Paper/Archive/CVE-2021-46839

CVE-2021-46839

Huawei HarmonyOS — The HW_KEYMASTER module has a vulnerability of missing bounds check on length.Successful exploitation of this vulnerability may cause mal…

EPSS 0.5%CVSS 9.1

critical.is priorityof 100

CVSS 9.1 (NVD, ADP agree)9.1 / 10 × 3027.3 Not in CISA KEV+300.0 EPSS percentile 44.9.449 × 209.0 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

The HW_KEYMASTER module has a vulnerability of missing bounds check on length.Successful exploitation of this vulnerability may cause malicious construction of data, which results in out-of-bounds access.

Affected

ProductAffectedFixed inSource

HarmonyOS2.0–CNA

EMUI12.0.0–CNA

EMUI11.0.1–CNA

Scores by source

CISA ADP9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

NVD9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refconsumer.huawei.com/en/support/bulletin/2022/10 refdevice.harmonyos.com/en/docs/security/update/security-bulletins-phones-202210-0000001416095697