How severe is CVE-2016-8278?

CVE-2016-8278 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2016-8278 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-8278?

CVE-2016-8278 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-2016-8278?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2016-8278 published?

CVE-2016-8278 was published on 2016-10-03 and last updated on 2026-06-17.

CVE-2016-8278

CVE-2016-8278 is a high-severity vulnerability in Huawei Usg9520 with a CVSS 3.x base score of 7.5. 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: High (CVSS 3.x base score 7.5)
CVSS v2: 7.8
EPSS exploit prediction: 1% (64th 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 attackers to cause a denial of service (device restart) via an unspecified URL.

Frequently asked questions

What is CVE-2016-8278?: Huawei USG9520, USG9560, and USG9580 unified security gateways with software before V300R001C01SPCa00 allow remote attackers to cause a denial of service (device restart) via an unspecified URL.
How severe is CVE-2016-8278?: CVE-2016-8278 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2016-8278 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-8278?: CVE-2016-8278 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-2016-8278?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2016-8278 published?: CVE-2016-8278 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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