CVE•Published 2017-03-16•Modified 2026-05-13•1 article on news•5 live references•NVD data
CVE-2017-6949Call-cc · Chicken
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
—
Description
An issue was discovered in CHICKEN Scheme through 4.12.0. When using a nonstandard CHICKEN-specific extension to allocate an SRFI-4 vector in unmanaged memory, the vector size would be used in unsanitised form as an argument to malloc(). With an unexpected size, the impact may have been a segfault or buffer overflow.
Timeline
Published 2017-03-16
Modified 2026-05-13
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-2017-6949Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product + version
product:"Call-cc Chicken" version:"4.12.0"Version-pinned fingerprint from NVD's first vulnerable CPE.
Shodan · banner/body mention
http.html:"Chicken"HTTP body or banner mentions "Chicken" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2017-6949Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2017-6949Censys host search filtered to this CVE id.
grep.app
CVE-2017-6949Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2017-6949GitHub code search for direct mentions.
Google dork
"CVE-2017-6949" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.