What’s Vulnerable › Vulnerabilities

CVE-2017-2784

• Severity: high (CVSS 8.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-04-20 · updated 2026-06-17
• Weakness: CWE-295

Description

An exploitable free of a stack pointer vulnerability exists in the x509 certificate parsing code of ARM mbed TLS before 1.3.19, 2.x before 2.1.7, and 2.4.x before 2.4.2. A specially crafted x509 certificate, when parsed by mbed TLS library, can cause an invalid free of a stack pointer leading to a potential remote code execution. In order to exploit this vulnerability, an attacker can act as either a client or a server on a network to deliver malicious x509 certificates to vulnerable applications.

Affected products

• TrustedFirmware Mbed TLS: through 1.3.18; 2.0.0, 2.1.0, 2.1.1, 2.1.2, 2.1.3, 2.1.4 (+3)

References

• http://www.talosintelligence.com/reports/TALOS-2017-0274/
• https://security.gentoo.org/glsa/201706-18
• https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2017-01
• http://www.talosintelligence.com/reports/TALOS-2017-0274/
• https://security.gentoo.org/glsa/201706-18
• https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2017-01

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