CVE•Published 2006-09-27•Modified 2026-04-23•1 article on news•6 live references•NVD data

CVE-2006-5051Openbsd · Openssh

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

—

Weaknesses (CWE)

CWE-415Double Free

Description

Signal handler race condition in OpenSSH before 4.4 allows remote attackers to cause a denial of service (crash), and possibly execute arbitrary code if GSSAPI authentication is enabled, via unspecified vectors that lead to a double-free.

Timeline

Published 2006-09-27

Modified 2026-04-23

External references

NVD MITRE Exploit-DB GitHub PoC trickest/cve VulnCheck

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 tag26,652 hosts

vuln:CVE-2006-5051

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Openbsd Openssh"

All exposed Openbsd Openssh instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Openssh"

HTTP body or banner mentions "Openssh" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2006-5051