CVE-2021-25328

Name: CVE-2021-25328
Creator: NVD / NIST
Published: 2021-04-09T13:15:13.223+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 3.94%

Last modified Jun 17, 2026

CVE-2021-25328 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Skyworth Digital Technology RN510 V.3.1.0.4 RN510 V.3.1.0.4 contains a buffer overflow vulnerability in /cgi-bin/app-staticIP.asp. An authenticated attacker can send a specially crafted request to endpoint which can lead to a denial of service (DoS) or possible code execution on the device.. EPSS estimates a 3.94% chance of exploitation in the next 30 days.

Description

Skyworth Digital Technology RN510 V.3.1.0.4 RN510 V.3.1.0.4 contains a buffer overflow vulnerability in /cgi-bin/app-staticIP.asp. An authenticated attacker can send a specially crafted request to endpoint which can lead to a denial of service (DoS) or possible code execution on the device.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

3.94%

89.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

Affected Software

Vendor	Product	Versions
Skyworthdigital	Rn510 Firmware	3.1.0.4

References

http://packetstormsecurity.com/files/162450/Shenzhen-Skyworth-RN510-Buffer-Overflow.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2021/May/5Exploit, Mailing List, Third Party Advisory
https://s3curityb3ast.github.io/KSA-Dev-011.mdExploit, Third Party Advisory
http://packetstormsecurity.com/files/162450/Shenzhen-Skyworth-RN510-Buffer-Overflow.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2021/May/5Exploit, Mailing List, Third Party Advisory
https://s3curityb3ast.github.io/KSA-Dev-011.mdExploit, Third Party Advisory

Timeline

Published: Apr 9, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-25328?

How severe is CVE-2021-25328?

CVE-2021-25328 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 3.94% probability of exploitation in the next 30 days.

How do I fix CVE-2021-25328?

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-2021-25328?

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

Scan your code now

Source: NVD / NIST