Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2013-5680

29
FAUCET Score

CVE-2013-5680 describes a heap-based buffer overflow vulnerability in the hfaxd component of HylaFAX+ versions 5.2.4 through 5.5.3, specifically when LDAP authentication is enabled. This flaw allows remote unauthenticated attackers to trigger a denial of service (child process hang) or potentially execute arbitrary code by sending an excessively long USER command. The vulnerability carries a CVSS score of 6.8, indicating a medium severity with network access, medium attack complexity, and partial impact on confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, public exploit code is available via ExploitDB (EDB-28683), though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
5.2.4CPE matchmatch criteria
cpe:2.3:a:lee_howard:hylafax\+:5.2.4:*:*:*:*:*:*:*
5.2.5CPE matchmatch criteria
cpe:2.3:a:lee_howard:hylafax\+:5.2.5:*:*:*:*:*:*:*
5.2.6CPE matchmatch criteria
cpe:2.3:a:lee_howard:hylafax\+:5.2.6:*:*:*:*:*:*:*
5.2.7CPE matchmatch criteria
cpe:2.3:a:lee_howard:hylafax\+:5.2.7:*:*:*:*:*:*:*
5.2.8CPE matchmatch criteria
cpe:2.3:a:lee_howard:hylafax\+:5.2.8:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.8MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
7.91%
Probability of exploitation in next 30 days
EPSS Percentile
94.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-28683 · Oct 2, 2013
This CVE's current EPSS score of 0.0791 is in the 93rd percentile among its peer group of 19,955 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, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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

Remediation records are not available for this CVE.

References

hylafax.sourceforge.net / news/5.5.4.php
Vendor Advisory
securitytracker.com / id
exploit-db.com / exploits/28683
Exploit
securityfocus.com / archive/1/528943
securityfocus.com / bid/62729