What’s Vulnerable › Vulnerabilities
CVE-2023-52353
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2024-01-21 · updated 2026-06-17
- Weakness: CWE-384
Description
An issue was discovered in Mbed TLS through 3.5.1. In mbedtls_ssl_session_reset, the maximum negotiable TLS version is mishandled. For example, if the last connection negotiated TLS 1.2, then 1.2 becomes the new maximum.
Affected products
- mbedtls: before 3.5.2 — fixed in 3.5.2
How to fix
Upgrade to a fixed version: mbedtls 3.5.2. Check the vendor advisory for mitigations.
References
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