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CVE-2000-0406

12
FAUCET Score

CVE-2000-0406 describes a vulnerability in Netscape Communicator versions prior to 4.73 and Navigator 4.07, where improper SSL certificate validation allows remote attackers to redirect traffic from legitimate web servers to malicious ones, potentially stealing information. The vulnerability has a low CVSS score of 2.6, indicating a network attack vector with high attack complexity and a partial impact on confidentiality. Despite its age, there is no evidence of active exploitation, public exploit code, or significant community discussion or media coverage surrounding this issue.

Impacted Technologies

VendorProductVersion(s)CPE
4.0CPE matchmatch criteria
cpe:2.3:a:netscape:communicator:4.0:*:*:*:*:*:*:*
4.05CPE matchmatch criteria
cpe:2.3:a:netscape:communicator:4.05:*:*:*:*:*:*:*
4.5CPE matchmatch criteria
cpe:2.3:a:netscape:communicator:4.5:*:*:*:*:*:*:*
4.5_betaCPE matchmatch criteria
cpe:2.3:a:netscape:communicator:4.5_beta:*:*:*:*:*:*:*
4.06CPE matchmatch criteria
cpe:2.3:a:netscape:communicator:4.06:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.6LOW

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.03%
Probability of exploitation in next 30 days
EPSS Percentile
60.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0103 is in the 40th percentile among its peer group of 1,506 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 0.3 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

Vendor Advisories (1)

redhatCVE-2000-0406

security flaw

May 12, 2000

References

acrossecurity.com / aspr/ASPR-2000-04-06-1-PUB.txt
cert.org / advisories/CA-2000-05.html
Third Party AdvisoryUS Government Resource
redhat.com / support/errata/RHSA-2000-028.html
securityfocus.com / bid/1188