Description
Mbed TLS before 3.6.4 has a NULL pointer dereference because mbedtls_asn1_store_named_data can trigger conflicting data with val.p of NULL but val.len greater than zero.
References (3)
Core 3
Core References
Mitigation, Third Party Advisory
https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-6.md
Scores
CVSS v3
4.0
EPSS
0.0006
EPSS Percentile
19.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-476
CWE-696
Status
published
Products (1)
arm/mbed_tls
< 3.6.4
Published
Jul 20, 2025
Tracked Since
Feb 18, 2026