CVE-2021-39543

5.5 MEDIUM

An issue was discovered in pdftools through 20200714

Published: 2021-09-20 · Last updated: 2026-06-17

Severity and scoring

CVSS: 5.5 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE: CWE-476

Affected products

Vendor	Product
pdftools_project	pdftools

Description

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.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-39543
[Exploit reference]https://github.com/leonhad/pdftools/issues/1
[Exploit reference]https://github.com/leonhad/pdftools/issues/1

Related CVEs

Same vendor

CVE-2021-39542 — An issue was discovered in pdftools through 20200714 (5.5 MEDIUM)
CVE-2021-39541 — An issue was discovered in pdftools through 20200714 (5.5 MEDIUM)
CVE-2021-39540 — An issue was discovered in pdftools through 20200714 (7.8 HIGH)
CVE-2021-39539 — An issue was discovered in pdftools through 20200714 (5.5 MEDIUM)
CVE-2021-39538 — An issue was discovered in pdftools through 20200714 (5.5 MEDIUM)

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