How severe is CVE-2019-14363?

CVE-2019-14363 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-2019-14363 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-14363?

CVE-2019-14363 affects Netgear Wndr3400v3 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-14363?

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-2019-14363 published?

CVE-2019-14363 was published on 2019-07-28 and last updated on 2026-06-17.

CVE-2019-14363

CVE-2019-14363 is a critical-severity vulnerability in Netgear Wndr3400v3 Firmware 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-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Netgear Wndr3400v3 Firmware
Published: 2019-07-28
Last modified: 2026-06-17

Description

A stack-based buffer overflow in the upnpd binary running on NETGEAR WNDR3400v3 routers with firmware version 1.0.1.18_1.0.63 allows an attacker to remotely execute arbitrary code via a crafted UPnP SSDP packet.

Frequently asked questions

What is CVE-2019-14363?: A stack-based buffer overflow in the upnpd binary running on NETGEAR WNDR3400v3 routers with firmware version 1.0.1.18_1.0.63 allows an attacker to remotely execute arbitrary code via a crafted UPnP SSDP packet.
How severe is CVE-2019-14363?: CVE-2019-14363 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-2019-14363 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-14363?: CVE-2019-14363 affects Netgear Wndr3400v3 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-14363?: 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-2019-14363 published?: CVE-2019-14363 was published on 2019-07-28 and last updated on 2026-06-17.

References

https://github.com/reevesrs24/CVE/blob/master/Netgear_WNDR2400v3/upnp_stack_overflow/upnp_stack_overflow.md

Affected products (1)

cpe:2.3:o:netgear:wndr3400v3_firmware:*:*:*:*:*:*:*:*

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