CVE-2018-7921

B315s 22 Firmware vulnerability

CVSS

6.5

EPSS

13.2%

EPSS pct

96th

Exploited

No known

Huawei B315s-22 products with software of 21.318.01.00.26 have an information leak vulnerability. Unauthenticated adjacent attackers may exploit this vulnerability to obtain device information.

Affected vendor

Huawei

Affected product

B315s 22 Firmware

CVSS vector

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

Weakness type (CWE)

CWE-200 — Exposure of Sensitive Information

Published

2018-09-12

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable from an adjacent network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 13.2% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2018-7921

Confirm whether Huawei B315s 22 Firmware is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2018-7921.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-7921

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-7921 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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