High severity7.5NVD Advisory· Published May 27, 2021· Updated Jun 17, 2026
CVE-2021-22359
CVE-2021-22359
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- Huawei/S5700description
Patches
Vulnerability mechanics
References
1- www.huawei.com/en/psirt/security-advisories/huawei-sa-20210519-02-dos-ennvdVendor Advisory
News mentions
1- Huawei zero-day attack behind last year’s crash of Luxembourg's entire telecoms networkThe Record · May 19, 2026