What’s Vulnerable › Vulnerabilities

CVE-2011-0766

• Severity: high (CVSS 7.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2011-05-31 · updated 2026-06-16
• Weakness: CWE-310

Description

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.

Affected products

• Erlang Crypto: through 2.0.2.1
• Erlang OTP: r11b-5, r12b-5, r13b, r13b02-1, r13b03, r13b04 (+4)
• Ssh: through 2.0.4

References

• http://secunia.com/advisories/44709
• http://www.kb.cert.org/vuls/id/178990
• http://www.securityfocus.com/bid/47980
• https://github.com/erlang/otp/commit/f228601de45c5b53241b103af6616453c50885a5
• http://secunia.com/advisories/44709
• http://www.kb.cert.org/vuls/id/178990
• http://www.securityfocus.com/bid/47980
• https://github.com/erlang/otp/commit/f228601de45c5b53241b103af6616453c50885a5

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