Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2003-0647

30
FAUCET Score

CVE-2003-0647 describes a buffer overflow vulnerability in the HTTP server component of Cisco IOS versions 12.2 and earlier. This flaw allows unauthenticated remote attackers to execute arbitrary code on affected devices by sending an extremely long HTTP GET request. With a CVSS score of 7.5, it is considered highly severe due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. While not listed on the KEV catalog, an exploit (EDB-77) exists on ExploitDB, though there is minimal community discussion or media coverage surrounding this older vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 12.2CPE matchmatch criteria
cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.93%
Probability of exploitation in next 30 days
EPSS Percentile
92.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-77 · Aug 10, 2003
This CVE's current EPSS score of 0.0593 is in the 87th percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

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