Cisco ONS15454 and ONS15327 running ONS before 3.4 stores usernames and passwords in cleartext in the image database for the TCC, TCC+ or XTC, which could allow attackers to gain privileges by obtaining the passwords from the image database or a backup.
Conclusion & alert: CVE-2002-1554 is rated Low Risk (28.3/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.36%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.05% | 0.36% | +0.30% |
| 2 | 2023-03-07 | 0.89% | 0.05% | -0.84% |
| 3 | 2022-02-04 | — | 0.89% | — |
Full EPSS history (3 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.6 | 2.0 | MEDIUM |
|
3.9 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| cisco | optical_networking_systems_software | 3.0 | cpe:2.3:a:cisco:optical_networking_systems_software:3.0:*:*:*:*:*:*:* |
| cisco | optical_networking_systems_software | 3.1.0 | cpe:2.3:a:cisco:optical_networking_systems_software:3.1.0:*:*:*:*:*:*:* |
| cisco | optical_networking_systems_software | 3.2 | cpe:2.3:a:cisco:optical_networking_systems_software:3.2:*:*:*:*:*:*:* |
| cisco | optical_networking_systems_software | 3.2.0 | cpe:2.3:a:cisco:optical_networking_systems_software:3.2.0:*:*:*:*:*:*:* |
| cisco | optical_networking_systems_software | 3.3.0 | cpe:2.3:a:cisco:optical_networking_systems_software:3.3.0:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://www.cisco.com/warp/public/707/ons-multiple-vuln-pub.shtml | Patch Vendor Advisory |
| http://www.iss.net/security_center/static/10506.php | Patch Vendor Advisory |
| http://www.securityfocus.com/bid/6078 | Patch Vendor Advisory |