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CVE-2026-25952
Use-After-Free in CVE-2026-25952 (CVE-2026-25952)
Summary
vulnerability in CVE-2026-25952 (CVE-2026-25952). Risk of unauthorized operations or information disclosure. Exploitable via ``xf_SetWindowMinMaxInfo``.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-25952** has been found in CVE-2026-25952.
Attackers can target a specific entry point like ``xf_SetWindowMinMaxInfo`` over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "CVE-2026-25952 CVE-2026-25952" on the vendor's site.
CVE-2026-25952 (CVE-2026-25952) — CWE-416 /
Attack surface: `xf_SetWindowMinMaxInfo` / `xfAppWindow` / `xf_rail_get_window` / `xf_rail_server_min_max_info`
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
❓ What is the problem
**use-after-free** (CWE-416) exists in CVE-2026-25952. Attackers reach the vulnerable code path via ``xf_SetWindowMinMaxInfo`` without authentication.
📍 Affected scope
CVE-2026-25952 — . Attack surface: `xf_SetWindowMinMaxInfo` / `xfAppWindow` / `xf_rail_get_window` / `xf_rail_server_min_max_info`.
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to the patched release per vendor advisory.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
Audit SBOM/dependencies for affected components.依存マニフェストで影響コンポーネントを特定する。
-
7Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 3 と同じログクエリでアラート再発が無いか継続監視。
References
- advisory https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25952.json
- advisory https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-cgqm-cwjg-7w9x
- advisory https://nvd.nist.gov/vuln/detail/CVE-2026-25952
- patch https://github.com/FreeRDP/FreeRDP/commit/1994e9844212a6dfe0ff12309fef520e888986b5
- web https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.c#L1167
- web https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.c#L1174
- web https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.c#L1178
- web https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.c#L1230-L1238
- web https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.c#L643
- web https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_window.c#L1111
- web https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_window.c#L1128
- web https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_window.c#L1394
- web https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_window.c#L1428