CVE-2025-21203
published 2025-04-08CVE-2025-21203: Buffer over-read in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network.
PriorityP336medium6.5CVSS 3.1
AVNACLPRNUIRSUCHINAN
EPSS
1.50%
71.4th percentile
Buffer over-read in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network.
Affected
25 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_server_2008 | — | — |
| microsoft | windows_server_2008_r2_service_pack_1 | >= 6.1.7601.0 < 6.1.7601.27670 | 6.1.7601.27670 |
| microsoft | windows_server_2008_service_pack_2 | >= 6.0.6003.0 < 6.0.6003.23220 | 6.0.6003.23220 |
| microsoft | windows_server_2012 | — | — |
| microsoft | windows_server_2012 | >= 6.2.9200.0 < 6.2.9200.25423 | 6.2.9200.25423 |
| microsoft | windows_server_2012_r2 | >= 6.3.9600.0 < 6.3.9600.22523 | 6.3.9600.22523 |
| microsoft | windows_server_2016 | < 10.0.14393.7969 | 10.0.14393.7969 |
| microsoft | windows_server_2016 | >= 10.0.14393.0 < 10.0.14393.7969 | 10.0.14393.7969 |
| microsoft | windows_server_2019 | < 10.0.17763.7136 | 10.0.17763.7136 |
| microsoft | windows_server_2019 | >= 10.0.17763.0 < 10.0.17763.7136 | 10.0.17763.7136 |
| microsoft | windows_server_2022 | < 10.0.20348.3453 | 10.0.20348.3453 |
| microsoft | windows_server_2022 | >= 10.0.20348.0 < 10.0.20348.3453 | 10.0.20348.3453 |
| microsoft | windows_server_2022_23h2 | < 10.0.25398.1551 | 10.0.25398.1551 |
| microsoft | windows_server_2025 | < 10.0.26100.3775 | 10.0.26100.3775 |
| microsoft | windows_server_2025 | >= 10.0.26100.0 < 10.0.26100.3775 | 10.0.26100.3775 |
| msrc | windows_server_2008_for_32-bit_systems_service_pack_2 | — | — |
| msrc | windows_server_2008_for_x64-based_systems_service_pack_2 | — | — |
| msrc | windows_server_2008_r2_for_x64-based_systems_service_pack_1 | — | — |
| msrc | windows_server_2012 | — | — |
| msrc | windows_server_2012_r2 | — | — |
| msrc | windows_server_2016 | — | — |
| msrc | windows_server_2019 | — | — |
| msrc | windows_server_2022 | — | — |
| msrc | windows_server_2022_23h2_edition | — | — |
| msrc | windows_server_2025 | — | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
vendor_msrc6.5MEDIUM
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GHSA
GHSA-jc9x-pxc5-cq7f: Buffer over-read in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network
ghsa_unreviewed·2025-04-08
CVE-2025-21203 [MEDIUM] CWE-126 GHSA-jc9x-pxc5-cq7f: Buffer over-read in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network
Buffer over-read in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network.
Microsoft
Windows Routing and Remote Access Service (RRAS) Information Disclosure Vulnerability
vendor_msrc·2025-04-08·CVSS 6.5
CVE-2025-21203 [MEDIUM] CWE-126 Windows Routing and Remote Access Service (RRAS) Information Disclosure Vulnerability
Windows Routing and Remote Access Service (RRAS) Information Disclosure Vulnerability
Description: Buffer over-read in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network.
FAQ: According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?
This attack requires an admin user on the client to connect to a malicious server and then take specific actions which could result in information disclosure.
FAQ: What type of information could be disclosed by this vulnerability?
An attacker who successfully exploited this vulnerability could potentially read portions of heap memory.
Windows Routing and Remote Access Service (RRAS): Windows Routing and Remote Access Service (RRAS)
Mic
No detection rules found.
No public exploits indexed.
2025-04-08
Published