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CVE-2023-51698

CriticalPublished

Atril's CBT comic book parsing vulnerable to Remote Code Execution

Published: Jan 12, 2024
Updated: Jun 17, 2025
Assigning CNA: GitHub_M
Evidence observed: Aug 25, 2026

Primary CVSS

9.6/ 10Critical

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L

EPSS probability estimate

2.4%

Low · next 30 days

Percentile: 82.9%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Atril is a simple multi-page document viewer. Atril is vulnerable to a critical Command Injection Vulnerability. This vulnerability gives the attacker immediate access to the target system when the target user opens a crafted document or clicks on a crafted link/URL using a maliciously crafted CBT document which is a TAR archive. A patch is available at commit ce41df6.

Sources

atril_cbt-inject-exploitExploit
CVE-2023-44452, CVE-2023-51698: CBT File Parsing Argument Injection that affected Popular Linux Distros

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