Vulnerability record · CVE-2002-1557 · published 31 March 2003

CVE-2002-1557: Cisco optical networking systems software vulnerability

Cisco · Optical Networking Systems Software

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.

5.0 CVSS 2.0 Medium EPSS 1.4% · top 28.8%

5.0CVSS 2.0 base score

1.4%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

6References

16 Jun 2026Last modified by NVD

Description

AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Optical Networking Systems Software Cisco

References

Link	Tags
http://www.cisco.com/warp/public/707/ons-multiple-vuln-pub.shtml	PatchVendor Advisory
http://www.iss.net/security_center/static/10509.php	PatchVendor Advisory
http://www.securityfocus.com/bid/6082	PatchVendor Advisory
http://www.cisco.com/warp/public/707/ons-multiple-vuln-pub.shtml	PatchVendor Advisory
http://www.iss.net/security_center/static/10509.php	PatchVendor Advisory
http://www.securityfocus.com/bid/6082	PatchVendor Advisory

Track CVE-2002-1557 inside VULONE

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2004-0308Cisco optical networking systems software vulnerabilityUnknown vulnerability in Cisco ONS 15327 before 4.1(3), ONS 15454 before 4.6(1), ONS 15454 SD before 4.1(3), and Cisco ONS15600 before 1.3(0) allows …EPSS 1.7%24 Nov 2004 10.0CVE-2002-1558Cisco optical networking systems software vulnerabilityCisco 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 o…EPSS 2.8%31 Mar 2003 7.8CVE-2006-1670Cisco optical networking systems software vulnerabilityControl cards for Cisco Optical Networking System (ONS) 15000 series nodes before 20060405 allow remote attackers to cause a denial of service (memor…EPSS 2.3%7 Apr 2006 7.8CVE-2003-0567Cisco ios improper input validation vulnerabilityCisco IOS 11.x and 12.0 through 12.2 allows remote attackers to cause a denial of service (traffic block) by sending a particular sequence of IPv4 pa…EPSS 17%18 Aug 2003 7.5CVE-2006-1672Cisco transport controller vulnerabilityThe installation of Cisco Transport Controller (CTC) for Cisco Optical Networking System (ONS) 15000 series nodes adds a Java policy file entry with …EPSS 4.1%7 Apr 2006 7.5CVE-2004-1436Cisco optical networking systems software vulnerabilityThe 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 …EPSS 3.1%31 Dec 2004 7.5CVE-2002-1553Cisco optical networking systems software vulnerabilityCisco ONS15454 and ONS15327 running ONS before 3.4 allows remote attackers to modify the system configuration and delete files by establishing an FTP…EPSS 1.6%31 Mar 2003 5.0CVE-2006-1671Cisco transport controller vulnerabilityControl cards for Cisco Optical Networking System (ONS) 15000 series nodes before 20060405 allow remote attackers to cause a denial of service (card …EPSS 2.4%7 Apr 2006

Source: NIST National Vulnerability Database (record CVE-2002-1557), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.