net: TLS 1.2 connections allowed on TLS 1.3 sockets
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| zephyrproject-rtos | Zephyr | unaffected |
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No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Zephyrproject-rtos | Zephyr |
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No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.243% probability within 30 days)
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
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| First Time appeared |
Zephyrproject-rtos
Zephyrproject-rtos zephyr |
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| Vendors & Products |
Zephyrproject-rtos
Zephyrproject-rtos zephyr |
| Type | Values Removed | Values Added |
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| Description | Zephyr sockets created with `IPPROTO_TLS_1_3` can still negotiate a TLS 1.2 connection when both TLS versions are enabled in Kconfig, because the socket-level protocol selection is not propagated to mbedTLS (e.g. via `mbedtls_ssl_conf_min_tls_version`). The ClientHello advertises both versions and the peer can establish TLS 1.2, so applications that assumed `IPPROTO_TLS_1_3` enforces TLS 1.3 may silently use TLS 1.2 and remain exposed to TLS 1.2-specific weaknesses. As a workaround, the `TLS_CIPHERSUITE_LIST` socket option can be restricted to TLS 1.3-only cipher suites. | |
| Title | net: TLS 1.2 connections allowed on TLS 1.3 sockets | |
| Weaknesses | CWE-757 | |
| References |
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| Metrics |
cvssV3_1
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