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CVE-2001-0521

34
FAUCET Score

CVE-2001-0521 describes a critical vulnerability in Aladdin eSafe Gateway versions 3.0 and earlier. This flaw allows remote attackers to bypass HTML SCRIPT filtering by using UNICODE encoding within SCRIPT tags. With a CVSS score of 7.5 (HIGH), it presents a significant risk, enabling unauthorized access, data manipulation, and denial of service. While not listed in CISA's KEV catalog, public exploit code exists, and the vulnerability garners notable community discussion, indicating potential for exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
3.0CPE matchmatch criteria
cpe:2.3:a:aladdin_knowledge_systems:esafe_gateway:3.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.38%
Probability of exploitation in next 30 days
EPSS Percentile
82.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-20891 · May 29, 2001
This CVE's current EPSS score of 0.0238 is in the 68th percentile among its peer group of 51,466 CVEs.

Social Chatter

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

archives.neohapsis.com / archives/bugtraq/2001-05/0285.html
ExploitVendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/6580