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CVE-2018-7937

25
FAUCET Score

CVE-2018-7937 is a plug-in signature bypass vulnerability affecting Huawei HiRouter-CD20 and WS5200-10 devices running firmware versions prior to 1.9.6. This flaw allows an attacker to create and trick users into installing a malicious plug-in due to insufficient verification. Rated 7.8 HIGH on CVSS, successful exploitation could grant an attacker root privileges and full control over the compromised device, requiring user interaction for the attack to succeed. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< hirouter-cd20-10_1.9.6CPE matchmatch criteria
cpe:2.3:o:huawei:hirouter-cd20_firmware:*:*:*:*:*:*:*:*
< ws5200-10_1.9.6CPE matchmatch criteria
cpe:2.3:o:huawei:ws5200-10_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.84%
Probability of exploitation in next 30 days
EPSS Percentile
54.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0084 is in the 51st percentile among its peer group of 11,621 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

huawei.com / en/psirt/security-advisories/huawei-sa-20180827-01-gateway-en
Vendor Advisory