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CVE-2000-0405

38
FAUCET Score

CVE-2000-0405 describes a critical buffer overflow vulnerability in L0pht AntiSniff, specifically affecting atstake antisniff versions. This flaw allows remote attackers to execute arbitrary commands on vulnerable systems by sending a specially crafted, malformed DNS response packet. With a CVSS score of 10.0 (HIGH), it represents a severe risk due to its network-based attack vector, low attack complexity, and complete compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog and showing no active exploitation or community discussion, multiple public exploit proofs-of-concept exist on ExploitDB, indicating the technical feasibility of exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
1.0CPE matchmatch criteria
cpe:2.3:a:atstake:antisniff:1.0:*:researchers:*:*:*:*:*
1.0.1CPE matchmatch criteria
cpe:2.3:a:atstake:antisniff:1.0.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

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

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

Exploit Intelligence

EPSS Score
8.35%
Probability of exploitation in next 30 days
EPSS Percentile
94.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-19918 · May 16, 2000
This CVE's current EPSS score of 0.0835 is in the 91st 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

l0pht.com / advisories/asniff_advisory.txt
ExploitPatchVendor Advisory
osvdb.org / 3179
securityfocus.com / bid/1207