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CVE-2026-67291 is a heap out-of-bounds read in FreeRDP versions through 3.28.0, fixed in 3.29.0. The flaw is in glyph-cache fragment handling in update_process_glyph_fragments() and glyph_cache_fragment_put(). When processing an RDP GLYPH_FRAGMENT_ADD update, FreeRDP reads a server-controlled one-byte declared fragment size but does not validate that the declared size is within the remaining received-buffer length before allocating and copying the fragment. A malicious RDP server can send a truncated fragment update with an oversized declared size, causing the client to read beyond the allocated heap buffer.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
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.
A vulnerability addressed by the referenced Oracle Linux FreeRDP update; no technical flaw details are provided.
A named vulnerability covered by Miracle Linux AXSA-2026-1756 for the listed FreeRDP and/or WinPR packages; no technical details or CVSS metrics are provided in the content.
A vulnerability addressed by Oracle Linux advisory ELSA-2026-625710 for FreeRDP/WinPR-related packages on Oracle Linux 8.
A vulnerability referenced by the Miracle Linux AXSA-2026-1752 security-check plugin; no technical impact details are provided.
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.