No exploitation reported

CVE-2016-4576

No exploitation reported by the sources we read.

Published2016-05-23
WeaknessCWE-119

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Buffer overflow in the Application Specific Packet Filtering (ASPF) functionality in the Huawei IPS Module, NGFW Module, NIP6300, NIP6600, Secospace USG6300, USG6500, USG6600, USG9500, and AntiDDoS8000 devices 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."

Timeline

dates in UTC

2016-05-2319:59CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2016-4576?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2016-4576?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Huawei ips module firmwareversion to verify

Branch	Affected	Fixed in	Source
500.x	= v500r001c00	no fix published	NVD

Huawei ngfw module firmwareversion to verify

Branch	Affected	Fixed in	Source
500.x	= v500r001c00	no fix published	NVD

Huawei nip6300 firmwareversion to verify

Branch	Affected	Fixed in	Source
500.x	= v500r001c00	no fix published	NVD

6 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

www.huawei.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.09.8read 2026-10-23
NVDCVSS 2.07.5read 2026-10-23
NVDweakness (CWE)CWE-119read 2026-10-23
FIRST EPSSEPSS score2.4 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2016-05-23
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2016-4576?

Is CVE-2016-4576 actively exploited?

Active exploitation of CVE-2016-4576 has not been confirmed. Its EPSS score was 2.4% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2016-4576?

CVE-2016-4576 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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