How severe is CVE-2016-2054?

CVE-2016-2054 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-2054 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-2054?

CVE-2016-2054 primarily affects Xymon. In total, 44 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-2054?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2016-2054 published?

CVE-2016-2054 was published on 2016-04-13 and last updated on 2026-06-17.

CVE-2016-2054

CVE-2016-2054 is a critical-severity vulnerability in Xymon with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Xymon
Published: 2016-04-13
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2016-2054?: CVE-2016-2054 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-2054 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-2054?: CVE-2016-2054 primarily affects Xymon. In total, 44 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-2054?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2016-2054 published?: CVE-2016-2054 was published on 2016-04-13 and last updated on 2026-06-17.

References

Affected products (44)

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

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