VDB
GHSA-fvc9-q887-5p2h
GHSA-fvc9-q887-5p2h
PUBLISHED
CVSS 7.5 HIGH
Record from GitHub Advisory Database · Published April 14, 2026
Concurrent execution using shared resource with improper synchronization ('race condition') in .NET Framework allows an unauthorized attacker to deny service over a network.
Risk scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Timeline
- Apr 14, 2026 CVE Published
- Apr 15, 2026 Security Advisory
- Jun 30, 2026 CVE Updated
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln GHSA-fvc9-q887-5p2h
vulnetix vdb fixes GHSA-fvc9-q887-5p2hOr with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/GHSA-fvc9-q887-5p2h/fixes/registry"The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23666 url
- https://nvd.nist.gov/vuln/detail/CVE-2026-23666 advisory
- https://access.redhat.com/security/cve/CVE-2026-23666 url
- https://bugzilla.redhat.com/show_bug.cgi?id=2458271 url
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23666.json url