Vulnerability Details CVE-2026-34874
An issue was discovered in Mbed TLS through 3.6.5 and 4.x through 4.0.0. There is a NULL pointer dereference in distinguished name parsing that allows an attacker to write to address 0.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 19.0%
CVSS Severity
CVSS v3 Score 7.5
References
Products affected by CVE-2026-34874
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cpe:2.3:a:arm:mbed_tls:3.5.0
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cpe:2.3:a:arm:mbed_tls:3.5.1
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cpe:2.3:a:arm:mbed_tls:3.5.2
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cpe:2.3:a:arm:mbed_tls:3.6.0
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cpe:2.3:a:arm:mbed_tls:3.6.1
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cpe:2.3:a:arm:mbed_tls:3.6.2
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cpe:2.3:a:arm:mbed_tls:3.6.3
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cpe:2.3:a:arm:mbed_tls:3.6.4
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cpe:2.3:a:arm:mbed_tls:3.6.5
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cpe:2.3:a:arm:mbed_tls:4.0.0