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CVE-2026-34873

critical · 9.1

An issue was discovered in Mbed TLS 3.5.0 through 4.0.0. Client impersonation can occur while resuming a TLS 1.3 session.

9.1
CVSS
0.2%
EPSS (exploit prob.)
16th
EPSS percentile
2026-04-01
Published

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

Weaknesses

CWE-287

Affected products

VendorProductAffected versions
trustedfirmwarembed_tls>= 3.5.0, < 3.6.6
trustedfirmwarembed_tls>= 4.0.0, < 4.1.0

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-34873