What is CVE-2018-7977?

CVE-2018-7977 is a high-severity vulnerability in Huawei Fusionsphere OpenStack, classified under Information Disclosure. CVSS score: 7.5/10. Published 2018-11-27.

How severe is CVE-2018-7977?

High severity. CVSS v3 base score is 7.5 out of 10.

Information disclosure in Huawei Fusionsphere OpenStack

CVE-2018-7977

There is an information leakage vulnerability on several Huawei products. Due to insufficient communication protection for specific services, a remote, unauthorized attacker can exploit this vulnerability to connect to specific services to obtain additional information. Successful exploitation of this vulnerability can lead to information leakage.

Vulnerability class: Information Disclosure

Published 2018-11-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.010 (60.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 60.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Huawei Fusionsphere OpenStack — versions 100r006c00
Huawei Technologies Co., Ltd. Fusionsphere OpenStack — versions V100R006C00

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

www.huawei.com/en/psirt/security-advisories/huawei-sa-20181114-01-fusionsphere-… (Vendor Advisory)

Frequently asked questions

What is CVE-2018-7977?: CVE-2018-7977 is a high-severity vulnerability in Huawei Fusionsphere OpenStack, classified under Information Disclosure. CVSS score: 7.5/10. Published 2018-11-27.
How severe is CVE-2018-7977?: High severity. CVSS v3 base score is 7.5 out of 10.