CVE-2025-1400 Out-of-bounds Read in libplctag library
An out-of-bounds read in libplctag allows attackers to overread buffers via network, potentially exposing sensitive data or causing crashes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-1400?
CVE-2025-1400 is a low-severity memory corruption vulnerability in libplctag, published on 7 May 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Out-of-bounds Read vulnerability in unpack_response (conn.c) in libplctag from 2.0 through 2.6.3 allows Overread Buffers via network.
Weakness: CWE-125
Which versions are affected by CVE-2025-1400?
How do I fix CVE-2025-1400?
No fix has been published for CVE-2025-1400 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-2025-1400 being exploited?
There is no known exploitation of CVE-2025-1400 in the wild and no public exploit code.
Sources
Also known as GHSA-grvj-cc9v-jh9r.