CVE-2025-26671 — Use After Free in Microsoft Windows Server 2008 R2 Service Pack 1

CWE-416 — Use After FreeCWE-591 — Sensitive Data Storage in Improperly Locked MemoryCWE-362 — Race Condition9 documents7 sources
Severity
8.1HIGHNVD
EPSS
0.4%
top 37.50%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
9
Microsoft Windows Server 2008 R2 Service Pack 1Microsoft Windows Server 2012Microsoft Windows Server 2012 R2+6 more
Timeline
PublishedApr 8
Latest updateApr 9

Description

Use after free in Windows Remote Desktop Services allows an unauthorized attacker to execute code over a network.

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 2.2 | Impact: 5.9

Affected Packages8 packages

▶NVDmicrosoft/windows< 10.0.14393.7969+5
▶CVEListV5microsoft/windows_server_20126.2.9200.0 — 6.2.9200.25423
▶CVEListV5microsoft/windows_server_201610.0.14393.0 — 10.0.14393.7969
▶CVEListV5microsoft/windows_server_201910.0.17763.0 — 10.0.17763.7136
▶CVEListV5microsoft/windows_server_202210.0.20348.0 — 10.0.20348.3453

🔴Vulnerability Details

2
GHSA
GHSA-gr4c-v8p7-98x2: Use after free in Windows Remote Desktop Services allows an unauthorized attacker to execute code over a network↗2025-04-08
▶
CVEList
Windows Remote Desktop Services Remote Code Execution Vulnerability↗2025-04-08
▶

📋Vendor Advisories

2
Microsoft
Windows Remote Desktop Services Remote Code Execution Vulnerability↗2025-04-08
▶
Microsoft
blk-mq: fix IO hang from sbitmap wakeup race↗2024-04-09
▶

🕵️Threat Intelligence

4
Krebs
Patch Tuesday, April 2025 Edition↗2025-04-09
▶
Krebs
Patch Tuesday, April 2025 Edition↗2025-04-09
▶
Tenable
Microsoft’s April 2025 Patch Tuesday Addresses 121 CVEs (CVE-2025-29824)↗2025-04-08
▶
Bleepingcomputer
Microsoft April 2025 Patch Tuesday fixes exploited zero-day, 134 flaws↗2025-04-08
▶
CVE-2025-26671 — Use After Free in Microsoft | cvebase