CVE-2025-48802 describes an improper certificate validation flaw in Windows SMB, affecting Windows 11 (22H2, 23H2) and Windows Server 2022 (including 23H2). This medium-severity vulnerability (CVSS 6.5) allows an authorized attacker to perform network spoofing due to a lack of proper certificate validation. While it has a low EPSS score and no known exploit intelligence (Metasploit, Nuclei, ExploitDB), it has garnered some community discussion and media coverage, indicating awareness, but is not currently listed as actively exploited or on the KEV catalog.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 10.0.22621.5624CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:* | ||
< 10.0.22631.5624CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:* | ||
< 10.0.20348.3932CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* | ||
< 10.0.25398.1732CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.