How severe is CVE-2021-22312?

CVE-2021-22312 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-22312 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22312?

CVE-2021-22312 primarily affects Huawei Ips Module Firmware. In total, 42 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-22312?

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

When was CVE-2021-22312 published?

CVE-2021-22312 was published on 2021-04-08 and last updated on 2026-06-17.

CVE-2021-22312

CVE-2021-22312 is a medium-severity vulnerability in Huawei Ips Module Firmware with a CVSS 3.x base score of 6.5. 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-401.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-401
Affected product: Huawei Ips Module Firmware
Published: 2021-04-08
Last modified: 2026-06-17

Description

There is a memory leak vulnerability in some Huawei products. An authenticated remote attacker may exploit this vulnerability by sending specific message to the affected product. Due to not release the allocated memory properly, successful exploit may cause some service abnormal. Affected product include some versions of IPS Module, NGFW Module, Secospace USG6300, Secospace USG6500, Secospace USG6600 and USG9500.

Frequently asked questions

What is CVE-2021-22312?: There is a memory leak vulnerability in some Huawei products. An authenticated remote attacker may exploit this vulnerability by sending specific message to the affected product. Due to not release the allocated memory properly, successful exploit may cause some service abnormal. Affected product include some versions of IPS Module, NGFW Module, Secospace USG6300, Secospace USG6500, Secospace USG6600 and USG9500.
How severe is CVE-2021-22312?: CVE-2021-22312 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-22312 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22312?: CVE-2021-22312 primarily affects Huawei Ips Module Firmware. In total, 42 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-22312?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-22312 published?: CVE-2021-22312 was published on 2021-04-08 and last updated on 2026-06-17.

References

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210210-01-memoryleak-en

Affected products (42)

cpe:2.3:o:huawei:ips_module_firmware:v500r005c00spc100:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ips_module_firmware:v500r005c00spc200:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ngfw_module_firmware:v500r005c00spc100:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ngfw_module_firmware:v500r005c00spc200:*:*:*:*:*:*:*
cpe:2.3:o:huawei:secospace_usg6300_firmware:v500r001c30spc200:*:*:*:*:*:*:*
cpe:2.3:o:huawei:secospace_usg6300_firmware:v500r001c30spc600:*:*:*:*:*:*:*
cpe:2.3:o:huawei:secospace_usg6300_firmware:v500r001c60spc500:*:*:*:*:*:*:*
cpe:2.3:o:huawei:secospace_usg6300_firmware:v500r005c00spc100:*:*:*:*:*:*:*
cpe:2.3:o:huawei:secospace_usg6300_firmware:v500r005c00spc200:*:*:*:*:*:*:*
cpe:2.3:o:huawei:secospace_usg6500_firmware:v500r001c30spc200:*:*:*:*:*:*:*
cpe:2.3:o:huawei:secospace_usg6500_firmware:v500r001c30spc600:*:*:*:*:*:*:*
cpe:2.3:o:huawei:secospace_usg6500_firmware:v500r001c60spc500:*:*:*:*:*:*:*
cpe:2.3:o:huawei:secospace_usg6500_firmware:v500r005c00spc100:*:*:*:*:*:*:*
cpe:2.3:o:huawei:secospace_usg6500_firmware:v500r005c00spc200:*:*:*:*:*:*:*
cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r001c30spc200:*:*:*:*:*:*:*
cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r001c30spc600:*:*:*:*:*:*:*
cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r001c60spc500:*:*:*:*:*:*:*
cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r005c00spc100:*:*:*:*:*:*:*
cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r005c00spc200:*:*:*:*:*:*:*
cpe:2.3:o:huawei:usg9500_firmware:v500r001c30spc200:*:*:*:*:*:*:*
cpe:2.3:o:huawei:usg9500_firmware:v500r001c30spc600:*:*:*:*:*:*:*
cpe:2.3:o:huawei:usg9500_firmware:v500r001c60spc500:*:*:*:*:*:*:*
cpe:2.3:o:huawei:usg9500_firmware:v500r005c00spc100:*:*:*:*:*:*:*
cpe:2.3:o:huawei:usg9500_firmware:v500r005c00spc200:*:*:*:*:*:*:*
cpe:2.3:o:huawei:nip6300_firmware:v500r001c30spc200:*:*:*:*:*:*:*
cpe:2.3:o:huawei:nip6300_firmware:v500r001c30spc600:*:*:*:*:*:*:*
cpe:2.3:o:huawei:nip6300_firmware:v500r001c60spc500:*:*:*:*:*:*:*
cpe:2.3:o:huawei:nip6300_firmware:v500r005c00spc100:*:*:*:*:*:*:*
cpe:2.3:o:huawei:nip6300_firmware:v500r005c00spc200:*:*:*:*:*:*:*
cpe:2.3:o:huawei:nip6600_firmware:v500r001c30spc200:*:*:*:*:*:*:*
cpe:2.3:o:huawei:nip6600_firmware:v500r001c30spc600:*:*:*:*:*:*:*
cpe:2.3:o:huawei:nip6600_firmware:v500r001c60spc500:*:*:*:*:*:*:*
cpe:2.3:o:huawei:nip6600_firmware:v500r005c00spc100:*:*:*:*:*:*:*
cpe:2.3:o:huawei:nip6600_firmware:v500r005c00spc200:*:*:*:*:*:*:*
cpe:2.3:o:huawei:nip6800_firmware:v500r001c30spc200:*:*:*:*:*:*:*
cpe:2.3:o:huawei:nip6800_firmware:v500r001c30spc600:*:*:*:*:*:*:*
cpe:2.3:o:huawei:nip6800_firmware:v500r001c60spc500:*:*:*:*:*:*:*
cpe:2.3:o:huawei:nip6800_firmware:v500r005c00spc100:*:*:*:*:*:*:*
cpe:2.3:o:huawei:nip6800_firmware:v500r005c00spc200:*:*:*:*:*:*:*
cpe:2.3:o:huawei:usg6000e_firmware:v600r006c00:*:*:*:*:*:*:*

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