What is the CVSS score of CVE-2021-22329?

CVE-2021-22329 has a CVSS 3.1 base score of 4.9 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N. EPSS exploitation probability: 0.5%.

S7700 Firmware CVE-2021-22329

MEDIUM

2021-06-29 psirt@huawei.com

Information Disclosure Huawei S7700 Firmware S12700 Firmware S2700 Firmware S6700 Firmware S5700 Firmware S9700 Firmware S1700 Firmware

4.9

CVSS 3.1 · NVD

View

Vulnerability Assessment

Impact	CVSS score of 4.9 (MEDIUM). Attack characteristics: network attack vector, low complexity, high privileges required, no user interaction not required.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.5% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAI

There has a license management vulnerability in some Huawei products. Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

There has a license management vulnerability in some Huawei products. An attacker with high privilege needs to perform specific operations to exploit the vulnerability on the affected device. Due to improper license management of the device, as a result, the license file can be applied and affect integrity of the device. Affected product versions include:S12700 V200R007C01,V200R007C01B102,V200R008C00,V200R010C00SPC300,V200R011C00,V200R011C00SPC100,V200R011C10;S1700 V200R010C00SPC300,V200R011C00,V200R011C00SPC100,V200R011C10;S2700 V200R008C00,V200R010C00SPC300,V200R011C00,V200R011C00SPC100,V200R011C10;S5700 V200R008C00,V200R010C00SPC300,V200R011C00,V200R011C00SPC100,V200R011C10,V200R011C10SPC100;S6700 V200R008C00,V200R010C00SPC300,V200R011C00,V200R011C00SPC100,V200R011C10,V200R011C10SPC100;S7700 V200R008C00,V200R010C00SPC300,V200R011C00,V200R011C00SPC100,V200R011C10;S9700 V200R007C01,V200R007C01B102,V200R008C00,V200R010C00SPC300,V200R011C00,V200R011C00SPC100,V200R011C10. Affected products include: Huawei S12700 Firmware, Huawei S1700 Firmware, Huawei S2700 Firmware, Huawei S5700 Firmware, Huawei S6700 Firmware.

Know when S7700 Firmware gets its next vulnerability

Watch products and get an email when something new is published
Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 4.9 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

DescriptionNVD

Threat Intelligence Overview

EPSS Score

0.5%

Top 62% exploitable

Data Quality

2 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC No

EPSS 0.5%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +24

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)NVD

cpe:2.3:o:huawei:s12700_firmware:v200r007c01:*:*:*:*:*:*:*

cpe:2.3:o:huawei:s12700_firmware:v200r007c01b102:*:*:*:*:*:*:*

cpe:2.3:o:huawei:s12700_firmware:v200r008c00:*:*:*:*:*:*:*

cpe:2.3:o:huawei:s12700_firmware:v200r010c00spc300:*:*:*:*:*:*:*

cpe:2.3:o:huawei:s12700_firmware:v200r011c00:*:*:*:*:*:*:*

cpe:2.3:o:huawei:s12700_firmware:v200r011c00spc100:*:*:*:*:*:*:*

cpe:2.3:o:huawei:s12700_firmware:v200r011c10:*:*:*:*:*:*:*

cpe:2.3:o:huawei:s1700_firmware:v200r010c00spc300:*:*:*:*:*:*:*

cpe:2.3:o:huawei:s1700_firmware:v200r011c00:*:*:*:*:*:*:*

cpe:2.3:o:huawei:s1700_firmware:v200r011c00spc100:*:*:*:*:*:*:*

cpe:2.3:o:huawei:s1700_firmware:v200r011c10:*:*:*:*:*:*:*

cpe:2.3:o:huawei:s2700_firmware:v200r008c00:*:*:*:*:*:*:*

cpe:2.3:o:huawei:s2700_firmware:v200r010c00spc300:*:*:*:*:*:*:*

cpe:2.3:o:huawei:s2700_firmware:v200r011c00:*:*:*:*:*:*:*

cpe:2.3:o:huawei:s2700_firmware:v200r011c00spc100:*:*:*:*:*:*:*

cpe:2.3:o:huawei:s2700_firmware:v200r011c10:*:*:*:*:*:*:*

cpe:2.3:o:huawei:s5700_firmware:v200r008c00:*:*:*:*:*:*:*

cpe:2.3:o:huawei:s5700_firmware:v200r010c00spc300:*:*:*:*:*:*:*

cpe:2.3:o:huawei:s5700_firmware:v200r011c00:*:*:*:*:*:*:*

cpe:2.3:o:huawei:s5700_firmware:v200r011c00spc100:*:*:*:*:*:*:*

+ 20 more

More in S7700 Firmware

View all

CVE-2015-2808 LOW Monitor

3.7 Apr 01

The RC4 algorithm, as used in the TLS protocol and SSL protocol, does not properly combine state data with key data duri

CVE-2015-2800 HIGH This Week

7.5 Jun 08

The user authentication module in Huawei Campus switches S5700, S5300, S6300, and S6700 with software before V200R001SPH

CVE-2016-6518 HIGH This Week

7.5 Sep 26

Memory leak in Huawei S9300, S5300, S5700, S6700, S7700, S9700, and S12700 devices allows remote attackers to cause a de

CVE-2015-3913 HIGH This Week

7.5 Jun 08

The IP stack in multiple Huawei Campus series switch models allows remote attackers to cause a denial of service (reboot

CVE-2014-8572 HIGH This Week

7.5 Apr 02

Huawei AC6605 with software V200R001C00; AC6605 with software V200R002C00; ACU with software V200R001C00; ACU with softw

CVE-2015-8676 HIGH This Week

7.5 Apr 14

Memory leak in Huawei S5300EI, S5300SI, S5310HI, S6300EI/ S2350EI, and S5300LI Campus series switches with software V200

CVE-2016-3678 HIGH This Week

7.5 Apr 11

Huawei Quidway S9700, S5700, S5300, S9300, and S7700 switches with software before V200R003SPH012 allow remote attackers

CVE-2016-8797 HIGH This Week

7.5 Apr 02

Huawei AR3200 with software V200R007C00, V200R005C32, V200R005C20; S12700 with software V200R008C00, V200R007C00; S5300

CVE-2016-8773 HIGH This Week

7.5 Apr 02

Huawei S5300 with software V200R003C00, V200R007C00, V200R008C00, V200R009C00; S5700 with software V200R001C00, V200R002

CVE-2014-4706 HIGH This Week

7.5 Apr 02

Huawei Campus S3700HI with software V200R001C00SPC300; Campus S5700 with software V200R002C00SPC100; Campus S7700 with s

CVE-2016-2404 HIGH This Week

7.5 Apr 02

Huawei switches S5700, S6700, S7700, S9700 with software V200R001C00SPC300, V200R002C00SPC100, V200R003C00SPC300, V200R0

CVE-2017-8147 HIGH This Week

7.5 Nov 22

AC6005 V200R006C10SPC200,AC6605 V200R006C10SPC200,AR1200 with software V200R005C10CP0582T, V200R005C10HP0581T, V200R005C

Same technique Information Disclosure

View all

CVE-2019-2725 CRITICAL POC

9.8

CVE-2021-34523 CRITICAL POC

9.0

CVE-2013-2251 CRITICAL POC

9.8

CVE-2017-5638 CRITICAL POC

9.8

CVE-2025-24813 CRITICAL POC

9.8

CVE-2025-68613 HIGH POC

8.8

CVE-2015-1701 HIGH POC

7.8

CVE-2017-0147 HIGH POC

7.5

References

Advisories & patches

ADVISORY https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210407-01-resourcemanagement-en

Search Externally

GitHub PoC

Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC

Back