How severe is CVE-2021-40007?

CVE-2021-40007 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 high, integrity none, and availability none.

Is CVE-2021-40007 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-40007?

CVE-2021-40007 affects Huawei Ecns280 Td Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-40007?

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

When was CVE-2021-40007 published?

CVE-2021-40007 was published on 2021-12-13 and last updated on 2026-06-17.

CVE-2021-40007

CVE-2021-40007 is a medium-severity vulnerability in Huawei Ecns280 Td 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-116.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-116
Affected product: Huawei Ecns280 Td Firmware
Published: 2021-12-13
Last modified: 2026-06-17

Description

There is an information leak vulnerability in eCNS280_TD V100R005C10SPC650. The vulnerability is caused by improper log output management. An attacker with the ability to access the log file of device may lead to information disclosure.

Frequently asked questions

What is CVE-2021-40007?: There is an information leak vulnerability in eCNS280_TD V100R005C10SPC650. The vulnerability is caused by improper log output management. An attacker with the ability to access the log file of device may lead to information disclosure.
How severe is CVE-2021-40007?: CVE-2021-40007 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 high, integrity none, and availability none.
Is CVE-2021-40007 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-40007?: CVE-2021-40007 affects Huawei Ecns280 Td Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-40007?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-40007 published?: CVE-2021-40007 was published on 2021-12-13 and last updated on 2026-06-17.

References

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20211208-01-informationleak-en

Affected products (1)

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

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