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Vulnerability record · CVE-2003-0647 · published 27 August 2003

CVE-2003-0647: Cisco ios vulnerability

Cisco · Ios

Buffer overflow in the HTTP server for Cisco IOS 12.2 and earlier allows remote attackers to execute arbitrary code via an extremely long (2GB) HTTP GET request.

7.5 CVSS 2.0 High EPSS 5.9% · top 7.0%
7.5CVSS 2.0 base score
5.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
16 Jun 2026Last modified by NVD

Description

Buffer overflow in the HTTP server for Cisco IOS 12.2 and earlier allows remote attackers to execute arbitrary code via an extremely long (2GB) HTTP GET request.

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

Affected products

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

References

LinkTags
http://www.cisco.com/warp/public/707/cisco-sn-20030730-ios-2gb-get.shtml PatchVendor Advisory
http://www.kb.cert.org/vuls/id/579324 PatchThird Party AdvisoryUS Government Resource
http://www.cisco.com/warp/public/707/cisco-sn-20030730-ios-2gb-get.shtml PatchVendor Advisory
http://www.kb.cert.org/vuls/id/579324 PatchThird Party AdvisoryUS Government Resource

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2003-0647), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.