Is CVE-2011-0766 being actively exploited?

CVE-2011-0766 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2011-0766?

CVE-2011-0766 has a CVSS 2.0 base score of 7.8 (HIGH).

CVE-2011-0766

HIGH · CVSS 7.8EPSS 3.1%EU EUVD

The random number generator in the Crypto application before 2.0.2.2, and SSH before 2.0.5, as used in the Erlang/OTP ssh library before R14B03, uses predictable seeds based on the current time, which makes it easier for remote attackers to guess DSA host and SSH session keys.

Key facts

CVSS score: 7.8 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:L/Au:N/C:C/I:N/A:N
Weakness (CWE): CWE-310
EPSS score: 3.1% (88th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2011-0778)
Published: May 31, 2011
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-0778 in the EU Vulnerability Database. Last updated in EUVD on September 17, 2024.

View on the EU Vulnerability Database

Affected products

erlang / crypto
erlang / erlang/otp
erlang / erlang/otp
erlang / erlang/otp
erlang / erlang/otp
erlang / erlang/otp
erlang / erlang/otp
erlang / erlang/otp
erlang / erlang/otp
erlang / erlang/otp
erlang / erlang/otp
ssh / ssh

References

http://secunia.com/advisories/44709(Vendor Advisory)
http://www.kb.cert.org/vuls/id/178990(Patch, Third Party Advisory, US Government Resource)
http://www.securityfocus.com/bid/47980(Third Party Advisory, VDB Entry)
https://github.com/erlang/otp/commit/f228601de45c5b53241b103af6616453c50885a5(Patch)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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