CVE-2021-22338

Name: CVE-2021-22338
Creator: NVD / NIST
Published: 2021-06-29T19:15:09.147+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.63%

Last modified Jun 17, 2026

CVE-2021-22338 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. There is an XXE injection vulnerability in eCNS280 V100R005C00 and V100R005C10. A module does not perform the strict operation to the input XML message. EPSS estimates a 0.63% chance of exploitation in the next 30 days.

Description

There is an XXE injection vulnerability in eCNS280 V100R005C00 and V100R005C10. A module does not perform the strict operation to the input XML message. Attacker can send specific message to exploit this vulnerability, leading to the module denial of service.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS Probability

0.63%

45.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-611

Affected Software

Vendor	Product	Versions
Huawei	Ecns280 Firmware	v100r005c00
Huawei	Ecns280 Firmware	v100r005c10

References

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210421-01-cgp-enVendor Advisory
https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210421-01-cgp-enVendor Advisory

Timeline

Published: Jun 29, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-22338?

How severe is CVE-2021-22338?

CVE-2021-22338 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.63% probability of exploitation in the next 30 days.

How do I fix CVE-2021-22338?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-22338?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST