CVE-2002-1558: n/a vulnerability

CVE-2002-1558: Cisco ONS15454 and ONS15327 running ONS before 3.4 have an account for the VxWorks Operating System in the...

Cisco ONS15454 and ONS15327 running ONS before 3.4 have an account for the VxWorks Operating System in the TCC, TCC+ and XTC that cannot be changed or disabled, which allows remote attackers to gain privileges by connecting to the account via Telnet.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 8, 2024, 03:26 UTC (UTC+00:00)

Security readout for executives and security teams

Certain Cisco ONS15454 and ONS15327 optical networking systems running ONS software before 3.4 include a VxWorks operating system account that cannot be changed or disabled. If Telnet is reachable, a remote attacker could use that account to gain privileges on the affected controller hardware. Exposure is most likely in legacy Cisco ONS deployments that still run pre-3.4 ONS software and allow Telnet to management interfaces. Internet exposure is not stated in the sources; internal management-network exposure is still material. Prioritize remediation for any operational Cisco ONS systems that are still in service. The business concern is privileged access to network infrastructure through a credential condition administrators cannot rotate away. Mitigation focus: Inventory Cisco ONS15454 and ONS15327 systems.; Confirm whether ONS software is older than 3.4.; Follow Cisco advisory guidance for supported remediation..

Prepared: Jul 1, 2026, 00:08 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2002-1558 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup

Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Mar 18, 2003, 05:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

1Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.