CVE-2021-26948
HighPublic PoC
Published: 03 March 2022
Published
03 March 2022
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
0.0014
33.1th percentile
Risk Priority
16
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-26948 is a high-severity Signal Handler Use of a Non-reentrant Function (CWE-479) vulnerability in Htmldoc Project Htmldoc. Its CVSS base score is 7.8 (High).
Operationally, ranked at the 33.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-13730
Vulnerability details
Null pointer dereference in the htmldoc v1.9.11 and before may allow attackers to execute arbitrary code and cause a denial of service via a crafted html file.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
htmldoc project
htmldoc
1.9.11
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.