HOMEVULNERABILITIESCVE-2021-25327
MEDIUM

CVE-2021-25327

CWE-79Published: April 9, 2021· Updated: Jun 17, 2026

6.5
CVSS v3.1

Official Description

Skyworth Digital Technology RN510 V.3.1.0.4 contains a cross-site request forgery (CSRF) vulnerability in /cgi-bin/net-routeadd.asp and /cgi-bin/sec-urlfilter.asp. Missing CSRF protection in devices can lead to XSRF, as the above pages are vulnerable to cross-site scripting (XSS).

NVD Source

Technical Analysis

CVE-2021-25327 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 6.5.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Affected Vendors & Products

skyworthdigital2 product(s)
rn510 firmwarern510
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://packetstormsecurity.com/files/162454/Shenzhen-Skyworth-RN510-Cross-Site-Request-Forgery-Cross-Site-Scripting.html
ADVISORYhttp://seclists.org/fulldisclosure/2021/May/6
ADVISORYhttps://s3curityb3ast.github.io/KSA-Dev-012.md
ADVISORYhttp://packetstormsecurity.com/files/162454/Shenzhen-Skyworth-RN510-Cross-Site-Request-Forgery-Cross-Site-Scripting.html
ADVISORYhttp://seclists.org/fulldisclosure/2021/May/6
ADVISORYhttps://s3curityb3ast.github.io/KSA-Dev-012.md

All References (6)

→
http://packetstormsecurity.com/files/162454/Shenzhen-Skyworth-RN510-Cross-Site-Request-Forgery-Cross-Site-Scripting.htmlExploit · Third Party Advisory · VDB Entry
→
http://seclists.org/fulldisclosure/2021/May/6Exploit · Mailing List · Third Party Advisory
→
https://s3curityb3ast.github.io/KSA-Dev-012.mdThird Party Advisory
→
http://packetstormsecurity.com/files/162454/Shenzhen-Skyworth-RN510-Cross-Site-Request-Forgery-Cross-Site-Scripting.htmlExploit · Third Party Advisory · VDB Entry
→
http://seclists.org/fulldisclosure/2021/May/6Exploit · Mailing List · Third Party Advisory
→
https://s3curityb3ast.github.io/KSA-Dev-012.mdThird Party Advisory

Quick Facts

CVE IDCVE-2021-25327
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-79
CISA KEVNo
Affected1 vendor(s)
PublishedApr 9, 2021

Related CVEs (CWE-79)

CVE-2026-54433
10.0
CVE-2024-6886
10.0
CVE-2023-0776
10.0
CVE-2011-3046
10.0
CVE-2025-49410
10.0
CVE-2021-32671
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-25327 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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