CVE•Published 2026-03-23•Modified 2026-05-04•1 article on news•7 live references•NVD data
CVE-2026-25075
Vulnerability data via NVD (ingested)
CVSS v3.1
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS percentile
44
Exploit Prediction Scoring System · top 56% of all CVEs
Description
strongSwan versions 4.5.0 prior to 6.0.5 contain an integer underflow vulnerability in the EAP-TTLS AVP parser that allows unauthenticated remote attackers to cause a denial of service by sending crafted AVP data with invalid length fields during IKEv2 authentication. Attackers can exploit the failure to validate AVP length fields before subtraction to trigger excessive memory allocation or NULL pointer dereference, crashing the charon IKE daemon.
Timeline
Published 2026-03-23
Modified 2026-05-04
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).
More intel sources (5)
Shodan report
vuln:CVE-2026-25075Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-25075Censys host search filtered to this CVE id.
grep.app
CVE-2026-25075Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-25075GitHub code search for direct mentions.
Google dork
"CVE-2026-25075" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.