The SSH protocols 1 and 2 (aka SSH-2) as implemented in OpenSSH and other packages have…
Priority MEDIUM 43Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
The SSH protocols 1 and 2 (aka SSH-2) as implemented in OpenSSH and other packages have various weaknesses which can allow a remote attacker to obtain the following information via sniffing: (1) password lengths or ranges of lengths, which simplifies brute force password guessing, (2) whether RSA or DSA authentication is being used, (3) the number of authorized_keys in RSA authentication, or (4) the lengths of shell commands.
Why it matters now
EPSS 0.07051 94th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:openbsd:openssh:4.5:*:*:*:*:*:*:* | 4.5 | Vulnerable | OpenBSD |
| cpe:2.3:a:ssh:ssh:1.2.24:*:*:*:*:*:*:* | 1.2.24 | Vulnerable | SSH |
| cpe:2.3:a:ssh:ssh:1.2.25:*:*:*:*:*:*:* | 1.2.25 | Vulnerable | SSH |
| cpe:2.3:a:ssh:ssh:1.2.26:*:*:*:*:*:*:* | 1.2.26 | Vulnerable | SSH |
| cpe:2.3:a:ssh:ssh:1.2.27:*:*:*:*:*:*:* | 1.2.27 | Vulnerable | SSH |
| cpe:2.3:a:ssh:ssh:1.2.28:*:*:*:*:*:*:* | 1.2.28 | Vulnerable | SSH |
| cpe:2.3:a:ssh:ssh:1.2.29:*:*:*:*:*:*:* | 1.2.29 | Vulnerable | SSH |
| cpe:2.3:a:ssh:ssh:1.2.30:*:*:*:*:*:*:* | 1.2.30 | Vulnerable | SSH |
| cpe:2.3:a:ssh:ssh:1.2.31:*:*:*:*:*:*:* | 1.2.31 | Vulnerable | SSH |
- cpe:2.3:a:openbsd:openssh:4.5:*:*:*:*:*:*:* Versions 4.5 Vulnerable ·OpenBSD
- cpe:2.3:a:ssh:ssh:1.2.24:*:*:*:*:*:*:* Versions 1.2.24 Vulnerable ·SSH
- cpe:2.3:a:ssh:ssh:1.2.25:*:*:*:*:*:*:* Versions 1.2.25 Vulnerable ·SSH
- cpe:2.3:a:ssh:ssh:1.2.26:*:*:*:*:*:*:* Versions 1.2.26 Vulnerable ·SSH
- cpe:2.3:a:ssh:ssh:1.2.27:*:*:*:*:*:*:* Versions 1.2.27 Vulnerable ·SSH
- cpe:2.3:a:ssh:ssh:1.2.28:*:*:*:*:*:*:* Versions 1.2.28 Vulnerable ·SSH
- cpe:2.3:a:ssh:ssh:1.2.29:*:*:*:*:*:*:* Versions 1.2.29 Vulnerable ·SSH
- cpe:2.3:a:ssh:ssh:1.2.30:*:*:*:*:*:*:* Versions 1.2.30 Vulnerable ·SSH
- cpe:2.3:a:ssh:ssh:1.2.31:*:*:*:*:*:*:* Versions 1.2.31 Vulnerable ·SSH
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2001-0572
- 2026-10-03 Alias added: GHSA-m5hh-422h-x5pc
References
Patch 2
Advisory 2
Sources
- CVE-2001-0572 · CVE Program
- CVE-2001-0572 · NVD
- FIRST EPSS
- GHSA-m5hh-422h-x5pc · GitHub Advisory Database · CC BY 4.0
- CVE-2001-0572 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences