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CVE-2026-6192— uclouvain openjpeg pi.c opj_pi_initialise_encode integer overflow

Quick assessment

Affected
uclouvain openjpeg
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenJPEG是Université catholique de Louvain开源的一款基于C语言的开源JPEG2000编码解码器。 OpenJPEG 2.5.4及之前版本存在输入验证错误漏洞，该漏洞源于src/lib/openjp2/pi.c文件中函数opj_pi_initialise_encode存在整数溢出。

CVSS 3.3 · Low EPSS 0.16% · P5

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 5

VendorProduct Version RangeStatus
uclouvain openjpeg 2.5.0 affected
2.5.1 affected
2.5.2 affected
2.5.3 affected
2.5.4 affected
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I. Basic Information for CVE-2026-6192

Vulnerability Information
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Vulnerability Title
uclouvain openjpeg pi.c opj_pi_initialise_encode integer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was identified in uclouvain openjpeg up to 2.5.4. This impacts the function opj_pi_initialise_encode in the library src/lib/openjp2/pi.c. The manipulation leads to integer overflow. The attack must be carried out locally. The exploit is publicly available and might be used. The identifier of the patch is 839936aa33eb8899bbbd80fda02796bb65068951. It is suggested to install a patch to address this issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5
Vulnerability Title
OpenJPEG 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenJPEG是Université catholique de Louvain开源的一款基于C语言的开源JPEG2000编码解码器。 OpenJPEG 2.5.4及之前版本存在输入验证错误漏洞，该漏洞源于src/lib/openjp2/pi.c文件中函数opj_pi_initialise_encode存在整数溢出。
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
uclouvain openjpeg 2.5.0 cpe:2.3:a:uclouvain:openjpeg:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-6192

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III. Intelligence Information for CVE-2026-6192

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Patches & Fixes for CVE-2026-6192 (1)

Proof of Concept for CVE-2026-6192 (1)

IV. Related Vulnerabilities

Same product: openjpeg
Same vendor: uclouvain
Same weakness: CWE-190

V. Comments for CVE-2026-6192

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