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CVE-2005-3538

20
FAUCET Score

CVE-2005-3538 describes a critical vulnerability in HylaFAX 4.2.3, specifically within the hfaxd component. When PAM support is disabled, this flaw allows remote attackers to authenticate with arbitrary passwords, thereby gaining unauthorized privileges. With a CVSS score of 7.5, this vulnerability is highly severe, requiring no authentication or complex attack vectors and potentially leading to full compromise (confidentiality, integrity, and availability). 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
4.2.3CPE matchmatch criteria
cpe:2.3:a:ifax_solutions:hylafax:4.2.3:*:*:*:*:*:*:*

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
2.48%
Probability of exploitation in next 30 days
EPSS Percentile
82.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0248 is in the 70th percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Remediation records are not available for this CVE.

References

bugs.hylafax.org / bugzilla/show_bug.cgi
Patch
secunia.com / advisories/18314
PatchVendor Advisory
secunia.com / advisories/18337
PatchVendor Advisory
secunia.com / advisories/18489
gentoo.org / security/en/glsa/glsa-200601-03.xml
Patch
hylafax.org / archive/2005-12/msg00119.php
hylafax.org / content/HylaFAX_4.2.4_release
mandriva.com / security/advisories
securityfocus.com / archive/1/420974/100/0/threaded
securityfocus.com / bid/16150
Patch
vupen.com / english/advisories/2006/0072