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-1999-0685

23
FAUCET Score

CVE-1999-0685 describes a buffer overflow vulnerability in Netscape Communicator, specifically affecting versions 4.06, 4.5, 4.6, 4.51, and 4.61. This flaw allows remote attackers to execute arbitrary code by crafting malicious EMBED tags within the pluginspage option. The vulnerability has a CVSS score of 5.1 (Medium), indicating a network-based attack with high access complexity, potentially leading to partial confidentiality, integrity, and availability compromise. While not listed in CISA's KEV catalog, an exploit is publicly available on ExploitDB, though there is no evidence of active exploitation, Metasploit modules, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
4.5CPE matchmatch criteria
cpe:2.3:a:netscape:communicator:4.5:*:*:*:*:*:*:*
4.06CPE matchmatch criteria
cpe:2.3:a:netscape:communicator:4.06:*:*:*:*:*:*:*
4.6CPE matchmatch criteria
cpe:2.3:a:netscape:communicator:4.6:*:*:*:*:*:*:*
4.51CPE matchmatch criteria
cpe:2.3:a:netscape:communicator:4.51:*:*:*:*:*:*:*
4.61CPE matchmatch criteria
cpe:2.3:a:netscape:communicator:4.61:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.1MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.59%
Probability of exploitation in next 30 days
EPSS Percentile
73.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-19486 · Sep 2, 1999
This CVE's current EPSS score of 0.0159 is in the 49th percentile among its peer group of 19,955 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, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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

securityfocus.com / bid/618