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CVE-2002-0491

25
FAUCET Score

CVE-2002-0491 describes an authentication bypass vulnerability in AlGuest 1.0, where remote attackers can gain administrative privileges by setting an arbitrary value for the "admin" cookie. This flaw is rated with a critical CVSS score of 10.0, indicating a network-based attack with low complexity, requiring no authentication, and leading to complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
1.0CPE matchmatch criteria
cpe:2.3:a:alguest:alguest:1.0:*:*:*:*:*:*:*

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
3.24%
Probability of exploitation in next 30 days
EPSS Percentile
87.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0324 is in the 77th percentile among its peer group of 51,455 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

iss.net / security_center/static/8623.php
Vendor Advisory
securityfocus.com / archive/1/263902
Vendor Advisory
securityfocus.com / bid/4355
ExploitVendor Advisory