CVE-2026-123200

High

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.

SeverityHigh

CVSS7.5

Exploit probability—

ProductVRPN

PublishedNov 5, 2026

First seenNov 5, 2026

Weakness typeCWE-129CWE-129

How to fix

Patches

github.com/vrpn/vrpn/commit/0da5b0b71e06e8c318a4e674c84caee12251a782
github.com/vrpn/vrpn/commit/c893b583d928fd17d756b39271b2eae71766e7f2

Affected products

Product	Affected versions	Fixed in
VRPN VRPN	v ≤ 07.36	—

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.