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CVE-2003-0520

15
FAUCET Score

CVE-2003-0520 describes a denial-of-service vulnerability in Trillian 1.0 Pro and 0.74 Freeware, where remote attackers can crash the application by manipulating the "TypingUser" string within a TypingUser message. This vulnerability has a CVSS score of 5.0, indicating a medium severity, with a low attack complexity and no authentication required, leading to a partial availability impact. There is no evidence of active exploitation, nor is there publicly available exploit code in Metasploit or ExploitDB. The vulnerability has received minimal community attention and media coverage, suggesting it is not a widely discussed or exploited threat.

Impacted Technologies

VendorProductVersion(s)CPE
0.74CPE matchmatch criteria
cpe:2.3:a:cerulean_studios:trillian:0.74:*:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:cerulean_studios:trillian:1.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.26%
Probability of exploitation in next 30 days
EPSS Percentile
66.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0126 is in the 46th percentile among its peer group of 23,705 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 0.4 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

marc.info
securityfocus.com / bid/8107
Vendor Advisory