Critical severity9.8NVD Advisory· Published Sep 7, 2021· Updated Jun 17, 2026

CVE-2021-40540

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Ulfius HTTP Framework/Ulfius HTTP Frameworkllm-create
Range: <2.7.4
Ulfius/Ulfius HTTP Frameworkdescription
Ulfius Project/Ulfius
cpe:2.3:a:ulfius_project:ulfius:*:*:*:*:*:*:*:*
Range: <2.7.4
osv-coords
pkg:rpm/opensuse/ulfius&distro=openSUSE%20Tumbleweed
Range: < 2.7.4-1.2

Patches

Vulnerability mechanics

References

github.com/babelouest/ulfius/commit/c83f564c184a27145e07c274b305cabe943bbfaanvdPatchThird Party Advisory
github.com/babelouest/ulfius/compare/v2.7.3...v2.7.4nvdPatchThird Party Advisory
packetstormsecurity.com/files/164152/Ulfius-Web-Framework-Remote-Memory-Corruption.htmlnvdExploitThird Party AdvisoryVDB Entry

News mentions

No linked articles in our index yet.

cvss	0.637
epss	0.002
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000