How severe is CVE-2016-8277?

CVE-2016-8277 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2016-8277 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-8277?

CVE-2016-8277 primarily affects Huawei Usg9520. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-8277?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2016-8277 published?

CVE-2016-8277 was published on 2016-10-03 and last updated on 2026-06-17.

CVE-2016-8277

CVE-2016-8277 is a medium-severity vulnerability in Huawei Usg9520 with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 6.8
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Huawei Usg9520
Published: 2016-10-03
Last modified: 2026-06-17

Description

Huawei USG9520, USG9560, and USG9580 unified security gateways with software before V300R001C01SPCa00 allow remote authenticated users to cause a denial of service (device restart) via an unspecified command parameter.

Frequently asked questions

What is CVE-2016-8277?: Huawei USG9520, USG9560, and USG9580 unified security gateways with software before V300R001C01SPCa00 allow remote authenticated users to cause a denial of service (device restart) via an unspecified command parameter.
How severe is CVE-2016-8277?: CVE-2016-8277 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2016-8277 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-8277?: CVE-2016-8277 primarily affects Huawei Usg9520. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-8277?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-8277 published?: CVE-2016-8277 was published on 2016-10-03 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:huawei:usg9520:v300r001c01:*:*:*:*:*:*:*
cpe:2.3:a:huawei:usg9560:v300r001c01:*:*:*:*:*:*:*
cpe:2.3:a:huawei:usg9580:v300r001c01:*:*:*:*:*:*:*

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