CVE-2026-25955 (GCVE-0-2026-25955)

Vulnerability from cvelistv5 – Published: 2026-02-25 20:32 – Updated: 2026-02-26 15:54
VLAI?
Title
FreeRDP has heap-use-after-free in xf_AppUpdateWindowFromSurface (stale XImage)
Summary
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, `xf_AppUpdateWindowFromSurface` reuses a cached `XImage` whose `data` pointer references a freed RDPGFX surface buffer, because `gdi_DeleteSurface` frees `surface->data` without invalidating the `appWindow->image` that aliases it. Version 3.23.0 fixes the issue.
Severity ?
5.5 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
CWE
Assigner
References
Impacted products
Vendor Product Version
FreeRDP FreeRDP Affected: < 3.23.0
Create a notification for this product.
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                "timestamp": "2026-02-26T15:54:03.703745Z",
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            "privilegesRequired": "NONE",
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            "subConfidentialityImpact": "NONE",
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        "discovery": "UNKNOWN"
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    "dateReserved": "2026-02-09T17:13:54.065Z",
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}


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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.