How severe is CVE-2021-22340?

CVE-2021-22340 has a CVSS 3.x base score of 4.1, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-22340 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22340?

CVE-2021-22340 primarily affects Huawei Manageone. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-22340?

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

When was CVE-2021-22340 published?

CVE-2021-22340 was published on 2021-06-29 and last updated on 2026-06-17.

CVE-2021-22340

CVE-2021-22340 is a medium-severity vulnerability in Huawei Manageone with a CVSS 3.x base score of 4.1. 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-362.

Key facts

Severity: Medium (CVSS 3.x base score 4.1)
CVSS v2: 4.7
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-362
Affected product: Huawei Manageone
Published: 2021-06-29
Last modified: 2026-06-17

Description

There is a multiple threads race condition vulnerability in Huawei product. A race condition exists for concurrent I/O read by multiple threads. An attacker with the root permission can exploit this vulnerability by performing some operations. Successful exploitation of this vulnerability may cause the system to crash. Affected product versions include: ManageOne 6.5.1.SPC200, 8.0.0,8.0.0-LCND81, 8.0.0.SPC100, 8.0.1,8.0.RC2, 8.0.RC3, 8.0.RC3.SPC100;SMC2.0 V600R019C10SPC700,V600R019C10SPC702, V600R019C10SPC703,V600R019C10SPC800, V600R019C10SPC900, V600R019C10SPC910, V600R019C10SPC920, V600R019C10SPC921, V600R019C10SPC922, V600R019C10SPC930, V600R019C10SPC931

Frequently asked questions

What is CVE-2021-22340?: There is a multiple threads race condition vulnerability in Huawei product. A race condition exists for concurrent I/O read by multiple threads. An attacker with the root permission can exploit this vulnerability by performing some operations. Successful exploitation of this vulnerability may cause the system to crash. Affected product versions include: ManageOne 6.5.1.SPC200, 8.0.0,8.0.0-LCND81, 8.0.0.SPC100, 8.0.1,8.0.RC2, 8.0.RC3, 8.0.RC3.SPC100;SMC2.0 V600R019C10SPC700,V600R019C10SPC702, V600R019C10SPC703,V600R019C10SPC800, V600R019C10SPC900, V600R019C10SPC910, V600R019C10SPC920, V600R019C10SPC921, V600R019C10SPC922, V600R019C10SPC930, V600R019C10SPC931
How severe is CVE-2021-22340?: CVE-2021-22340 has a CVSS 3.x base score of 4.1, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-22340 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22340?: CVE-2021-22340 primarily affects Huawei Manageone. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-22340?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-22340 published?: CVE-2021-22340 was published on 2021-06-29 and last updated on 2026-06-17.

References

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210428-01-racecondition-en

Affected products (19)

cpe:2.3:a:huawei:manageone:6.5.1:spc200:*:*:*:*:*:*
cpe:2.3:a:huawei:manageone:8.0.0:-:*:*:*:*:*:*
cpe:2.3:a:huawei:manageone:8.0.0:lcnd81:*:*:*:*:*:*
cpe:2.3:a:huawei:manageone:8.0.0:rc2:*:*:*:*:*:*
cpe:2.3:a:huawei:manageone:8.0.0:rc3:*:*:*:*:*:*
cpe:2.3:a:huawei:manageone:8.0.0:rc3.spc100:*:*:*:*:*:*
cpe:2.3:a:huawei:manageone:8.0.0:spc100:*:*:*:*:*:*
cpe:2.3:a:huawei:manageone:8.0.1:*:*:*:*:*:*:*
cpe:2.3:a:huawei:smc2.0:v600r019c10spc700:*:*:*:*:*:*:*
cpe:2.3:a:huawei:smc2.0:v600r019c10spc702:*:*:*:*:*:*:*
cpe:2.3:a:huawei:smc2.0:v600r019c10spc703:*:*:*:*:*:*:*
cpe:2.3:a:huawei:smc2.0:v600r019c10spc800:*:*:*:*:*:*:*
cpe:2.3:a:huawei:smc2.0:v600r019c10spc900:*:*:*:*:*:*:*
cpe:2.3:a:huawei:smc2.0:v600r019c10spc910:*:*:*:*:*:*:*
cpe:2.3:a:huawei:smc2.0:v600r019c10spc920:*:*:*:*:*:*:*
cpe:2.3:a:huawei:smc2.0:v600r019c10spc921:*:*:*:*:*:*:*
cpe:2.3:a:huawei:smc2.0:v600r019c10spc922:*:*:*:*:*:*:*
cpe:2.3:a:huawei:smc2.0:v600r019c10spc930:*:*:*:*:*:*:*
cpe:2.3:a:huawei:smc2.0:v600r019c10spc931:*:*:*:*:*:*:*

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