CVE-2018-0487

9.8 criticalEPSS 3.3%

ARM mbed TLS before 1.3.22, before 2.1.10, and before 2.7.0 allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow) via a crafted certificate chain that is mishandled during RSASSA-PSS signature verification within a TLS or DTLS session.

Severity

CVSS 3.0

9.8 critical

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 3.3% chance of exploitation in the next 30 days; higher than 88% of CVEs (scores of 2026-10-31)
CWE: CWE-119
Published: 2018-02-13
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

arm:mbed_tls
debian:debian_linux

References

http://www.securityfocus.com/bid/103056
https://security.gentoo.org/glsa/201804-19
https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-01
https://usn.ubuntu.com/4267-1/
https://www.debian.org/security/2018/dsa-4138

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