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CVE-2018-7921

39
FAUCET Score

CVE-2018-7921 describes an information leak vulnerability in Huawei B315s-22 products running software version 21.318.01.00.26. This medium-severity vulnerability (CVSS 6.5) allows unauthenticated adjacent attackers to obtain sensitive device information with low attack complexity, posing a high confidentiality risk. While not listed on the KEV catalog and showing no active exploitation or significant community discussion, public exploit code exists, indicating its potential for abuse.

Impacted Technologies

VendorProductVersion(s)CPE
21.318.01.00.26CPE matchmatch criteria
cpe:2.3:o:huawei:b315s-22_firmware:21.318.01.00.26:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
13.22%
Probability of exploitation in next 30 days
EPSS Percentile
96.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-45971 · Dec 11, 2018
This CVE's current EPSS score of 0.1322 is in the 99th percentile among its peer group of 1,801 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

exploit-db.com / exploits/45971
huawei.com / en/psirt/security-notices/huawei-sn-20180903-01-b315s-en
Vendor Advisory