CVE-2020-28373

Name: CVE-2020-28373
Creator: NVD / NIST
Published: 2020-11-09T22:15:13.413+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.00%

Last modified Jun 17, 2026

CVE-2020-28373 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. upnpd on certain NETGEAR devices allows remote (LAN) attackers to execute arbitrary code via a stack-based buffer overflow. This affects R6400v2 V1.0.4.102_10.0.75, R6400 V1.0.1.62_1.0.41, R7000P V1.3.2.126_10.1.66, XR300 V1.0.3.50_10.3.36, R8000 V1.0.4.62, R8300 V1.0.2.136, R8500 V1.0.2.136, R7300DST V1.0.0.74, R7850 V1.0.5.64, R7900 V1.0.4.30, RAX20 V1.0.2.64, RAX80 V1.0.3.102, and R6250 V1.0.4.44.. EPSS estimates a 1.00% chance of exploitation in the next 30 days.

Description

upnpd on certain NETGEAR devices allows remote (LAN) attackers to execute arbitrary code via a stack-based buffer overflow. This affects R6400v2 V1.0.4.102_10.0.75, R6400 V1.0.1.62_1.0.41, R7000P V1.3.2.126_10.1.66, XR300 V1.0.3.50_10.3.36, R8000 V1.0.4.62, R8300 V1.0.2.136, R8500 V1.0.2.136, R7300DST V1.0.0.74, R7850 V1.0.5.64, R7900 V1.0.4.30, RAX20 V1.0.2.64, RAX80 V1.0.3.102, and R6250 V1.0.4.44.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.00%

58.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Netgear	R6400v2 Firmware	1.0.4.102_10.0.75
Netgear	R6400 Firmware	1.0.1.62_1.0.41
Netgear	R7000p Firmware	1.3.2.126_10.1.66
Netgear	Xr300 Firmware	1.0.3.50_10.3.36
Netgear	R8000 Firmware	1.0.4.62
Netgear	R8300 Firmware	1.0.2.136
Netgear	R8500 Firmware	1.0.2.136
Netgear	R7300dst Firmware	1.0.0.74
Netgear	R7850 Firmware	1.0.5.64
Netgear	R7900 Firmware	1.0.4.30
Netgear	Rax20 Firmware	1.0.2.64
Netgear	Rax80 Firmware	1.0.3.102
Netgear	R6250 Firmware	1.0.4.44

References

https://github.com/cpeggg/Netgear-upnpd-pocBroken Link, Third Party Advisory
https://github.com/cpeggg/Netgear-upnpd-pocBroken Link, Third Party Advisory

Timeline

Published: Nov 9, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-28373?

How severe is CVE-2020-28373?

CVE-2020-28373 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.00% probability of exploitation in the next 30 days.

How do I fix CVE-2020-28373?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-28373?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST