What’s Vulnerable › Vulnerabilities

CVE-2026-71979: INDI indiserver 2.2.4.2 Stack Buffer Overflow via XML Tag Parsing

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-17 · updated 2026-10-23
• Weakness: CWE-121

Description

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: through 2.2.4.2

References

• https://github.com/indilib/indi/commit/96bbd7f564bbb128a129019e44eadd40dd49cff9
• https://github.com/indilib/indi/issues/2472
• https://www.vulncheck.com/advisories/indi-indiserver-stack-buffer-overflow-via-xml-tag-parsing
• https://github.com/indilib/indi/issues/2472

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