What’s Vulnerable › Vulnerabilities

CVE-2013-4100

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-11-04 · updated 2026-06-16
• Weakness: CWE-20

Description

Cryptocat before 2.0.22 has Remote Denial of Service via username

Affected products

• Cryptocat: before 2.0.22 — fixed in 2.0.22

How to fix

Upgrade to a fixed version: Cryptocat 2.0.22. Check the vendor advisory for mitigations.

References

• https://tobtu.com/decryptocat.php
• https://vuldb.com/?id.9439
• https://www.openwall.com/lists/oss-security/2013/07/10/15
• https://www.securityfocus.com/bid/61094
• https://tobtu.com/decryptocat.php
• https://vuldb.com/?id.9439
• https://www.openwall.com/lists/oss-security/2013/07/10/15
• https://www.securityfocus.com/bid/61094

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