What is CVE-2013-2260?

CVE-2013-2260 is a critical-severity vulnerability in Cryptocat, classified under Insufficient Entropy. CVSS score: 9.8/10. Published 2019-11-04.

How severe is CVE-2013-2260?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Cryptocat

CVE-2013-2260

Cryptocat before 2.0.22: Cryptocat.random() Function Array Key has Entropy Weakness

Published 2019-11-04 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.022 (81.5th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000

Affected products

Cryptocat — versions before 2.0.22
Cryptocat Project

Weakness classification (CWE)

CWE-331 — Insufficient Entropy

References

www.openwall.com/lists/oss-security/2013/07/10/15 (Mailing List, Third Party Advisory)
tobtu.com/decryptocat.php (Vendor Advisory)
vuldb.com/ (Permissions Required, Third Party Advisory)
www.securityfocus.com/bid/61091/info (VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2013-2260?: CVE-2013-2260 is a critical-severity vulnerability in Cryptocat, classified under Insufficient Entropy. CVSS score: 9.8/10. Published 2019-11-04.
How severe is CVE-2013-2260?: Critical severity. CVSS v3 base score is 9.8 out of 10.