CVE-2004-1436

The Transaction Language 1 (TL1) login interface in Cisco ONS 15327 4.6(0) and 4.6(1) and 15454 and 15454 SDH 4.6(0) and 4.6(1), when a user account is configured with a blank password, allows remote attackers to gain unauthorized access by logging in with a password larger than 10 characters.

Published: 2004-12-31 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2004-1436 is rated Moderate Risk (62.1/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.14%). EPSS rose +1.95% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2004-1436

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 1.19% 3.14% +1.95%
2 2025-03-30 2.32% 1.19% -1.13%
3 2025-03-29 — 2.32% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2004-1436

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2004-1436

Affected software / configurations for CVE-2004-1436

Vendor Product Version Raw CPE
cisco optical_networking_systems_software 1.0 cpe:2.3:a:cisco:optical_networking_systems_software:1.0:*:*:*:*:*:*:*
cisco optical_networking_systems_software 1.1 cpe:2.3:a:cisco:optical_networking_systems_software:1.1:*:*:*:*:*:*:*
cisco optical_networking_systems_software 1.1\(0\) cpe:2.3:a:cisco:optical_networking_systems_software:1.1\(0\):*:*:*:*:*:*:*
cisco optical_networking_systems_software 1.1\(1\) cpe:2.3:a:cisco:optical_networking_systems_software:1.1\(1\):*:*:*:*:*:*:*
cisco optical_networking_systems_software 1.3\(0\) cpe:2.3:a:cisco:optical_networking_systems_software:1.3\(0\):*:*:*:*:*:*:*
cisco optical_networking_systems_software 2.3\(5\) cpe:2.3:a:cisco:optical_networking_systems_software:2.3\(5\):*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
cisco optical_networking_systems_software 3.4.0 cpe:2.3:a:cisco:optical_networking_systems_software:3.4.0:*:*:*:*:*:*:*
cisco optical_networking_systems_software 4.0\(0\) cpe:2.3:a:cisco:optical_networking_systems_software:4.0\(0\):*:*:*:*:*:*:*
cisco optical_networking_systems_software 4.0\(1\) cpe:2.3:a:cisco:optical_networking_systems_software:4.0\(1\):*:*:*:*:*:*:*
cisco optical_networking_systems_software 4.0\(2\) cpe:2.3:a:cisco:optical_networking_systems_software:4.0\(2\):*:*:*:*:*:*:*
cisco optical_networking_systems_software 4.0.0 cpe:2.3:a:cisco:optical_networking_systems_software:4.0.0:*:*:*:*:*:*:*
cisco optical_networking_systems_software 4.1\(0\) cpe:2.3:a:cisco:optical_networking_systems_software:4.1\(0\):*:*:*:*:*:*:*
cisco optical_networking_systems_software 4.1\(1\) cpe:2.3:a:cisco:optical_networking_systems_software:4.1\(1\):*:*:*:*:*:*:*
cisco optical_networking_systems_software 4.1\(2\) cpe:2.3:a:cisco:optical_networking_systems_software:4.1\(2\):*:*:*:*:*:*:*
cisco optical_networking_systems_software 4.1\(3\) cpe:2.3:a:cisco:optical_networking_systems_software:4.1\(3\):*:*:*:*:*:*:*
cisco optical_networking_systems_software 4.5 cpe:2.3:a:cisco:optical_networking_systems_software:4.5:*:*:*:*:*:*:*
cisco optical_networking_systems_software 4.6\(0\) cpe:2.3:a:cisco:optical_networking_systems_software:4.6\(0\):*:*:*:*:*:*:*
cisco optical_networking_systems_software 4.6\(1\) cpe:2.3:a:cisco:optical_networking_systems_software:4.6\(1\):*:*:*:*:*:*:*

References for CVE-2004-1436

cvelogic Threat Intelligence