How severe is CVE-2019-13484?

CVE-2019-13484 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-2019-13484 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-13484?

CVE-2019-13484 primarily affects Xymon. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-13484?

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-2019-13484 published?

CVE-2019-13484 was published on 2019-08-27 and last updated on 2026-06-17.

CVE-2019-13484

CVE-2019-13484 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: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Xymon
Published: 2019-08-27
Last modified: 2026-06-17

Description

In Xymon through 4.3.28, a buffer overflow exists in the status-log viewer CGI because of   expansion in appfeed.c.

Frequently asked questions

What is CVE-2019-13484?: In Xymon through 4.3.28, a buffer overflow exists in the status-log viewer CGI because of   expansion in appfeed.c.
How severe is CVE-2019-13484?: CVE-2019-13484 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-2019-13484 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-13484?: CVE-2019-13484 primarily affects Xymon. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-13484?: 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-2019-13484 published?: CVE-2019-13484 was published on 2019-08-27 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:xymon:xymon:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

More vulnerabilities in Xymon

CVE-2019-13486 — Critical (CVSS 9.8): In Xymon through 4.3.28, a stack-based buffer overflow exists in the status-log viewer component because of  …
CVE-2019-13485 — Critical (CVSS 9.8): In Xymon through 4.3.28, a stack-based buffer overflow vulnerability exists in the history viewer component via a long…
CVE-2019-13455 — Critical (CVSS 9.8): In Xymon through 4.3.28, a stack-based buffer overflow vulnerability exists in the alert acknowledgment CGI tool…
CVE-2019-13452 — Critical (CVSS 9.8): In Xymon through 4.3.28, a buffer overflow vulnerability exists in reportlog.c.
CVE-2019-13451 — Critical (CVSS 9.8): In Xymon through 4.3.28, a buffer overflow vulnerability exists in history.c.
CVE-2019-13273 — Critical (CVSS 9.8): In Xymon through 4.3.28, a buffer overflow vulnerability exists in the csvinfo CGI script. The overflow may be…

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