CVE-2018-19524
CVE-2018-19524 is a critical-severity vulnerability in Skyworthdigital Dt740 Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 51% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-20.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 10.0
- EPSS exploit prediction: 51% (99th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-20
- Affected product: Skyworthdigital Dt740 Firmware
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2018-19524?
- 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.
- How severe is CVE-2018-19524?
- CVE-2018-19524 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-19524 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 51% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-19524?
- CVE-2018-19524 primarily affects Skyworthdigital Dt740 Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2018-19524?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2018-19524 published?
- CVE-2018-19524 was published on 2019-03-21 and last updated on 2026-06-17.
References
- http://packetstormsecurity.com/files/151608/Skyworth-GPON-HomeGateways-Optical-Network-Stack-Overflow.html
- http://seclists.org/fulldisclosure/2019/Feb/30
- https://s3curityb3ast.github.io/KSA-Dev-001.md
- https://seclists.org/bugtraq/2019/Feb/21
- https://www.breakthesec.com/2019/02/cve-2018-19524-stack-overflow-in.html
- https://www.exploit-db.com/exploits/46358/
Affected products (3)
- cpe:2.3:o:skyworthdigital:dt740_firmware:sdotbgn1:*:*:*:*:*:*:*
- cpe:2.3:o:skyworthdigital:dt721-cb_firmware:sdotbgn1:*:*:*:*:*:*:*
- cpe:2.3:o:skyworthdigital:dt741-cb_firmware:sdotbgn1:*:*:*:*:*:*:*
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