CVE-2025-14549 OMR on Z processors Exposing a possible buffer over-read problem
A buffer over-read in Eclipse OMR on Z processors can expose memory contents or cause crashes during character translation.
- 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-2025-14549?
CVE-2025-14549 is a medium-severity memory corruption vulnerability in Eclipse OMR, published on 15 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In the Eclipse OMR compiler component, since release 0.7.0, an optimization enabled for Eclipse OpenJ9 consumers of OMR on Z processors incorrectly handles NUL (0x00) characters during the Latin-compatible charset (UTF-8, ISO8859-1, ASCII, etc) to IBM-1047/037 translation sequence. This can cause the output byte array to be truncated, discarding the first NUL byte and all subsequent characters, and thereby exposing a possible buffer over-read problem. This issue is fixed in Eclipse OMR version 0.8.0.
Weakness: CWE-125
Which versions are affected by CVE-2025-14549?
It affects 1 product.
Products include Eclipse Omr.
How do I fix CVE-2025-14549?
No fix has been published for CVE-2025-14549 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-2025-14549 being exploited?
There is no known exploitation of CVE-2025-14549 in the wild and no public exploit code.
Other vulnerabilities in Eclipse OMR
- CVE-2019-11773 Privilege escalation in Eclipse OMR
- CVE-2019-11774 Race condition in Eclipse OMR
- CVE-2025-1471 Eclipse OMR: Buffer overflow vulnerability
- CVE-2026-1188 Memory corruption in Eclipse OMR
- CVE-2026-16243 Eclipse OMR : arraycmp SIMD implementation does not check if the number of bytes to compare is zero
Sources
Also known as GHSA-rw8m-hvvr-gqpp.