CVE-2021-40540

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

ulfius_uri_logger in Ulfius HTTP Framework before 2.7.4 omits con_info initialization and a con_info->request NULL check for certain malformed HTTP requests.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://packetstormsecurity.com/files/164152/Ulfius-Web-Framework-Remote-Memory-Corruption.htmlExploit, Third Party Advisory, VDB Entry
https://github.com/babelouest/ulfius/commit/c83f564c184a27145e07c274b305cabe943bbfaaPatch, Third Party Advisory
https://github.com/babelouest/ulfius/compare/v2.7.3...v2.7.4Patch, Third Party Advisory
http://packetstormsecurity.com/files/164152/Ulfius-Web-Framework-Remote-Memory-Corruption.htmlExploit, Third Party Advisory, VDB Entry
https://github.com/babelouest/ulfius/commit/c83f564c184a27145e07c274b305cabe943bbfaaPatch, Third Party Advisory
https://github.com/babelouest/ulfius/compare/v2.7.3...v2.7.4Patch, Third Party Advisory

Timeline

Published: Sep 7, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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