CVE-2002-1557

NONECVSS 0.0

0.0

Cisco ONS15454 and ONS15327 running ONS before 3.4 allows attackers to cause a denial of service (reset to TCC, TCC+, TCCi or XTC) via a malformed HTTP request that does not contain a leading / (slash) character.

CVSS v3: —
EG Score: —
EPSS: 65.7%
KEV: Not listed

Published

March 31, 2003

Last Modified

April 16, 2026

References (6)

cve@mitrehttp://www.cisco.com/warp/public/707/ons-multiple-vuln-pub.shtml
cve@mitrehttp://www.iss.net/security_center/static/10509.php
cve@mitrehttp://www.securityfocus.com/bid/6082
af854a3a-2127-422b-91ae-364da2661108http://www.cisco.com/warp/public/707/ons-multiple-vuln-pub.shtml
af854a3a-2127-422b-91ae-364da2661108http://www.iss.net/security_center/static/10509.php
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/6082

Data Freshness Timeline

(refreshed 12× in last 7d / 17× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-29 13:40 UTCepss_batch
2026-05-29 13:40 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-27 13:37 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
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2026-05-26 07:16 UTCepss_batch
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2026-05-24 16:42 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-20 22:36 UTCepss_batch
2026-05-20 11:20 UTCepss_batch
2026-05-20 11:20 UTCepss_batch
2026-05-18 21:29 UTCepss_batch
2026-05-18 21:29 UTCepss_batch

Frequently asked(4)

What is CVE-2002-1557?

CVE-2002-1557 is a none vulnerability published on March 31, 2003. Cisco ONS15454 and ONS15327 running ONS before 3.4 allows attackers to cause a denial of service (reset to TCC, TCC+, TCCi or XTC) via a malformed HTTP request that does not contain a leading / (slash) character.

When was CVE-2002-1557 disclosed?

CVE-2002-1557 was first published in the National Vulnerability Database on March 31, 2003, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2002-1557 actively exploited?

CVE-2002-1557 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 65.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2002-1557?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2002-1557, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2002-1557

📅 Published

🔄 Last Modified

🔗 References (6)