CVE Catalog

CVE-2026-32283

HighCVSS 7.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.62%

48th percentile - higher than 48% of all known CVEs

Summary

If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled resource consumption. This leads to denial of service. This only affects TLS 1.3.

Risk Assessment

The organization is exposed to DoS attacks that can overload TLS servers and prevent secure connections.

Recommendation

Update TLS libraries (e.g., OpenSSL) to a patched version and limit the number of key update messages.

Related vulnerabilities

Original NVD description (English source)

If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled consumption of resources. This can lead to a denial of service. This only affects TLS 1.3.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS