HOMEVULNERABILITIESCVE-2018-19524
CRITICALPOC

CVE-2018-19524

CWE-20Published: March 21, 2019· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

An issue was discovered on Shenzhen Skyworth DT741 Converged Intelligent Terminal (G/EPON+IPTV) SDOTBGN1, DT721-cb SDOTBGN1, and DT741-cb SDOTBGN1 devices. A long password to the Web_passwd function allows remote attackers to cause a denial of service (segmentation fault) or achieve unauthenticated remote code execution because of control of registers S0 through S4 and T4 through T7.

NVD Source

Technical Analysis

CVE-2018-19524 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

A proof-of-concept (PoC) exploit exists for CVE-2018-19524. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

skyworthdigital6 product(s)
dt740 firmwaredt740dt721-cb firmwaredt721-cbdt741-cb firmwaredt741-cb
Source: NVD CPE · 6 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists
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/151608/Skyworth-GPON-HomeGateways-Optical-Network-Stack-Overflow.html
ADVISORYhttp://seclists.org/fulldisclosure/2019/Feb/30
ADVISORYhttps://seclists.org/bugtraq/2019/Feb/21
ADVISORYhttps://www.exploit-db.com/exploits/46358/
ADVISORYhttp://packetstormsecurity.com/files/151608/Skyworth-GPON-HomeGateways-Optical-Network-Stack-Overflow.html
ADVISORYhttp://seclists.org/fulldisclosure/2019/Feb/30
ADVISORYhttps://seclists.org/bugtraq/2019/Feb/21
ADVISORYhttps://www.exploit-db.com/exploits/46358/

All References (12)

→
http://packetstormsecurity.com/files/151608/Skyworth-GPON-HomeGateways-Optical-Network-Stack-Overflow.htmlExploit · Third Party Advisory · VDB Entry
→
http://seclists.org/fulldisclosure/2019/Feb/30Exploit · Mailing List · Third Party Advisory
→
https://s3curityb3ast.github.io/KSA-Dev-001.md
→
https://seclists.org/bugtraq/2019/Feb/21Exploit · Mailing List · Third Party Advisory
→
https://www.breakthesec.com/2019/02/cve-2018-19524-stack-overflow-in.html
→
https://www.exploit-db.com/exploits/46358/Exploit · Third Party Advisory · VDB Entry
→
http://packetstormsecurity.com/files/151608/Skyworth-GPON-HomeGateways-Optical-Network-Stack-Overflow.htmlExploit · Third Party Advisory · VDB Entry
→
http://seclists.org/fulldisclosure/2019/Feb/30Exploit · Mailing List · Third Party Advisory
→
https://s3curityb3ast.github.io/KSA-Dev-001.md
→
https://seclists.org/bugtraq/2019/Feb/21Exploit · Mailing List · Third Party Advisory
→
https://www.breakthesec.com/2019/02/cve-2018-19524-stack-overflow-in.html
→
https://www.exploit-db.com/exploits/46358/Exploit · Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2018-19524
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-20
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedMar 21, 2019

Related CVEs (CWE-20)

CVE-2011-0922
10.0
CVE-2002-1359
10.0
CVE-2017-5226
10.0
CVE-2007-6494
10.0
CVE-2008-4910
10.0
CVE-2003-1425
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-19524 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.
← All Vulnerabilities·Search for CVE-2018-19524·NVD