CVE-2018-7933
CVE-2018-7933 is a high-severity vulnerability in Huawei Hirouter-cd20 Firmware with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 1% (60th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-22
- Affected product: Huawei Hirouter-cd20 Firmware
- Published:
- Last modified:
Description
Huawei home gateway products HiRouter-CD20 and WS5200 with the versions before HiRouter-CD20-10 1.9.6 and the versions before WS5200-10 1.9.6 have a path traversal vulnerability. Due to the lack of validation while these home gateway products install APK plugins, an attacker tricks a user into installing a malicious APK plugin, and plugin can overwrite arbitrary file of devices. Successful exploit may result in arbitrary code execution or privilege escalation.
Frequently asked questions
- What is CVE-2018-7933?
- Huawei home gateway products HiRouter-CD20 and WS5200 with the versions before HiRouter-CD20-10 1.9.6 and the versions before WS5200-10 1.9.6 have a path traversal vulnerability. Due to the lack of validation while these home gateway products install APK plugins, an attacker tricks a user into installing a malicious APK plugin, and plugin can overwrite arbitrary file of devices. Successful exploit may result in arbitrary code execution or privilege escalation.
- How severe is CVE-2018-7933?
- CVE-2018-7933 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-7933 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-7933?
- CVE-2018-7933 primarily affects Huawei Hirouter-cd20 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2018-7933?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2018-7933 published?
- CVE-2018-7933 was published on 2018-05-10 and last updated on 2026-06-17.
References
Affected products (2)
- cpe:2.3:o:huawei:hirouter-cd20_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:huawei:ws5200_firmware:*:*:*:*:*:*:*:*
More vulnerabilities in Huawei Hirouter-cd20 Firmware
- CVE-2018-7937 — High (CVSS 7.8): In Huawei HiRouter-CD20-10 with the versions before 1.9.6 and WS5200-10 with the versions before 1.9.6, there is a…
All CVEs affecting Huawei Hirouter-cd20 Firmware →
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