CVE-2023-52353

7.5 highEPSS 0.5%

High (7.5) in arm mbed tls. EPSS 0.5% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 40% of CVEs (scores of 2026-10-31)
CWE: CWE-384
Published: 2024-01-21
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

arm:mbed_tls

References

https://github.com/Mbed-TLS/mbedtls/issues/8654
https://github.com/Mbed-TLS/mbedtls/issues/8654

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