CVE-2021-22377Network attack vector

Authenticated command injection via insufficient parameter validation

Published Jun 22, 2021 · Updated Aug 3, 2024

Command injection in Huawei S12700, S2700, S5700, S6700, and S7700 V200R019C00SPC500 allows remote authenticated users to disrupt service. The affected module accepts malicious parameters as command input without sufficient validation; Huawei has not identified the module or parameter. Exploitation requires a high-privilege login to the affected module and permits injected commands to compromise data and service availability.

CVSS severity5.7
Medium
EPSS probability0.92%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Command injection in Huawei S12700, S2700, S5700, S6700, and S7700 V200R019C00SPC500 allows remote authenticated users to disrupt service. The affected module accepts malicious parameters as command input without sufficient validation; Huawei has not identified the module or parameter. Exploitation requires a high-privilege login to the affected module and permits injected commands to compromise data and service availability.

The record

CVE
CVE-2021-22377
Published
Jun 22, 2021
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-20, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jun 22, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
5.3HuaweiCVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:H/E:F/RL:O/RC:C
6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P
5.7HuaweiCVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo