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CVE-2025-53367

HighPublished

DjVuLibre OOB-Write Vulnerability in MMRDecoder

Published: Jul 3, 2025
Updated: Nov 4, 2025
Assigning CNA: GitHub_M
Evidence observed: Aug 8, 2026

Primary CVSS

8.4/ 10High

nvd · CVSS 4.0

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS probability estimate

0.9%

Low · next 30 days

Percentile: 56.6%
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

DjVuLibre is a GPL implementation of DjVu, a web-centric format for distributing documents and images. Prior to version 3.5.29, the MMRDecoder::scanruns method is affected by an OOB-write vulnerability, because it does not check that the xr pointer stays within the bounds of the allocated buffer. This can lead to writes beyond the allocated memory, resulting in a heap corruption condition. An out-of-bounds read with pr is also possible for the same reason. This issue has been patched in version 3.5.29.

Sources

DjVuLibre-poc-CVE-2025-53367PoC
Proof-of-concept exploit for CVE-2025-53367, a vulnerability in the DjVuLibre library. Demonstrates exploitation of a memory corruption bug in DjVu document processing.
CVE-2025-53367-POCPoC
A simple POC of the CVE-2025-53367, creating a .djvu-file which triggers an OOB-write in the heap

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