CVE-2016-9952 describes a critical vulnerability in libcurl versions 7.30.0 through 7.51.0, specifically when built for Windows CE using the schannel TLS backend. This flaw, residing in the verify_certificate function, allows remote attackers to perform man-in-the-middle (MitM) attacks by exploiting crafted wildcard Subject Alternative Names (SANs) in server certificates, such as "*.com." Rated with a CVSS score of 8.1 (HIGH), this vulnerability is remotely exploitable with high impact on confidentiality, integrity, and availability, though it requires high attack complexity. The CWE-295 classification indicates improper certificate validation, making affected haxx curl and Microsoft curl implementations on Windows Embedded Compact susceptible to such attacks. Despite its high severity, there is currently no evidence of active exploitation, no known public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage. It is not listed in CISA's KEV catalog, suggesting it is not widely exploited in the wild.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 7.30.0, <= 7.51.0CPE matchmatch criteria | cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.