CVE-2026-71979: Indilib Indi

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

INDI (Instrument Neutral Distributed Interface) indiserver through 2.2.4.2, fixed in commit 96bbd7f, contains a stack buffer overflow vulnerability that allows unauthenticated remote attackers to crash the daemon by sending malformed XML with mismatched tags whose names exceed 1024 bytes. Attackers can send a single TCP packet on port 7624 with mismatched XML tags to trigger an unbounded sprintf() write into a fixed 1024-byte stack buffer in MsgQueue.cpp, terminating the daemon and disrupting all active client and driver sessions.

Affected products

• Indilib Indi: up to and including 2.2.4.2

Published 2026-08-17. Last modified 2026-09-24.