CVE-2016-2055

HIGHNVD 7.57.5—Weaponized

7.5

xymond/xymond.c in xymond in Xymon 4.1.x, 4.2.x, and 4.3.x before 4.3.25 allow remote attackers to read arbitrary files in the configuration directory via a "config" command.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 98.6%
KEV: Not listed

Published

April 13, 2016

Last Modified

May 6, 2026

References (8)

cve@mitrehttp://packetstormsecurity.com/files/135758/Xymon-4.3.x-Buffer-Overflow-Code-Execution-Information-Disclosure.html
cve@mitrehttp://www.debian.org/security/2016/dsa-3495
cve@mitrehttp://www.securityfocus.com/archive/1/537522/100/0/threaded
cve@mitrehttps://sourceforge.net/p/xymon/code/7890/
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/135758/Xymon-4.3.x-Buffer-Overflow-Code-Execution-Information-Disclosure.html
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2016/dsa-3495
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/537522/100/0/threaded
af854a3a-2127-422b-91ae-364da2661108https://sourceforge.net/p/xymon/code/7890/

Data Freshness Timeline

(refreshed 10× in last 7d / 20× 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.

2026-06-08 14:14 UTCEPSS rescore
2026-06-07 15:22 UTCEPSS rescore
2026-06-07 15:22 UTCEPSS rescore
2026-06-06 21:29 UTCOSV refresh
2026-06-06 13:45 UTCEPSS rescore
2026-06-05 22:44 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-02 20:10 UTCEPSS rescore
2026-06-01 13:49 UTCEPSS rescore
2026-06-01 13:49 UTCEPSS rescore
2026-05-31 00:14 UTCEPSS rescore
2026-05-29 13:41 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore
2026-05-24 16:43 UTCEPSS rescore

Publicly available exploits

(1 reference)

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

Metasploitauxiliary/gather/xymon_info✓ verified
First seen Jan 1, 2016
Xymon Daemon Gather Information
Open source ↗

Frequently asked(5)

What is CVE-2016-2055?

CVE-2016-2055 is a high vulnerability published on April 13, 2016. xymond/xymond.c in xymond in Xymon 4.1.x, 4.2.x, and 4.3.x before 4.3.25 allow remote attackers to read arbitrary files in the configuration directory via a "config" command.

When was CVE-2016-2055 disclosed?

CVE-2016-2055 was first published in the National Vulnerability Database on April 13, 2016, 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-2016-2055 actively exploited?

CVE-2016-2055 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2016-2055?

CVE-2016-2055 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2016-2055?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-2055, 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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CVE-2016-2055

📅 Published

🔄 Last Modified

🔗 References (8)