No exploitation reportedFix available

CVE-2018-7933

Q: Is CVE-2018-7933 actively exploited?

Active exploitation of CVE-2018-7933 has not been confirmed. Its EPSS score was 1.0% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2018-7933?

CVE-2018-7933 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2018-05-10
Fixed inhirouter-cd20-10_1.9.6
WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2018-05-1014:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-7933?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-7933?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Huawei hirouter-cd20 firmwareversion to verify

Branch	Affected	Fixed in	Source
—	< hirouter-cd20-10_1.9.6	hirouter-cd20-10_1.9.6	NVD

Huawei ws5200 firmwareversion to verify

Branch	Affected	Fixed in	Source
—	< ws5200-10_1.9.6	ws5200-10_1.9.6	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Huawei hirouter-cd20 firmware to hirouter-cd20-10_1.9.6

Advisories and patches

www.huawei.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.07.8read 2026-10-23
NVDCVSS 2.06.8read 2026-10-23
NVDweakness (CWE)CWE-22read 2026-10-23
FIRST EPSSEPSS score1.0 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2018-05-10
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2018-7933?

Is CVE-2018-7933 actively exploited?

Active exploitation of CVE-2018-7933 has not been confirmed. Its EPSS score was 1.0% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-7933?

CVE-2018-7933 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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