AUGUST 4, 2026
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Case File

CVE-2025-68121

CRITICAL · CVSS 10 EPSS 0.77%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-02-05 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 10.0. See the original NVD description below for full technical details.

CVE
CVE-2025-68121
Severity
CRITICAL
CVSS
10
EPSS
0.77%

Original NVD Description

During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succeed when it should have failed. This may happen when a user calls Config.Clone and mutates the returned Config, or uses Config.GetConfigForClient. This can cause a client to resume a session with a server that it would not have resumed with during the initial handshake, or cause a server to resume a session with a client that it would not have resumed with during the initial handshake.

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