Buffer overflow in Indilib Indi
CVE-2026-71979
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.
Vulnerability class: Buffer Overflow
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Indilib Indi — versions 0, 96bbd7f564bbb128a129019e44eadd40dd49cff9
Weakness classification (CWE)
References
- disclosure@vulncheck.com (issue-tracking)
- disclosure@vulncheck.com (patch)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-71979?
- CVE-2026-71979 is a high-severity vulnerability in Indilib Indi, classified under Stack-based Buffer Overflow. CVSS score: 7.5/10. Published 2026-08-17.
- How severe is CVE-2026-71979?
- High severity. CVSS v3 base score is 7.5 out of 10.