CVE•Published 2017-04-20•Modified 2026-06-05•1 article on news•6 live references•NVD data
CVE-2017-2784Trustedfirmware · Mbed_tls
Vulnerability data via NVD (ingested)
CVSS v3.1
8.1
HIGH
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
72
Exploit Prediction Scoring System · top 28% of all CVEs
Weaknesses (CWE)
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.
Timeline
Published 2017-04-20
Modified 2026-06-05
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2017-2784Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Trustedfirmware Mbed Tls"All exposed Trustedfirmware Mbed Tls instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Mbed Tls"HTTP body or banner mentions "Mbed Tls" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2017-2784Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2017-2784Censys host search filtered to this CVE id.
grep.app
CVE-2017-2784Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2017-2784GitHub code search for direct mentions.
Google dork
"CVE-2017-2784" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.