CVE-2021-22426

CVE-2021-22426 is a critical-severity vulnerability in Huawei Emui with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Description

There is a memory address out of bounds in smartphones. Successful exploitation of this vulnerability may cause malicious code to be executed.

Frequently asked questions

What is CVE-2021-22426?
There is a memory address out of bounds in smartphones. Successful exploitation of this vulnerability may cause malicious code to be executed.
How severe is CVE-2021-22426?
CVE-2021-22426 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-22426 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22426?
CVE-2021-22426 primarily affects Huawei Emui. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-22426?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-22426 published?
CVE-2021-22426 was published on 2022-02-25 and last updated on 2026-06-17.

References

Affected products (3)

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Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

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