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CVE-2008-5659

32
FAUCET Score

CVE-2008-5659 describes a predictable seed vulnerability in the gnu.java.security.util.PRNG class within GNU Classpath versions 0.97.2 and earlier. This flaw, stemming from the use of system time for seeding, allows attackers to more easily brute force cryptographic routines, such as DSA private keys, that rely on this class for randomness. The vulnerability carries a CVSS score of 7.5, indicating high severity due to its network-based attack vector, low attack complexity, and potential for partial compromise of confidentiality, integrity, and availability. While not actively exploited or on the KEV catalog, public exploit code exists on ExploitDB, though there is minimal community discussion or media coverage surrounding this decade-old issue.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.97.2CPE matchmatch criteria
cpe:2.3:a:gnu:classpath:*:*:*:*:*:*:*:*
0.6CPE matchmatch criteria
cpe:2.3:a:gnu:classpath:0.6:*:*:*:*:*:*:*
0.7CPE matchmatch criteria
cpe:2.3:a:gnu:classpath:0.7:*:*:*:*:*:*:*
0.8CPE matchmatch criteria
cpe:2.3:a:gnu:classpath:0.8:*:*:*:*:*:*:*
0.9CPE matchmatch criteria
cpe:2.3:a:gnu:classpath:0.9:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.35%
Probability of exploitation in next 30 days
EPSS Percentile
87.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-32673 · Dec 5, 2008
This CVE's current EPSS score of 0.0335 is in the 78th percentile among its peer group of 51,466 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

Vendor Advisories (1)

redhatCVE-2008-5659Low

gnu.java.security.util.PRNG produces easily predictable values

Dec 8, 2008

References

gcc.gnu.org / bugzilla/show_bug.cgi
exchange.xforce.ibmcloud.com / vulnerabilities/47574
openwall.com / lists/oss-security/2008/12/06/2