Out-of-Bounds Write Vulnerability in DjVuLibre by DjVu Group
CVE-2025-53367

8.4HIGH

Key Information:

Vendor

Djvunet

Status
Vendor
CVE Published:
3 July 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-53367?

DjVuLibre, an implementation of the DjVu format for document distribution, is affected by an out-of-bounds write vulnerability prior to version 3.5.29. The issue arises within the MMRDecoder::scanruns method, where the library fails to validate the bounds of memory buffers. This oversight may lead to memory corruption and potentially allow attackers to exploit the vulnerability by executing arbitrary code or causing denial of service. Users are strongly advised to upgrade to version 3.5.29 or later, where this issue has been effectively addressed.

Affected Version(s)

DjVuLibre < 3.5.29

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

References

CVSS V4

Score:
8.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2025-53367 : Out-of-Bounds Write Vulnerability in DjVuLibre by DjVu Group