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CVE-2000-0984

24
FAUCET Score

CVE-2000-0984 describes a denial-of-service vulnerability in Cisco IOS HTTP servers, specifically versions 12.0 through 12.1. An unauthenticated attacker can trigger a crash and reload of the device by sending a specially crafted HTTP request containing a "?/" string in the URL. This vulnerability has a CVSS score of 5.0 (Medium), indicating a network-based attack with low complexity and no authentication required, leading to a partial availability impact. While not actively exploited in the wild and not on CISA's KEV catalog, public exploit code exists, and its FAUCET Risk Score is high at 97/100, despite minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
12.0tCPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.0t:*:*:*:*:*:*:*
12.0w5CPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.0w5:*:*:*:*:*:*:*
12.0xaCPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.0xa:*:*:*:*:*:*:*
12.0xeCPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.0xe:*:*:*:*:*:*:*
12.0xhCPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.0xh:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.29%
Probability of exploitation in next 30 days
EPSS Percentile
90.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-20323 · Oct 25, 2000
This CVE's current EPSS score of 0.0430 is in the 87th percentile among its peer group of 23,705 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, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

exchange.xforce.ibmcloud.com / vulnerabilities/5412
cisco.com / warp/public/707/ioshttpserverquery-pub.shtml
PatchVendor Advisory
securityfocus.com / bid/1838
ExploitPatchVendor Advisory