CVE•Published 2026-07-24•Modified 2026-08-17•1 article on news•4 live references•NVD data
CVE-2026-66140Exim · Exim
Vulnerability data via NVD (ingested)
CVSS v3.1
8.4
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
20
Exploit Prediction Scoring System · top 80% of all CVEs
Weaknesses (CWE)
Description
Exim before 4.99.5 allows directory traversal to access files outside of the spool area, and consequently gain privileges, because arguments related to queue-name are mishandled.
Timeline
Published 2026-07-24
Modified 2026-08-17
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 tag483,580 hosts
vuln:CVE-2026-66140Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Exim Exim"All exposed Exim Exim instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Exim"HTTP body or banner mentions "Exim" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-66140Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-66140Censys host search filtered to this CVE id.
grep.app
CVE-2026-66140Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-66140GitHub code search for direct mentions.
Google dork
"CVE-2026-66140" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-66140 on GitHub.