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CVE-2021-22320

HIGHCVSS 7.5/10EPSS 0.73%

Last modified

CVE-2021-22320 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. There is a denial of service vulnerability in Huawei products. A module cannot deal with specific messages correctly. EPSS estimates a 0.73% chance of exploitation in the next 30 days.

Description

There is a denial of service vulnerability in Huawei products. A module cannot deal with specific messages correctly. Attackers can exploit this vulnerability by sending malicious messages to an affected module. This can lead to denial of service. Affected product include some versions of IPS Module, NGFW Module, NIP6600, NIP6800, Secospace USG6300, Secospace USG6500 and Secospace USG6600.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
0.73%

49.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
HuaweiIps Module Firmwarev500r005c00spc100
HuaweiIps Module Firmwarev500r005c00spc200
HuaweiIps Module Firmwarev500r005c20spc300
HuaweiNgfw Module Firmwarev500r005c00spc100
HuaweiNgfw Module Firmwarev500r005c00spc200
HuaweiNgfw Module Firmwarev500r005c20spc300
HuaweiNip6600 Firmwarev500r001c30spc200
HuaweiNip6600 Firmwarev500r001c30spc600
HuaweiNip6600 Firmwarev500r001c60spc500
HuaweiNip6600 Firmwarev500r005c00spc100
HuaweiNip6600 Firmwarev500r005c00spc200
HuaweiNip6600 Firmwarev500r005c20spc300
HuaweiNip6600 Firmwarev500r005c20spc500
HuaweiNip6800 Firmwarev500r001c60spc500
HuaweiNip6800 Firmwarev500r005c00spc100
HuaweiNip6800 Firmwarev500r005c00spc200
HuaweiNip6800 Firmwarev500r005c20spc300
HuaweiNip6800 Firmwarev500r005c20spc500
HuaweiSecospace Usg6300 Firmwarev500r001c30spc200
HuaweiSecospace Usg6300 Firmwarev500r001c30spc600
HuaweiSecospace Usg6300 Firmwarev500r001c60spc500
HuaweiSecospace Usg6300 Firmwarev500r005c00spc100
HuaweiSecospace Usg6300 Firmwarev500r005c00spc200
HuaweiSecospace Usg6300 Firmwarev500r005c20spc300
HuaweiSecospace Usg6300 Firmwarev500r005c20spc500
HuaweiSecospace Usg6500 Firmwarev500r001c30spc200
HuaweiSecospace Usg6500 Firmwarev500r001c30spc600
HuaweiSecospace Usg6500 Firmwarev500r001c60spc500
HuaweiSecospace Usg6500 Firmwarev500r005c00spc100
HuaweiSecospace Usg6500 Firmwarev500r005c00spc200
HuaweiSecospace Usg6500 Firmwarev500r005c20spc300
HuaweiSecospace Usg6500 Firmwarev500r005c20spc500
HuaweiSecospace Usg6600 Firmwarev500r001c30spc200
HuaweiSecospace Usg6600 Firmwarev500r001c30spc600
HuaweiSecospace Usg6600 Firmwarev500r001c60spc500
HuaweiSecospace Usg6600 Firmwarev500r005c00spc100
HuaweiSecospace Usg6600 Firmwarev500r005c00spc200
HuaweiSecospace Usg6600 Firmwarev500r005c20spc300
HuaweiSecospace Usg6600 Firmwarev500r005c20spc500

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-22320?
There is a denial of service vulnerability in Huawei products. A module cannot deal with specific messages correctly. Attackers can exploit this vulnerability by sending malicious messages to an affected module. This can lead to denial of service. Affected product include some versions of IPS Module, NGFW Module, NIP6600, NIP6800, Secospace USG6300, Secospace USG6500 and Secospace USG6600.
How severe is CVE-2021-22320?
CVE-2021-22320 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.73% probability of exploitation in the next 30 days.
How do I fix CVE-2021-22320?
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-2021-22320?

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

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Source: NVD / NIST