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CVE-2008-4100

19
FAUCET Score

CVE-2008-4100 describes a vulnerability in GNU adns versions 1.4 and earlier, where the use of a fixed source port and sequential DNS transaction IDs simplifies DNS response spoofing for remote attackers. This issue carries a CVSS score of 6.4, indicating a medium severity risk with low attack complexity, potentially leading to partial integrity and availability impacts. Despite the vendor stating this is intended behavior for trusted environments, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.4CPE matchmatch criteria
cpe:2.3:a:gnu:adns:*:*:*:*:*:*:*:*
0.1CPE matchmatch criteria
cpe:2.3:a:gnu:adns:0.1:*:*:*:*:*:*:*
0.2CPE matchmatch criteria
cpe:2.3:a:gnu:adns:0.2:*:*:*:*:*:*:*
0.3CPE matchmatch criteria
cpe:2.3:a:gnu:adns:0.3:*:*:*:*:*:*:*
0.4CPE matchmatch criteria
cpe:2.3:a:gnu:adns:0.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.4MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.49%
Probability of exploitation in next 30 days
EPSS Percentile
71.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0149 is in the 54th percentile among its peer group of 23,684 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Vendor Advisories (1)

redhatCVE-2008-4100Moderate

adns: DNS spoofing flaw

Sep 11, 2008

References

bugs.debian.org / cgi-bin/bugreport.cgi
exploit-db.com / exploits/6197
openwall.com / lists/oss-security/2008/09/11/1
openwall.com / lists/oss-security/2008/09/16/4