CVE-2026-34871

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Summary

CVECVE-2026-34871
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-01 19:16:33 UTC
Updated2026-04-01 21:17:01 UTC
DescriptionAn issue was discovered in Mbed TLS before 3.6.6 and 4.x before 4.1.0 and TF-PSA-Crypto before 1.1.0. There is a Predictable Seed in a Pseudo-Random Number Generator (PRNG).

Risk And Classification

Primary CVSS: v3.1 6.7 MEDIUM from ADP

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

Problem Types: CWE-338 | n/a | CWE-338 CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED6.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary6.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
mbed-tls.readthedocs.io/en/latest/security-advisories [email protected] mbed-tls.readthedocs.io
mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-... [email protected] mbed-tls.readthedocs.io
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