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CVE-1999-0416

23
FAUCET Score

CVE-1999-0416 describes a denial-of-service vulnerability affecting Cisco 7xx series routers, allowing a remote attacker to force a system reload by establishing a TCP connection to the router's TELNET port. This vulnerability has a CVSS score of 5.0 (Medium), indicating a network-based attack with low complexity and no authentication required, resulting in partial availability impact. While not listed on the KEV or Hot List, an exploit for this issue is available on ExploitDB (EDB-19919). Despite its age, there is no evidence of active exploitation, Metasploit or Nuclei modules, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:h:cisco:cisco_7xx_routers:*:*:*:*:*:*:*:*

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
3.42%
Probability of exploitation in next 30 days
EPSS Percentile
87.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-19919 · Mar 11, 1999
This CVE's current EPSS score of 0.0342 is in the 83rd percentile among its peer group of 23,723 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

ciac.llnl.gov / ciac/bulletins/j-034.shtml
cisco.com / warp/public/770/7xxconn-pub.shtml