CVE-2016-2054

Multiple buffer overflows in 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 execute arbitrary code or cause a denial of service (daemon crash) via a long filename, involving handling a "config" command.

Published: 2016-04-13 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2016-2054 is rated High Risk (71.6/100): CVSS Critical severity, with high exploitation likelihood (EPSS 5.63%, 92th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-2054

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 5.46% 5.63% +0.18%
2 2026-06-05 4.09% 5.46% +1.36%
3 2025-07-25 — 4.09% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-2054

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.0 CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2016-2054

OS Trackers for CVE-2016-2054

vendor priority summary link
debian not yet assigned CVE-2016-2054 not yet assigned priority: Debian including 1 source packages (xymon), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2016-2054
ubuntu medium CVE-2016-2054 medium priority: Ubuntu including 1 source packages (xymon), 11 status rows across 11 suites (artful, bionic, cosmic, disco, precise, trusty, upstream, wily, xenial, yakkety, zesty): not-affected 7, ignored 2, DNE 1, released 1. https://ubuntu.com/security/CVE-2016-2054

Affected software / configurations for CVE-2016-2054

Vendor Product Version Raw CPE
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
xymon xymon 4.1.0 cpe:2.3:a:xymon:xymon:4.1.0:*:*:*:*:*:*:*
xymon xymon 4.1.1 cpe:2.3:a:xymon:xymon:4.1.1:*:*:*:*:*:*:*
xymon xymon 4.1.2 cpe:2.3:a:xymon:xymon:4.1.2:*:*:*:*:*:*:*
xymon xymon 4.1.2 cpe:2.3:a:xymon:xymon:4.1.2:p1:*:*:*:*:*:*
xymon xymon 4.1.2 cpe:2.3:a:xymon:xymon:4.1.2:p2:*:*:*:*:*:*
xymon xymon 4.2 cpe:2.3:a:xymon:xymon:4.2:alfa:*:*:*:*:*:*
xymon xymon 4.2 cpe:2.3:a:xymon:xymon:4.2:beta20060605:*:*:*:*:*:*
xymon xymon 4.2 cpe:2.3:a:xymon:xymon:4.2:rc20060712:*:*:*:*:*:*
xymon xymon 4.2.0 cpe:2.3:a:xymon:xymon:4.2.0:*:*:*:*:*:*:*
xymon xymon 4.2.2 cpe:2.3:a:xymon:xymon:4.2.2:*:*:*:*:*:*:*
xymon xymon 4.2.2 cpe:2.3:a:xymon:xymon:4.2.2:rc1:*:*:*:*:*:*
xymon xymon 4.2.3 cpe:2.3:a:xymon:xymon:4.2.3:*:*:*:*:*:*:*
xymon xymon 4.2.3 cpe:2.3:a:xymon:xymon:4.2.3:rc1:*:*:*:*:*:*
xymon xymon 4.3.0 cpe:2.3:a:xymon:xymon:4.3.0:*:*:*:*:*:*:*
xymon xymon 4.3.0 cpe:2.3:a:xymon:xymon:4.3.0:beta1:*:*:*:*:*:*
xymon xymon 4.3.0 cpe:2.3:a:xymon:xymon:4.3.0:beta2:*:*:*:*:*:*
xymon xymon 4.3.0 cpe:2.3:a:xymon:xymon:4.3.0:beta3:*:*:*:*:*:*
xymon xymon 4.3.0 cpe:2.3:a:xymon:xymon:4.3.0:rc1:*:*:*:*:*:*
xymon xymon 4.3.1 cpe:2.3:a:xymon:xymon:4.3.1:*:*:*:*:*:*:*
xymon xymon 4.3.2 cpe:2.3:a:xymon:xymon:4.3.2:*:*:*:*:*:*:*
xymon xymon 4.3.3 cpe:2.3:a:xymon:xymon:4.3.3:*:*:*:*:*:*:*
xymon xymon 4.3.4 cpe:2.3:a:xymon:xymon:4.3.4:*:*:*:*:*:*:*
xymon xymon 4.3.5 cpe:2.3:a:xymon:xymon:4.3.5:*:*:*:*:*:*:*
xymon xymon 4.3.6 cpe:2.3:a:xymon:xymon:4.3.6:*:*:*:*:*:*:*
xymon xymon 4.3.7 cpe:2.3:a:xymon:xymon:4.3.7:*:*:*:*:*:*:*
xymon xymon 4.3.8 cpe:2.3:a:xymon:xymon:4.3.8:*:*:*:*:*:*:*
xymon xymon 4.3.9 cpe:2.3:a:xymon:xymon:4.3.9:*:*:*:*:*:*:*
xymon xymon 4.3.10 cpe:2.3:a:xymon:xymon:4.3.10:*:*:*:*:*:*:*
xymon xymon 4.3.11 cpe:2.3:a:xymon:xymon:4.3.11:*:*:*:*:*:*:*
xymon xymon 4.3.12 cpe:2.3:a:xymon:xymon:4.3.12:*:*:*:*:*:*:*
xymon xymon 4.3.13 cpe:2.3:a:xymon:xymon:4.3.13:*:*:*:*:*:*:*
xymon xymon 4.3.14 cpe:2.3:a:xymon:xymon:4.3.14:*:*:*:*:*:*:*
xymon xymon 4.3.15 cpe:2.3:a:xymon:xymon:4.3.15:*:*:*:*:*:*:*
xymon xymon 4.3.16 cpe:2.3:a:xymon:xymon:4.3.16:*:*:*:*:*:*:*
xymon xymon 4.3.17 cpe:2.3:a:xymon:xymon:4.3.17:*:*:*:*:*:*:*
xymon xymon 4.3.18 cpe:2.3:a:xymon:xymon:4.3.18:*:*:*:*:*:*:*
xymon xymon 4.3.19 cpe:2.3:a:xymon:xymon:4.3.19:*:*:*:*:*:*:*
xymon xymon 4.3.19 cpe:2.3:a:xymon:xymon:4.3.19:rc1:*:*:*:*:*:*
xymon xymon 4.3.20 cpe:2.3:a:xymon:xymon:4.3.20:*:*:*:*:*:*:*
xymon xymon 4.3.21 cpe:2.3:a:xymon:xymon:4.3.21:*:*:*:*:*:*:*
xymon xymon 4.3.22 cpe:2.3:a:xymon:xymon:4.3.22:*:*:*:*:*:*:*
xymon xymon 4.3.23 cpe:2.3:a:xymon:xymon:4.3.23:*:*:*:*:*:*:*
xymon xymon 4.3.24 cpe:2.3:a:xymon:xymon:4.3.24:*:*:*:*:*:*:*

References for CVE-2016-2054

cvelogic Threat Intelligence