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CVE-2012-4434

29
FAUCET Score

CVE-2012-4434 describes a critical vulnerability in fwknop before version 2.0.3, allowing remote authenticated users to trigger a denial of service or potentially execute arbitrary code. With a CVSS score of 8.8 (High), this vulnerability is easily exploitable over the network with low attack complexity, potentially leading to high impact on confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.0.3CPE matchmatch criteria
cpe:2.3:a:cipherdyne:fwknop:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.31%
Probability of exploitation in next 30 days
EPSS Percentile
87.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0331 is in the 86th percentile among its peer group of 17,822 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 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

Remediation records are not available for this CVE.

References

cipherdyne.org / blog/2012/09/software-release-fwknop-2.0.3.html
Release NotesVendor Advisory
openwall.com / lists/oss-security/2012/09/19/2
ExploitMailing ListThird Party Advisory
openwall.com / lists/oss-security/2012/09/20/4
ExploitMailing ListThird Party Advisory