CVE-2016-4577

Name: CVE-2016-4577
Creator: NVD / NIST
Published: 2016-05-23T19:59:11.197+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.00%

Last modified Jun 17, 2026

CVE-2016-4577 is a vulnerability of currently unknown severity. Buffer overflow in the Smart DNS functionality in the Huawei NGFW Module and Secospace USG6300, USG6500, USG6600, and USG9500 firewalls with software before V500R001C20SPC100 allows remote attackers to cause a denial of service or execute arbitrary code via a crafted packet, related to "illegitimate parameters.". EPSS estimates a 1.00% chance of exploitation in the next 30 days.

Description

Buffer overflow in the Smart DNS functionality in the Huawei NGFW Module and Secospace USG6300, USG6500, USG6600, and USG9500 firewalls with software before V500R001C20SPC100 allows remote attackers to cause a denial of service or execute arbitrary code via a crafted packet, related to "illegitimate parameters."

Metrics

EPSS Probability

1.00%

58.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Huawei	Usg9500 Firmware	v500r001c00
Huawei	Ngfw Module Firmware	v500r001c00
Huawei	Secospace Usg6300 Firmware	v500r001c00
Huawei	Secospace Usg6600 Firmware	v500r001c00
Huawei	Secospace Usg6500 Firmware	v500r001c00

References

Timeline

Published: May 23, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-4577?

How severe is CVE-2016-4577?

Severity scoring for CVE-2016-4577 is pending analysis. The EPSS model estimates a 1.00% probability of exploitation in the next 30 days.

How do I fix CVE-2016-4577?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-4577?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST