OpenSSH 3.6.1 and earlier, when restricting host access by numeric IP addresses and with…
Priority MEDIUM 42Published · 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
OpenSSH 3.6.1 and earlier, when restricting host access by numeric IP addresses and with VerifyReverseMapping disabled, allows remote attackers to bypass "from=" and "user@host" address restrictions by connecting to a host from a system whose reverse DNS hostname contains the numeric IP address.
Why it matters now
EPSS 0.05766 93rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Red Hat: 2 advisories
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
Remediation
Red Hat 2 advisories
- RHSA-2006:0698 Released 2006-09-29 · Red Hat rating Importantopenssh security update
- Red Hat Enterprise Linux AS (Advanced Server) version 2.1 openssh-3.1p1-21, openssh-3.1p1-21.i386, openssh-3.1p1-21.ia64 +8
- Red Hat Enterprise Linux ES version 2.1 openssh-3.1p1-21, openssh-3.1p1-21.i386, openssh-askpass-3.1p1-21.i386 +3
- Red Hat Enterprise Linux WS version 2.1 openssh-3.1p1-21, openssh-3.1p1-21.i386, openssh-askpass-3.1p1-21.i386 +3
- Red Hat Linux Advanced Workstation 2.1 openssh-3.1p1-21, openssh-3.1p1-21.ia64, openssh-askpass-3.1p1-21.ia64 +3
- RHSA-2006:0298 Released 2006-07-20 · Red Hat rating Lowopenssh security update
- Red Hat Desktop version 3 openssh-3.6.1p2-33.30.9, openssh-3.6.1p2-33.30.9.i386, openssh-askpass-3.6.1p2-33.30.9 +7
- Red Hat Enterprise Linux AS version 3 openssh-3.6.1p2-33.30.9, openssh-3.6.1p2-33.30.9.i386, openssh-3.6.1p2-33.30.9.ia64 +17
- Red Hat Enterprise Linux ES version 3 openssh-3.6.1p2-33.30.9, openssh-3.6.1p2-33.30.9.i386, openssh-3.6.1p2-33.30.9.ia64 +12
- Red Hat Enterprise Linux WS version 3 openssh-3.6.1p2-33.30.9, openssh-3.6.1p2-33.30.9.i386, openssh-3.6.1p2-33.30.9.ia64 +12
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Desktop version 3 | Fixed | RHSA-2006:0298 |
| Red Hat Enterprise Linux AS (Advanced Server) version 2.1 | Fixed | RHSA-2006:0698 |
| Red Hat Enterprise Linux AS version 3 | Fixed | RHSA-2006:0298 |
| Red Hat Enterprise Linux ES version 2.1 | Fixed | RHSA-2006:0698 |
| Red Hat Enterprise Linux ES version 3 | Fixed | RHSA-2006:0298 |
| Red Hat Enterprise Linux WS version 2.1 | Fixed | RHSA-2006:0698 |
| Red Hat Enterprise Linux WS version 3 | Fixed | RHSA-2006:0298 |
| Red Hat Linux Advanced Workstation 2.1 | Fixed | RHSA-2006:0698 |
Timeline
- 2026-10-02 Threatist record created from CVE-2003-0386
- 2026-10-03 Alias added: GHSA-ph8j-5f3x-v435
References
Exploit 1
Advisory 2
More OpenBSD Openssh vulnerabilities
- TI-2023-19792 The PKCS#11 feature in ssh-agent in OpenSSH before 9.3p2 has an insufficiently… CVSS 3.1CRITICAL 9.8
- TI-2024-05929 Openssh: regresshion - race condition in ssh allows rce/dos CVSS 3.1HIGH 8.1
- TI-2023-10601 OpenSSH server (sshd) 9.1 introduced a double-free vulnerability during… CVSS 3.1MEDIUM 6.5
- TI-2018-11033 OpenSSH through 7.7 is prone to a user enumeration vulnerability due to not delaying… CVSS 3.1MEDIUM 5.9
- TI-2016-08105 Untrusted search path vulnerability in ssh-agent.c in ssh-agent in OpenSSH before 7.4… CVSS 3.1HIGH 7.3
- TI-2023-28040 In ssh in OpenSSH before 9.6, OS command injection might occur if a user name or host… CVSS 3.1MEDIUM 6.5
Sources
- CVE-2003-0386 · CVE Program
- CVE-2003-0386 · NVD
- FIRST EPSS
- GHSA-ph8j-5f3x-v435 · GitHub Advisory Database · CC BY 4.0
- CVE-2003-0386 · 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