was tried against you already: look for signs of exploitation from the date it was added, not from the day you patched.
References
H2 Security
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Start freeSource: CISA Known Exploited Vulnerabilities Catalog (public domain), catalog version 2026.10.01.