Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2011-0766

25
FAUCET Score

CVE-2011-0766 describes a critical vulnerability in the random number generator used by the Erlang/OTP Crypto application (before 2.0.2.2) and SSH library (before R14B03 and 2.0.5 respectively). This flaw stems from using predictable time-based seeds, making it significantly easier for remote attackers to guess DSA host and SSH session keys. With a CVSS score of 7.8 (High), this vulnerability is easily exploitable over the network with low attack complexity, potentially leading to complete confidentiality compromise. Despite its severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.0.2.1CPE matchmatch criteria
cpe:2.3:a:erlang:crypto:*:*:*:*:*:*:*:*
r11b-5CPE matchmatch criteria
cpe:2.3:a:erlang:erlang\/otp:r11b-5:*:*:*:*:*:*:*
r12b-5CPE matchmatch criteria
cpe:2.3:a:erlang:erlang\/otp:r12b-5:*:*:*:*:*:*:*
r13bCPE matchmatch criteria
cpe:2.3:a:erlang:erlang\/otp:r13b:*:*:*:*:*:*:*
r13b02-1CPE matchmatch criteria
cpe:2.3:a:erlang:erlang\/otp:r13b02-1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.8HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.05%
Probability of exploitation in next 30 days
EPSS Percentile
86.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0305 is in the 75th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

secunia.com / advisories/44709
Vendor Advisory
github.com / erlang/otp/commit/f228601de45c5b53241b103af6616453c50885a5
Patch
kb.cert.org / vuls/id/178990
PatchThird Party AdvisoryUS Government Resource
securityfocus.com / bid/47980
Third Party AdvisoryVDB Entry