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CVE-2025-53367— DjVuLibre OOB-Write Vulnerability in MMRDecoder

Quick assessment

Affected
DjvuNet DjVuLibre
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

DjVuLibre是一款DjVu（计算机文件格式）的开源实现，它包括DjVu文件查看器、浏览器插件、DjVu文件解码/编码器和其它实用程序。 DjVuLibre 3.5.29之前版本存在安全漏洞，该漏洞源于MMRDecoder::scanruns方法存在越界写入漏洞，可能导致堆损坏。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.88% · P56

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2025-53367

Vulnerability Information
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Vulnerability Title
DjVuLibre OOB-Write Vulnerability in MMRDecoder
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5
Vulnerability Title
DjVuLibre 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
DjVuLibre是一款DjVu（计算机文件格式）的开源实现，它包括DjVu文件查看器、浏览器插件、DjVu文件解码/编码器和其它实用程序。 DjVuLibre 3.5.29之前版本存在安全漏洞，该漏洞源于MMRDecoder::scanruns方法存在越界写入漏洞，可能导致堆损坏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
DjvuNet DjVuLibre < 3.5.29 -

II. Public POCs for CVE-2025-53367

# POC Description Source Link Shenlong Link
1 None https://github.com/kevinbackhouse/DjVuLibre-poc-CVE-2025-53367 POC Details
2 A simple POC of the CVE-2025-53367, creating a .djvu-file which triggers an OOB-write in the heap https://github.com/ThePhykon/CVE-2025-53367-POC POC Details
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III. Intelligence Information for CVE-2025-53367

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Proof of Concept for CVE-2025-53367 (1)

Mailing List Discussions for CVE-2025-53367 (1)

IV. Related Vulnerabilities

Same product: DjVuLibre
Same weakness: CWE-787

V. Comments for CVE-2025-53367

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