CVE-2025-26634
published 2025-03-11CVE-2025-26634: Heap-based buffer overflow in Windows Core Messaging allows an authorized attacker to elevate privileges over a network.
PriorityP350high7.5CVSS 3.1
AVNACHPRLUINSUCHIHAH
EPSS
0.62%
45.7th percentile
Heap-based buffer overflow in Windows Core Messaging allows an authorized attacker to elevate privileges over a network.
Affected
38 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10_1507 | < 10.0.10240.20915 | 10.0.10240.20915 |
| microsoft | windows_10_1607 | < 10.0.14393.7785 | 10.0.14393.7785 |
| microsoft | windows_10_21h2 | < 10.0.19044.5487 | 10.0.19044.5487 |
| microsoft | windows_10_22h2 | < 10.0.19045.5487 | 10.0.19045.5487 |
| microsoft | windows_10_version_1507 | >= 10.0.10240.0 < 10.0.10240.20915 | 10.0.10240.20915 |
| microsoft | windows_10_version_1607 | >= 10.0.14393.0 < 10.0.14393.7785 | 10.0.14393.7785 |
| microsoft | windows_10_version_1809 | >= 10.0.17763.0 < 10.0.17763.6893 | 10.0.17763.6893 |
| microsoft | windows_10_version_21h2 | >= 10.0.19044.0 < 10.0.19044.5487 | 10.0.19044.5487 |
| microsoft | windows_10_version_22h2 | >= 10.0.19045.0 < 10.0.19045.5487 | 10.0.19045.5487 |
| microsoft | windows_11_22h2 | < 10.0.22621.4890 | 10.0.22621.4890 |
| microsoft | windows_11_23h2 | < 10.0.22631.4890 | 10.0.22631.4890 |
| microsoft | windows_11_24h2 | < 10.0.26100.3194 | 10.0.26100.3194 |
| microsoft | windows_11_version_22h2 | >= 10.0.22621.0 < 10.0.22621.4890 | 10.0.22621.4890 |
| microsoft | windows_11_version_22h3 | >= 10.0.22631.0 < 10.0.22631.4890 | 10.0.22631.4890 |
| microsoft | windows_11_version_23h2 | >= 10.0.22631.0 < 10.0.22631.4890 | 10.0.22631.4890 |
| microsoft | windows_11_version_24h2 | >= 10.0.26100.0 < 10.0.26100.3194 | 10.0.26100.3194 |
| microsoft | windows_server_2016 | < 10.0.14393.7785 | 10.0.14393.7785 |
| microsoft | windows_server_2016 | >= 10.0.14393.0 < 10.0.14393.7785 | 10.0.14393.7785 |
| microsoft | windows_server_2019 | < 10.0.17763.6893 | 10.0.17763.6893 |
| microsoft | windows_server_2019 | >= 10.0.17763.0 < 10.0.17763.6893 | 10.0.17763.6893 |
| microsoft | windows_server_2022 | < 10.0.20348.3207 | 10.0.20348.3207 |
| microsoft | windows_server_2022 | >= 10.0.20348.0 < 10.0.20348.3207 | 10.0.20348.3207 |
| microsoft | windows_server_2022_23h2 | < 10.0.25398.1425 | 10.0.25398.1425 |
| microsoft | windows_server_2025 | < 10.0.26100.3194 | 10.0.26100.3194 |
| microsoft | windows_server_2025 | >= 10.0.26100.0 < 10.0.26100.3194 | 10.0.26100.3194 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
vendor_msrc7.5HIGH
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Microsoft
Windows Core Messaging Elevation of Privileges Vulnerability
vendor_msrc·2025-03-11·CVSS 7.5
CVE-2025-26634 [HIGH] CWE-122 Windows Core Messaging Elevation of Privileges Vulnerability
Windows Core Messaging Elevation of Privileges Vulnerability
Description: Heap-based buffer overflow in Windows Core Messaging allows an authorized attacker to elevate privileges over a network.
FAQ: According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?
Successful exploitation of this vulnerability requires an attacker to gather information specific to the environment and take additional actions prior to exploitation to prepare the target environment.
FAQ: What privileges could be gained by an attacker who successfully exploited this vulnerability?
An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.
Windows Core Messaging: Windows Core Messaging
Microsoft: Microsoft
Customer Action Required:
GHSA
GHSA-62q2-gc88-c4rh: Heap-based buffer overflow in Windows Core Messaging allows an authorized attacker to elevate privileges over a network
ghsa_unreviewed·2025-03-11
CVE-2025-26634 [HIGH] CWE-122 GHSA-62q2-gc88-c4rh: Heap-based buffer overflow in Windows Core Messaging allows an authorized attacker to elevate privileges over a network
Heap-based buffer overflow in Windows Core Messaging allows an authorized attacker to elevate privileges over a network.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-03-11
Published