What’s Vulnerable › Vulnerabilities

CVE-2025-54874: OpenJPEG allows OOB heap memory write in opj_jp2_read_header

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-08-05 · updated 2026-06-17
• Weakness: CWE-457

Description

OpenJPEG is an open-source JPEG 2000 codec. In OpenJPEG from 2.5.1 through 2.5.3, a call to opj_jp2_read_header may lead to OOB heap memory write when the data stream p_stream is too short and p_image is not initialized.

Affected products

• uclouvain openjpeg: through 2.5.3

References

• https://github.com/uclouvain/openjpeg/commit/f809b80c67717c152a5ad30bf06774f00da4fd2d
• https://github.com/uclouvain/openjpeg/pull/1573
• https://securitylab.github.com/advisories/GHSL-2025-057_OpenCV

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