CVE•Published 2026-03-26•Modified 2026-05-19•1 article on news•5 live references•NVD data
CVE-2026-0966Libssh · Libssh
Vulnerability data via NVD (ingested)
CVSS v3.1
8.2
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
EPSS percentile
16
Exploit Prediction Scoring System · top 84% of all CVEs
Weaknesses (CWE)
Description
A flaw was found in libssh. The API function `ssh_get_hexa()` is vulnerable to a denial of service when processing zero-length input. This can be exploited remotely by an attacker during GSSAPI (Generic Security Service Application Program Interface) authentication if the server's logging verbosity is set to `SSH_LOG_PACKET (3)` or higher. Successful exploitation could lead to a self-Denial of Service of the per-connection daemon process.
Timeline
Published 2026-03-26
Modified 2026-05-19
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-2026-0966Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Libssh Libssh"All exposed Libssh Libssh instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Libssh"HTTP body or banner mentions "Libssh" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-0966Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-0966Censys host search filtered to this CVE id.
grep.app
CVE-2026-0966Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-0966GitHub code search for direct mentions.
Google dork
"CVE-2026-0966" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-0966 on GitHub.