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CVE-2021-25328

27
FAUCET Score

CVE-2021-25328 is a buffer overflow vulnerability affecting Skyworth Digital Technology RN510 V.3.1.0.4 firmware. An authenticated attacker can exploit this flaw by sending a specially crafted request to the /cgi-bin/app-staticIP.asp endpoint. This can result in a denial of service or potentially remote code execution on the device, earning a CVSS score of 8.8 (High) due to its network attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While the vulnerability is severe, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
3.1.0.4CPE matchmatch criteria
cpe:2.3:o:skyworthdigital:rn510_firmware:3.1.0.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.94%
Probability of exploitation in next 30 days
EPSS Percentile
89.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0394 is in the 89th percentile among its peer group of 17,822 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/162450/Shenzhen-Skyworth-RN510-Buffer-Overflow.html
ExploitThird Party AdvisoryVDB Entry
seclists.org / fulldisclosure/2021/May/5
ExploitMailing ListThird Party Advisory
s3curityb3ast.github.io / KSA-Dev-011.md
ExploitThird Party Advisory