What is CVE-2026-58550?

CVE-2026-58550 is a medium-severity vulnerability in Huawei Harmonyos, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 4.0/10. Published 2026-07-15.

How severe is CVE-2026-58550?

Medium severity. CVSS v3 base score is 4.0 out of 10.

Buffer overflow in Huawei Harmonyos

CVE-2026-58550

Out-of-bounds read vulnerability in the image codec module. Impact: Successful exploitation of this vulnerability may affect service confidentiality.

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Huawei Harmonyos — versions 6.1.0

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

psirt@huawei.com
psirt@huawei.com
psirt@huawei.com
psirt@huawei.com

Frequently asked questions

What is CVE-2026-58550?: CVE-2026-58550 is a medium-severity vulnerability in Huawei Harmonyos, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 4.0/10. Published 2026-07-15.
How severe is CVE-2026-58550?: Medium severity. CVSS v3 base score is 4.0 out of 10.