How severe is CVE-2019-16914?

CVE-2019-16914 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2019-16914 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-16914?

CVE-2019-16914 primarily affects Netgate Pfsense. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-16914?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-16914 published?

CVE-2019-16914 was published on 2019-09-26 and last updated on 2026-06-17.

CVE-2019-16914

CVE-2019-16914 is a medium-severity vulnerability in Netgate Pfsense with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Netgate Pfsense
Published: 2019-09-26
Last modified: 2026-06-17

Description

An XSS issue was discovered in pfSense through 2.4.4-p3. In services_captiveportal_mac.php, the username and delmac parameters are displayed without sanitization.

Frequently asked questions

What is CVE-2019-16914?: An XSS issue was discovered in pfSense through 2.4.4-p3. In services_captiveportal_mac.php, the username and delmac parameters are displayed without sanitization.
How severe is CVE-2019-16914?: CVE-2019-16914 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2019-16914 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-16914?: CVE-2019-16914 primarily affects Netgate Pfsense. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-16914?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-16914 published?: CVE-2019-16914 was published on 2019-09-26 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:a:netgate:pfsense:*:*:*:*:*:*:*:*
cpe:2.3:a:netgate:pfsense:2.4.4:-:*:*:*:*:*:*
cpe:2.3:a:netgate:pfsense:2.4.4:p1:*:*:*:*:*:*
cpe:2.3:a:netgate:pfsense:2.4.4:p2:*:*:*:*:*:*
cpe:2.3:a:netgate:pfsense:2.4.4:p3:*:*:*:*:*:*

More vulnerabilities in Netgate Pfsense

CVE-2019-16915 — Critical (CVSS 9.8): An issue was discovered in pfSense through 2.4.4-p3. widgets/widgets/picture.widget.php uses the widgetkey parameter…
CVE-2019-12585 — Critical (CVSS 9.8): Apcupsd 0.3.91_5, as used in pfSense through 2.4.4-RELEASE-p3 and other products, has an Arbitrary Command Execution…
CVE-2020-21487 — Critical (CVSS 9.6): Cross Site Scripting vulnerability found in Netgate pfSense 2.4.4 and ACME package v.0.6.3 allows attackers to execute…
CVE-2023-48123 — High (CVSS 8.8): An issue in Netgate pfSense Plus v.23.05.1 and before and pfSense CE v.2.7.0 allows a remote attacker to execute…
CVE-2023-42326 — High (CVSS 8.8): An issue in Netgate pfSense v.2.7.0 allows a remote attacker to execute arbitrary code via a crafted request to the…
CVE-2023-27253 — High (CVSS 8.8): A command injection vulnerability in the function restore_rrddata() of Netgate pfSense v2.7.0 allows authenticated…

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