Improper input validation in S5700;S6700
Priority LOW 34CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
There is a denial of service vulnerability in the verisions V200R005C00SPC500 of S5700 and V200R005C00SPC500 of S6700. An attacker could exploit this vulnerability by sending specific message to a targeted device. Due to insufficient input validation, successful exploit can cause the service abnormal.
Why it matters now
EPSS 0.00708 53rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | S5700;S6700 | V200R005C00SPC500 | — | No fix listed | CNA |
- S5700;S6700 Vendor— Affected V200R005C00SPC500 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:huawei:s5700_firmware:v200r005c00spc500:*:*:*:*:*:*:* | v200r005c00spc500 | Vulnerable | Huawei |
| cpe:2.3:h:huawei:s5700:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Huawei |
| cpe:2.3:o:huawei:s6700_firmware:v200r005c00spc500:*:*:*:*:*:*:* | v200r005c00spc500 | Vulnerable | Huawei |
| cpe:2.3:h:huawei:s6700:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Huawei |
- cpe:2.3:o:huawei:s5700_firmware:v200r005c00spc500:*:*:*:*:*:*:* Versions v200r005c00spc500 Vulnerable ·Huawei
- cpe:2.3:h:huawei:s5700:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Huawei
- cpe:2.3:o:huawei:s6700_firmware:v200r005c00spc500:*:*:*:*:*:*:* Versions v200r005c00spc500 Vulnerable ·Huawei
- cpe:2.3:h:huawei:s6700:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Huawei
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-22359
- 2026-10-03 Alias added: GHSA-qmm3-r49c-cwh6
References
More Huawei S5700 Firmware vulnerabilities
- TI-2019-03686 Out-of-bounds read in AP2000;IPS Module;NGFW… CVSS 3.1HIGH 8.6
- TI-2016-03476 Huawei S12700 switches with software before V200R008C00SPC500 and S5700 switches with… CVSS 3.0HIGH 8.1
- TI-2019-03714 Improper input validation in Huawei S12700, S12700, S12700, S12700, S12700, S12700… CVSS 3.0HIGH 7.5
- TI-2017-12674 Improper input validation in Huawei S12700,S5700,S6700,S7700,S9700 CVSS 3.0HIGH 7.5
- TI-2016-07233 Improper input validation in Huawei S12700, S5700, S6700, S7700, S9700 CVSS 3.0HIGH 7.5
- TI-2016-03113 Huawei Quidway S9700, S5700, S5300, S9300, and S7700 switches with software before… CVSS 3.0HIGH 7.5
Sources
- CVE-2021-22359 · CVE Program
- CVE-2021-22359 · NVD
- FIRST EPSS
- GHSA-qmm3-r49c-cwh6 · GitHub Advisory Database · CC BY 4.0
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