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Fencer Vulns
high 7.5

CVE-2008-0166 in the critical feed json

OpenSSL 0.9.8c-1 up to versions before 0.9.8g-9 on Debian-based operating systems uses a random number generator that generates predictable…

published 2008-05-13 18 y ago modified 2026-06-16 4 mo ago also EUVD-2008-0178

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
70.7%
EPSS 70.7% chance of exploitation in 30 days, percentile 99.4%
public exploits
3
Exploit-DB

Summary

OpenSSL 0.9.8c-1 up to versions before 0.9.8g-9 on Debian-based operating systems uses a random number generator that generates predictable numbers, which makes it easier for remote attackers to conduct brute force guessing attacks against cryptographic keys.

Patch / fix

  • openssh Debian 14, Debian 13, Debian 12 4.7p1-9
  • openssl Debian 14, Debian 13, Debian 12 0.9.8g-9

debian advisories DEBIAN-CVE-2008-0166

Timeline

  1. Published
  2. First public exploit (EDB-5622)

Exploit prediction

70.72% chance of exploitation in the next 30 days, higher than 99.4% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-5720 OpenSSL 0.9.8c-1 < 0.9.8g-9 (Debian and Derivatives) - Predictable PRNG Brute Force SSH remote, 2008-06-01
  • EDB-5632 OpenSSL 0.9.8c-1 < 0.9.8g-9 (Debian and Derivatives) - Predictable PRNG Brute Force SSH (Ruby) remote, 2008-05-16
  • EDB-5622 OpenSSL 0.9.8c-1 < 0.9.8g-9 (Debian and Derivatives) - Predictable PRNG Brute Force SSH remote, 2008-05-15
  • securityfocus.com http://www.securityfocus.com/bid/29179 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:C/I:N/A:N

Classification

Weakness
  • CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.