CVE-2026-123200 VRPN through 07.36 Out-of-bounds Write via SENDER_DESCRIPTION/TYPE_DESCRIPTION length index
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-123200?
CVE-2026-123200 is a high-severity vulnerability in VRPN, published on 5 Nov 2026.
Official description
VRPN through 07.36 contains an out-of-bounds stack write vulnerability in vrpn_Endpoint::handle_sender_message() and handle_type_message() that allows unauthenticated remote peers to write outside a stack buffer via an unchecked length index. Attackers can connect, complete the version-cookie exchange, and send a SENDER_DESCRIPTION or TYPE_DESCRIPTION message with an out-of-range or negative index to crash the process.
Weakness: CWE-129
Which versions are affected by CVE-2026-123200?
How do I fix CVE-2026-123200?
No fix has been published for CVE-2026-123200 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-123200 being exploited?
There is no known exploitation of CVE-2026-123200 in the wild and no public exploit code.
Sources
Also known as GHSA-x3v7-qh5m-v37c.