How severe is CVE-2021-22363?

CVE-2021-22363 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-2021-22363 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22363?

CVE-2021-22363 affects Huawei Ecns280 Td Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-22363?

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-2021-22363 published?

CVE-2021-22363 was published on 2021-06-22 and last updated on 2026-06-17.

CVE-2021-22363

CVE-2021-22363 is a high-severity vulnerability in Huawei Ecns280 Td 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. The underlying weakness is classified as CWE-770.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-770
Affected product: Huawei Ecns280 Td Firmware
Published: 2021-06-22
Last modified: 2026-06-17

Description

There is a resource management error vulnerability in eCNS280_TD V100R005C10SPC650. An attacker needs to perform specific operations to exploit the vulnerability on the affected device. Due to improper resource management of the function, the vulnerability can be exploited to cause service abnormal on affected devices.

Frequently asked questions

What is CVE-2021-22363?: There is a resource management error vulnerability in eCNS280_TD V100R005C10SPC650. An attacker needs to perform specific operations to exploit the vulnerability on the affected device. Due to improper resource management of the function, the vulnerability can be exploited to cause service abnormal on affected devices.
How severe is CVE-2021-22363?: CVE-2021-22363 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-2021-22363 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22363?: CVE-2021-22363 affects Huawei Ecns280 Td Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-22363?: 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-2021-22363 published?: CVE-2021-22363 was published on 2021-06-22 and last updated on 2026-06-17.

References

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210609-01-resource-en

Affected products (1)

cpe:2.3:o:huawei:ecns280_td_firmware:v100r005c10spc650:*:*:*:*:*:*:*

More vulnerabilities in Huawei Ecns280 Td Firmware

CVE-2021-22396 — High (CVSS 7.8): There is a privilege escalation vulnerability in some Huawei products. Due to improper privilege management, a local…
CVE-2021-40007 — Medium (CVSS 6.5): There is an information leak vulnerability in eCNS280_TD V100R005C10SPC650. The vulnerability is caused by improper log…
CVE-2021-39995 — Medium (CVSS 6.5): Some Huawei products use the OpenHpi software for hardware management. A function that parses data returned by OpenHpi…
CVE-2021-37036 — Medium (CVSS 5.5): There is an information leakage vulnerability in FusionCompute 6.5.1, eCNS280_TD V100R005C00 and V100R005C10. Due to…
CVE-2021-22378 — Medium (CVSS 5.3): There is a race condition vulnerability in eCNS280_TD V100R005C00 and V100R005C10. There is a timing window exists in…
CVE-2021-22383 — Medium (CVSS 4.9): There is an out-of-bounds read vulnerability in eCNS280_TD V100R005C10 and eSE620X vESS V100R001C10SPC200,…

All CVEs affecting Huawei Ecns280 Td Firmware →

Other CWE-770 (Allocation of Resources Without Limits or Throttling) vulnerabilities

CVE-2026-31283 — Critical (CVSS 9.8): In Totara LMS v19.1.5 and before, the forgot password API does not implement rate limiting for the target email…
CVE-2020-37067 — Critical (CVSS 9.8): Filetto 1.0 FTP server contains a denial of service vulnerability in the FEAT command processing that allows attackers…
CVE-2021-47875 — Critical (CVSS 9.8): GeoGebra CAS Calculator 6.0.631.0 contains a denial of service vulnerability that allows attackers to crash the…
CVE-2025-11832 — Critical (CVSS 9.8): Allocation of Resources Without Limits or Throttling vulnerability in Azure Access Technology BLU-IC2, Azure Access…
CVE-2024-44241 — Critical (CVSS 9.8): The issue was addressed with improved bounds checks. This issue is fixed in iOS 18.1 and iPadOS 18.1, macOS Sequoia…
CVE-2022-3439 — Critical (CVSS 9.8): Allocation of Resources Without Limits or Throttling in GitHub repository ikus060/rdiffweb prior to 2.5.0.

Browse all CWE-770 (Allocation of Resources Without Limits or Throttling) vulnerabilities →