CVE•Published 2026-06-17•Modified 2026-06-22•1 article on news•6 live references•NVD data
CVE-2026-55200
Vulnerability data via NVD (ingested)
CVSS v3.1
8.1
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
42
Exploit Prediction Scoring System · top 58% of all CVEs
Weaknesses (CWE)
Description
libssh2 through 1.11.1, fixed in commit 7acf3df contains an out-of-bounds write vulnerability in ssh2_transport_read() that fails to enforce upper bounds on packet_length field. Remote attackers can send crafted SSH packets with excessively large packet_length values to corrupt heap memory and achieve remote code execution.
Timeline
Published 2026-06-17
Modified 2026-06-22
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-2026-55200Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-55200Censys host search filtered to this CVE id.
grep.app
CVE-2026-55200Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-55200GitHub code search for direct mentions.
Google dork
"CVE-2026-55200" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.