How severe is CVE-2021-22300?

CVE-2021-22300 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 high, integrity none, and availability none.

Is CVE-2021-22300 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22300?

CVE-2021-22300 primarily affects Huawei Ecns280 Td Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-22300?

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

When was CVE-2021-22300 published?

CVE-2021-22300 was published on 2021-02-06 and last updated on 2026-06-17.

CVE-2021-22300

CVE-2021-22300 is a medium-severity vulnerability in Huawei Ecns280 Td Firmware 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-312.

Key facts

Severity: Medium (CVSS 3.x base score 4.1)
CVSS v2: 1.9
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-312
Affected product: Huawei Ecns280 Td Firmware
Published: 2021-02-06
Last modified: 2026-06-17

Description

There is an information leak vulnerability in eCNS280_TD versions V100R005C00 and V100R005C10. A command does not have timeout exit mechanism. Temporary file contains sensitive information. This allows attackers to obtain information by inter-process access that requires other methods.

Frequently asked questions

What is CVE-2021-22300?: There is an information leak vulnerability in eCNS280_TD versions V100R005C00 and V100R005C10. A command does not have timeout exit mechanism. Temporary file contains sensitive information. This allows attackers to obtain information by inter-process access that requires other methods.
How severe is CVE-2021-22300?: CVE-2021-22300 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 high, integrity none, and availability none.
Is CVE-2021-22300 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22300?: CVE-2021-22300 primarily affects Huawei Ecns280 Td Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-22300?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-22300 published?: CVE-2021-22300 was published on 2021-02-06 and last updated on 2026-06-17.

References

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210127-01-cgp-en

Affected products (2)

cpe:2.3:o:huawei:ecns280_td_firmware:v100r005c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ecns280_td_firmware:v100r005c10:*:*:*:*:*:*:*

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CVE-2021-22363 — High (CVSS 7.5): There is a resource management error vulnerability in eCNS280_TD V100R005C10SPC650. An attacker needs to perform…
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