---
id: CVE-2026-71979
title: >-
  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…
summary: >-
  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…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-121
published: '2026-08-17'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T20:06:30.133'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-71979'
references:
  - url: >-
      https://github.com/indilib/indi/commit/96bbd7f564bbb128a129019e44eadd40dd49cff9
    label: disclosure@vulncheck.com
  - url: 'https://github.com/indilib/indi/issues/2472'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/indi-indiserver-stack-buffer-overflow-via-xml-tag-parsing
    label: disclosure@vulncheck.com
  - url: 'https://github.com/indilib/indi/issues/2472'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00584
epssPercentile: 0.45591
ingestedAt: '2026-09-24T20:51:40.204Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.