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CVE-2025-64505 is a heap buffer over-read in libpng before version 1.6.51. The flaw is in png_do_quantize, which fails to validate palette_lookup array bounds against externally supplied image data. A crafted PNG containing malformed, out-of-range palette indices can cause out-of-bounds heap memory access during image processing.
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No public exploit code observed for this vulnerability.
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34 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A moderate-severity vulnerability tracked as CVE-2025-64505. Based on the supplied CVSS vector, successful exploitation requires local access and user interaction, has low confidentiality impact and high availability impact; the affected component is not identified in the content.
A moderate-severity locally exploitable vulnerability affecting an AlmaLinux 9.6 package covered by a TuxCare/CLSA security advisory. Successful exploitation requires user interaction and could cause high availability impact and low confidentiality impact; the underlying affected package and precise flaw type are not specified.
A vulnerability addressed by the Huawei EulerOS SA-2026-3517 security update; no technical vulnerability details are provided.
A heap buffer over-read in libpng png_do_quantize caused by failure to validate palette_lookup bounds against externally supplied palette indices; fixed in 1.6.51.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.