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CVE-2026-58049 is an incorrect bounds-validation vulnerability in FFmpeg's RASC video decoder, in the decode_dlta() routine. The decoder performs 32-bit reads and writes at the row cursor before the NEXT_LINE row-boundary check, and validates the DLTA region in pixel units rather than byte units. When decoding a crafted RASC stream on a PAL8 frame, a DLTA run can access bytes beyond the row allocation, producing a bitstream-controlled heap out-of-bounds write and an adjacent out-of-bounds read. The resulting memory corruption occurs while libavcodec processes the malicious media stream.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
18 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An incorrect-validation flaw in the RASC video decoder causing an out-of-bounds heap write and memory corruption in affected SUSE SLES15 packages.
An FFmpeg RASC video-decoder validation flaw that can cause an out-of-bounds heap write and memory corruption.
A network-accessible FFmpeg-related vulnerability remediated by Ubuntu USN-8750-1, with low attack complexity, no privileges or user interaction required, and high availability impact according to the supplied CVSS v4 vector.
A Unity Linux/UOS Server vulnerability tracked as CVE-2026-58049. The supplied CVSS vectors characterize it as a network-reachable, low-complexity issue requiring no privileges; the CVSS v3 vector indicates user interaction is required and availability impact is high.
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.