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.
PriorityP337medium6.5CVSS 3.1
AVNACLPRNUIRSUCHINAN
EPSS
1.66%
76.5th 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
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
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.
Bleepingcomputer
Microsoft April 2025 Patch Tuesday fixes exploited zero-day, 134 flaws
blogs_bleepingcomputer·2025-04-08·CVSS 7.8
[HIGH] Microsoft April 2025 Patch Tuesday fixes exploited zero-day, 134 flaws
## Microsoft April 2025 Patch Tuesday fixes exploited zero-day, 134 flaws
## Lawrence Abrams
49 Elevation of Privilege Vulnerabilities
9 Security Feature Bypass Vulnerabilities
31 Remote Code Execution Vulnerabilities
17 Information Disclosure Vulnerabilities
14 Denial of Service Vulnerabilities
3 Spoofing Vulnerabilities
The above numbers do not include Mariner flaws and 13 Microsoft Edge vulnerabilities fixed earlier this month.
To learn more about the non-security updates released today, you can review our dedicated articles on the Windows 11 KB5055523 & KB5055528 cumulative updates and the Windows 10 KB5055518 update .
## One actively exploited zero-days
This month's Patch Tuesday fixes one actively exploited zero-day. Microsoft classifies a zero-day flaw as publicly disclos
Bugzilla
CVE-2024-21203 mysql: FTS unspecified vulnerability (CPU Oct 2024)
bugzilla·2024-10-15·CVSS 4.9
CVE-2024-21203 [MEDIUM] CVE-2024-21203 mysql: FTS unspecified vulnerability (CPU Oct 2024)
CVE-2024-21203 mysql: FTS unspecified vulnerability (CPU Oct 2024)
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: FTS). Supported versions that are affected are 8.0.39 and prior, 8.4.2 and prior and 9.0.1 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
Discussion:
This issue has been addressed in the following products:
Red Hat Enterprise Linux 9
Via RHSA-2025:1671 https://access.redhat.com/errata/
2025-04-08
Published