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TI-2016-08058 Aliases CVE-2016-9952GHSA-j357-mfhx-p456

The verify_certificate function in lib/vtls/schannel.c in libcurl 7.30.0 through 7.51.0…

Priority MEDIUM 40CWE-295Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Spoofing
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-295.

Summary

The verify_certificate function in lib/vtls/schannel.c in libcurl 7.30.0 through 7.51.0, when built for Windows CE using the schannel TLS backend, makes it easier for remote attackers to conduct man-in-the-middle attacks via a crafted wildcard SAN in a server certificate, as demonstrated by "*.com."

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01276 70th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*7.30.0 – 7.51.0VulnerableHaxx
cpe:2.3:o:microsoft:windows_embedded_compact:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
  • cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* Versions 7.30.0 – 7.51.0 Vulnerable ·Haxx
  • cpe:2.3:o:microsoft:windows_embedded_compact:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-9952
  2. 2026-10-03 Alias added: GHSA-j357-mfhx-p456

References

Advisory 2

  • TI-2026-16162 Negotiate ambient user conn reuse CVSS 3.1CRITICAL 9.8
  • TI-2026-10231 cross-origin Digest auth state leak CVSS 3.1CRITICAL 9.8
  • TI-2026-09063 HTTP/2 stream-dependency tree UAF CVSS 3.1CRITICAL 9.8
  • TI-2026-07976 stale proxy password leak CVSS 3.1CRITICAL 9.8
  • TI-2026-07845 SASL double-free CVSS 3.1CRITICAL 9.8
  • TI-2023-12257 Injection in https://github.com/curl/curl CVSS 3.1CRITICAL 9.8
See all 168 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences