CVE-2021-22458
CVE-2021-22458 is a high-severity vulnerability in Huawei Harmonyos with a CVSS 3.x base score of 7.8. 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-125.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 4.6
- EPSS exploit prediction: 0% (8th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-125
- Affected product: Huawei Harmonyos
- Published:
- Last modified:
Description
A component of the HarmonyOS has a Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability. Local attackers may exploit this vulnerability to cause arbitrary code execution.
Frequently asked questions
- What is CVE-2021-22458?
- A component of the HarmonyOS has a Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability. Local attackers may exploit this vulnerability to cause arbitrary code execution.
- How severe is CVE-2021-22458?
- CVE-2021-22458 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-22458 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-22458?
- CVE-2021-22458 affects Huawei Harmonyos. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-22458?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-22458 published?
- CVE-2021-22458 was published on 2021-10-28 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:huawei:harmonyos:2.0:*:*:*:*:*:*:*
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