VULNERABILITY INTELLIGENCE
CVE-2026-38821
CVSS score7.1 HIGH
EPSS probability0.31%
CISA KEVNot currently listed
Published2026-08-28
Last modified2026-09-09
CVSS vectorCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Description
A heap-based buffer overflow vulnerability exists in openNDS before 11.0.0 that allows an unauthenticated attacker on the captive portal network to crash the openNDS daemon (denial of service) and potentially achieve remote code execution. This is in http_microhttpd.c.
Weakness classification
- cve@mitre.org: CWE-122