Cisco ONS 15327 before 4.1(3), ONS 15454 before 4.6(1), ONS 15454 SD before 4.1(3), and…
Priority LOW 27Published · 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
- None · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Cisco ONS 15327 before 4.1(3), ONS 15454 before 4.6(1), ONS 15454 SD before 4.1(3), and Cisco ONS 15600 before 1.3(0) enable TFTP service on UDP port 69 by default, which allows remote attackers to GET or PUT ONS system files on the current active TCC in the /flash0 or /flash1 directories.
Why it matters now
EPSS 0.02117 81st percentileScored 2026-11-07
Fix No fix listed 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 · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:optical_networking_systems_software:1.0:*:*:*:*:*:*:* | 1.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:optical_networking_systems_software:4.0\(1\):*:*:*:*:*:*:* | 4.0(1) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:optical_networking_systems_software:4.0\(2\):*:*:*:*:*:*:* | 4.0(2) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:optical_networking_systems_software:4.0.0:*:*:*:*:*:*:* | 4.0.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:optical_networking_systems_software:4.1\(0\):*:*:*:*:*:*:* | 4.1(0) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:optical_networking_systems_software:4.1\(1\):*:*:*:*:*:*:* | 4.1(1) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:optical_networking_systems_software:4.1\(2\):*:*:*:*:*:*:* | 4.1(2) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:optical_networking_systems_software:4.1\(3\):*:*:*:*:*:*:* | 4.1(3) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:optical_networking_systems_software:4.1.0:*:*:*:*:*:*:* | 4.1.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:optical_networking_systems_software:4.5:*:*:*:*:*:*:* | 4.5 | Vulnerable | Cisco |
- cpe:2.3:a:cisco:optical_networking_systems_software:1.0:*:*:*:*:*:*:* Versions 1.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:optical_networking_systems_software:4.0\(1\):*:*:*:*:*:*:* Versions 4.0(1) Vulnerable ·Cisco
- cpe:2.3:a:cisco:optical_networking_systems_software:4.0\(2\):*:*:*:*:*:*:* Versions 4.0(2) Vulnerable ·Cisco
- cpe:2.3:a:cisco:optical_networking_systems_software:4.0.0:*:*:*:*:*:*:* Versions 4.0.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:optical_networking_systems_software:4.1\(0\):*:*:*:*:*:*:* Versions 4.1(0) Vulnerable ·Cisco
- cpe:2.3:a:cisco:optical_networking_systems_software:4.1\(1\):*:*:*:*:*:*:* Versions 4.1(1) Vulnerable ·Cisco
- cpe:2.3:a:cisco:optical_networking_systems_software:4.1\(2\):*:*:*:*:*:*:* Versions 4.1(2) Vulnerable ·Cisco
- cpe:2.3:a:cisco:optical_networking_systems_software:4.1\(3\):*:*:*:*:*:*:* Versions 4.1(3) Vulnerable ·Cisco
- cpe:2.3:a:cisco:optical_networking_systems_software:4.1.0:*:*:*:*:*:*:* Versions 4.1.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:optical_networking_systems_software:4.5:*:*:*:*:*:*:* Versions 4.5 Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2004-0306
- 2026-10-03 Alias added: GHSA-h4v9-xfr4-ch4g
More Cisco Optical Networking Systems Software vulnerabilities
- TI-2003-00533 Cisco IOS 11.x and 12.0 through 12.2 allows remote attackers to cause a denial of service… CVSS 2.0HIGH 7.8
- TI-2002-01480 Cisco ONS15454 and ONS15327 running ONS before 3.4 have an account for the VxWorks… CVSS 2.0HIGH 10.0
- TI-2004-00277 Unknown vulnerability in Cisco ONS 15327 before 4.1(3), ONS 15454 before 4.6(1), ONS… CVSS 2.0HIGH 10.0
- TI-2006-01618 The installation of Cisco Transport Controller (CTC) for Cisco Optical Networking System… CVSS 2.0HIGH 7.5
- TI-2004-01313 The Transaction Language 1 (TL1) login interface in Cisco ONS 15327 4.6(0) and 4.6(1) and… CVSS 2.0HIGH 7.5
- TI-2006-01616 Control cards for Cisco Optical Networking System (ONS) 15000 series nodes before… CVSS 2.0HIGH 7.8
Sources
- CVE-2004-0306 · CVE Program
- CVE-2004-0306 · NVD
- FIRST EPSS
- GHSA-h4v9-xfr4-ch4g · GitHub Advisory Database · CC BY 4.0
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