CVE-2021-22377

There is a command injection vulnerability in S12700 V200R019C00SPC500, S2700 V200R019C00SPC500, S5700 V200R019C00SPC500, S6700 V200R019C00SPC500 and S7700 V200R019C00SPC500. A module does not verify specific input sufficiently. Attackers can exploit this vulnerability by sending malicious parameters to inject command. This can compromise normal service.

Published: 2021-06-22 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-22377 is rated Moderate Risk (55.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.90%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2021-22377

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-01-28 0.71% 0.90% +0.19%
2 2025-03-30 1.55% 0.71% -0.84%
3 2025-03-29 — 1.55% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-22377

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.2 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.2 5.9 [email protected]
6.5 2.0 MEDIUM
AV:N/AC:L/Au:S/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.0 6.4 [email protected]

Weakness enumeration for CVE-2021-22377

Affected software / configurations for CVE-2021-22377

Vendor Product Version Raw CPE
huawei s12700_firmware v200r019c00spc500 cpe:2.3:o:huawei:s12700_firmware:v200r019c00spc500:*:*:*:*:*:*:*
huawei s2700_firmware v200r019c00spc500 cpe:2.3:o:huawei:s2700_firmware:v200r019c00spc500:*:*:*:*:*:*:*
huawei s5700_firmware v200r019c00spc500 cpe:2.3:o:huawei:s5700_firmware:v200r019c00spc500:*:*:*:*:*:*:*
huawei s6700_firmware v200r019c00spc500 cpe:2.3:o:huawei:s6700_firmware:v200r019c00spc500:*:*:*:*:*:*:*
huawei s7700_firmware v200r019c00spc500 cpe:2.3:o:huawei:s7700_firmware:v200r019c00spc500:*:*:*:*:*:*:*

References for CVE-2021-22377

cvelogic Threat Intelligence