Cyber Resilience

CVE-2021-39543

MediumPublic PoC

Published: 20 September 2021

Published
20 September 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score 0.0014 33.6th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-39543 is a medium-severity NULL Pointer Dereference (CWE-476) vulnerability in Pdftools Project Pdftools. Its CVSS base score is 5.5 (Medium).

Operationally, ranked at the 33.6th 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

Vulnerability details

An issue was discovered in pdftools through 20200714. A NULL pointer dereference exists in the function Analyze::AnalyzeRoot() located in analyze.cpp. It allows an attacker to cause Denial of Service.

CWE(s)
CWE-476

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

pdftools project
pdftools
≤ 2020-07-14

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References