CVE-2025-53367

Public Exploit
DjVuLibre OOB-Write Vulnerability in MMRDecoder

Description

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.

Category

8.4
CVSS
Severity: High
CVSS 4.0 •
EPSS 0.01%
Affected: DjvuNet DjVuLibre
Published at:
Updated at:

References

Link Tags
https://securitylab.github.com/advisories/GHSL-2025-055_DjVuLibre/
https://github.blog/security/vulnerability-research/cve-2025-53367-an-exploitable-out-of-bounds-write-in-djvulibre
https://sourceforge.net/p/djvu/djvulibre-git/ci/33f645196593d70bd5e37f55b63886c31c82c3da
https://www.openwall.com/lists/oss-security/2025/07/03/1
https://github.blog/security/vulnerability-research/cve-2025-53367-an-exploitable-out-of-bounds-write-in-djvulibre/

Frequently Asked Questions

What is the severity of CVE-2025-53367?
CVE-2025-53367 has been scored as a high severity vulnerability.
How to fix CVE-2025-53367?
To fix CVE-2025-53367, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-53367 being actively exploited in the wild?
It is possible that CVE-2025-53367 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-53367?
CVE-2025-53367 affects DjvuNet DjVuLibre.
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