How severe is CVE-2020-1847?

CVE-2020-1847 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-2020-1847 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-1847?

CVE-2020-1847 primarily affects Huawei Nip6300 Firmware. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-1847?

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-2020-1847 published?

CVE-2020-1847 was published on 2020-11-13 and last updated on 2026-06-17.

CVE-2020-1847

CVE-2020-1847 is a high-severity vulnerability in Huawei Nip6300 Firmware 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.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Huawei Nip6300 Firmware
Published: 2020-11-13
Last modified: 2026-06-17

Description

There is a denial of service vulnerability in some Huawei products. There is no protection against the attack scenario of specific protocol. A remote, unauthorized attackers can construct attack scenarios, which leads to denial of service.Affected product versions include:NIP6300 versions V500R001C30,V500R001C60;NIP6600 versions V500R001C30,V500R001C60;Secospace USG6300 versions V500R001C30,V500R001C60;Secospace USG6500 versions V500R001C30,V500R001C60;Secospace USG6600 versions V500R001C30,V500R001C60;USG9500 versions V500R001C30,V500R001C60.

Frequently asked questions

What is CVE-2020-1847?: There is a denial of service vulnerability in some Huawei products. There is no protection against the attack scenario of specific protocol. A remote, unauthorized attackers can construct attack scenarios, which leads to denial of service.Affected product versions include:NIP6300 versions V500R001C30,V500R001C60;NIP6600 versions V500R001C30,V500R001C60;Secospace USG6300 versions V500R001C30,V500R001C60;Secospace USG6500 versions V500R001C30,V500R001C60;Secospace USG6600 versions V500R001C30,V500R001C60;USG9500 versions V500R001C30,V500R001C60.
How severe is CVE-2020-1847?: CVE-2020-1847 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-2020-1847 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-1847?: CVE-2020-1847 primarily affects Huawei Nip6300 Firmware. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-1847?: 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-2020-1847 published?: CVE-2020-1847 was published on 2020-11-13 and last updated on 2026-06-17.

References

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20201111-02-dos-en

Affected products (12)

cpe:2.3:o:huawei:nip6300_firmware:v500r001c30:*:*:*:*:*:*:*
cpe:2.3:o:huawei:nip6300_firmware:v500r001c60:*:*:*:*:*:*:*
cpe:2.3:o:huawei:nip6600_firmware:v500r001c30:*:*:*:*:*:*:*
cpe:2.3:o:huawei:nip6600_firmware:v500r001c60:*:*:*:*:*:*:*
cpe:2.3:o:huawei:secospace_usg6300_firmware:v500r001c30:*:*:*:*:*:*:*
cpe:2.3:o:huawei:secospace_usg6300_firmware:v500r001c60:*:*:*:*:*:*:*
cpe:2.3:o:huawei:secospace_usg6500_firmware:v500r001c30:*:*:*:*:*:*:*
cpe:2.3:o:huawei:secospace_usg6500_firmware:v500r001c60:*:*:*:*:*:*:*
cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r001c30:*:*:*:*:*:*:*
cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r001c60:*:*:*:*:*:*:*
cpe:2.3:o:huawei:usg9500_firmware:v500r001c30:*:*:*:*:*:*:*
cpe:2.3:o:huawei:usg9500_firmware:v500r001c60:*:*:*:*:*:*:*

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