CVE-2025-65079 Heap-based buffer overflow vulnerability in Postscript interpreter
Heap-based buffer overflow in Lexmark Postscript interpreter allows arbitrary code execution as an unprivileged user.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-65079?
CVE-2025-65079 is a medium-severity memory corruption vulnerability in Lexmark CSTAT, CXTAT, MSLBD, MXLBD, CSLBL, CXLBL, CSLBN, CXLBN, CSTMH, CXTMH, CSTPP, CXTPP, MSLSG, MXLSG, published on 3 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A heap-based buffer overflow vulnerability has been identified in the Postscript interpreter in various Lexmark devices. This vulnerability can be leveraged by an attacker to execute arbitrary code as an unprivileged user.
Weakness: CWE-122
Which versions are affected by CVE-2025-65079?
How do I fix CVE-2025-65079?
No fix has been published for CVE-2025-65079 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-65079 being exploited?
There is no known exploitation of CVE-2025-65079 in the wild and no public exploit code.
Sources
Also known as GHSA-99r6-qcrg-9jhf.