CVE-2013-5680

NONECVSS 0.0Weaponized
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 8%CVSS: —Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Heap-based buffer overflow in hfaxd in HylaFAX+ 5.2.4 through 5.5.3, when using LDAP authentication, might allow remote attackers to cause a denial of service (child hang) or execute arbitrary code via a long USER command.

CVSS v3
—
EG Score
0.0(none)
EPSS
94.0%
KEV
Not listed

Published

April 6, 2014

Last Modified

May 6, 2026

References (10)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 37× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-07 13:41 UTCEPSS rescore
  2. 2026-07-06 02:20 UTCEPSS rescore
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  1. 2026-06-18 17:49 UTCEPSS rescore
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  30. 2026-05-28 19:39 UTCEG score recompute
  31. 2026-05-28 19:39 UTCGHSA enrichment
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Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-28683✓ verified
    First seen Oct 2, 2013

    HylaFAX+ 5.2.4 > 5.5.3 - Buffer Overflow

    Open source ↗

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2013-5680?
CVE-2013-5680 is a none vulnerability published on April 6, 2014. Heap-based buffer overflow in hfaxd in HylaFAX+ 5.2.4 through 5.5.3, when using LDAP authentication, might allow remote attackers to cause a denial of service (child hang) or execute arbitrary code via a long USER command.
When was CVE-2013-5680 disclosed?
CVE-2013-5680 was first published in the National Vulnerability Database on April 6, 2014, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2013-5680 actively exploited?
CVE-2013-5680 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 94.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2013-5680?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2013-5680, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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