How severe is CVE-2019-20076?

CVE-2019-20076 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-2019-20076 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-20076?

CVE-2019-20076 affects Netis-systems Dl4343 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-20076?

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

When was CVE-2019-20076 published?

CVE-2019-20076 was published on 2019-12-30 and last updated on 2026-06-17.

CVE-2019-20076

CVE-2019-20076 is a medium-severity vulnerability in Netis-systems Dl4343 Firmware 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% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Netis-systems Dl4343 Firmware
Published: 2019-12-30
Last modified: 2026-06-17

Description

On Netis DL4323 devices, XSS exists via the form2Ddns.cgi username parameter (DynDns settings of the Dynamic DNS Configuration).

Frequently asked questions

What is CVE-2019-20076?: On Netis DL4323 devices, XSS exists via the form2Ddns.cgi username parameter (DynDns settings of the Dynamic DNS Configuration).
How severe is CVE-2019-20076?: CVE-2019-20076 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-2019-20076 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-20076?: CVE-2019-20076 affects Netis-systems Dl4343 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-20076?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-20076 published?: CVE-2019-20076 was published on 2019-12-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:netis-systems:dl4343_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Netis-systems Dl4343 Firmware

CVE-2019-20074 — High (CVSS 8.8): On Netis DL4323 devices, any user role can view sensitive information, such as a user password or the FTP password, via…
CVE-2019-20071 — Medium (CVSS 6.5): On Netis DL4323 devices, CSRF exists via form2logaction.cgi to delete all logs.
CVE-2019-20075 — Medium (CVSS 6.1): On Netis DL4323 devices, pingrtt_v6.html has XSS (Ping6 Diagnostic).
CVE-2019-20073 — Medium (CVSS 6.1): On Netis DL4323 devices, XSS exists via the form2userconfig.cgi username parameter (User Account Configuration).
CVE-2019-20072 — Medium (CVSS 6.1): On Netis DL4323 devices, XSS exists via the form2Ddns.cgi hostname parameter (Dynamic DNS Configuration).
CVE-2019-20070 — Medium (CVSS 6.1): On Netis DL4323 devices, XSS exists via the urlFQDN parameter to form2url.cgi (aka the Keyword field of the URL…

All CVEs affecting Netis-systems Dl4343 Firmware →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →