CVE-2025-53367
CVE-2025-53367 is a high-severity vulnerability with a CVSS 4.0 base score of 8.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.
Key facts
- Severity: High (CVSS 4.0 base score 8.4)
- EPSS exploit prediction: 1% (50th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-19908
- Weakness: CWE-125
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2025-53367?
- 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.
- How severe is CVE-2025-53367?
- CVE-2025-53367 has a CVSS 4.0 base score of 8.4, rated high severity.
- Is CVE-2025-53367 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2025-53367?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2025-53367 have an EU (EUVD) identifier?
- Yes. CVE-2025-53367 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-19908.
- When was CVE-2025-53367 published?
- CVE-2025-53367 was published on 2025-07-03 and last updated on 2026-06-17.
References
- https://github.blog/security/vulnerability-research/cve-2025-53367-an-exploitable-out-of-bounds-write-in-djvulibre
- https://github.com/github/securitylab/tree/main/SecurityExploits/DjVuLibre/MMRDecoder_scanruns_CVE-2025-53367
- https://securitylab.github.com/advisories/GHSL-2025-055_DjVuLibre/
- https://sourceforge.net/p/djvu/djvulibre-git/ci/33f645196593d70bd5e37f55b63886c31c82c3da
- https://www.openwall.com/lists/oss-security/2025/07/03/1
- http://www.openwall.com/lists/oss-security/2025/07/03/1
- http://www.openwall.com/lists/oss-security/2025/07/18/3
- https://lists.debian.org/debian-lts-announce/2025/07/msg00007.html
- https://github.blog/security/vulnerability-research/cve-2025-53367-an-exploitable-out-of-bounds-write-in-djvulibre/
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