How severe is CVE-2016-5435?

CVE-2016-5435 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2016-5435 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-5435?

CVE-2016-5435 affects Huawei Huawei Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-5435?

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

When was CVE-2016-5435 published?

CVE-2016-5435 was published on 2016-06-24 and last updated on 2026-06-17.

CVE-2016-5435

CVE-2016-5435 is a medium-severity vulnerability in Huawei Huawei Firmware with a CVSS 3.x base score of 5.9. 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-399.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 7.1
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Huawei Huawei Firmware
Published: 2016-06-24
Last modified: 2026-06-17

Description

Memory leak in Huawei IPS Module, NGFW Module, NIP6300, NIP6600, and Secospace USG6300, USG6500, USG6600, USG9500, and AntiDDoS8000 V500R001C00 before V500R001C20SPC100, when in hot standby networking where two devices are not directly connected, allows remote attackers to cause a denial of service (memory consumption and reboot) via a crafted packet.

Frequently asked questions

What is CVE-2016-5435?: Memory leak in Huawei IPS Module, NGFW Module, NIP6300, NIP6600, and Secospace USG6300, USG6500, USG6600, USG9500, and AntiDDoS8000 V500R001C00 before V500R001C20SPC100, when in hot standby networking where two devices are not directly connected, allows remote attackers to cause a denial of service (memory consumption and reboot) via a crafted packet.
How severe is CVE-2016-5435?: CVE-2016-5435 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2016-5435 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-5435?: CVE-2016-5435 affects Huawei Huawei Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-5435?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-5435 published?: CVE-2016-5435 was published on 2016-06-24 and last updated on 2026-06-17.

References

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160615-01-standby-en

Affected products (1)

cpe:2.3:h:huawei:huawei_firmware:v5500r001c00:*:*:*:*:*:*:*

Other CWE-399 (Resource Management Errors) vulnerabilities

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