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TI-2021-21550 Aliases CVE-2021-46882GHSA-9frc-g2gh-vg55

Buffer overflow in Huawei HarmonyOS

Priority LOW 39CWE-120Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

The video framework has memory overwriting caused by addition overflow. Successful exploitation of this vulnerability may affect availability.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00434 37th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
HuaweiHarmonyOS2.1.0; 2.0.1; 2.0.0—No fix listedCNA
HuaweiEMUI12.0.1; 12.0.0; 11.0.0; 10.1.1; 10.1.0—No fix listedCNA
  • HarmonyOS VendorHuawei Affected 2.1.0; 2.0.1; 2.0.0 Fixed in — No fix listed CNA
  • EMUI VendorHuawei Affected 12.0.1; 12.0.0; 11.0.0; 10.1.1; 10.1.0 Fixed in — No fix listed CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:o:huawei:emui:10.1.0:*:*:*:*:*:*:*10.1.0VulnerableHuawei
cpe:2.3:o:huawei:emui:10.1.1:*:*:*:*:*:*:*10.1.1VulnerableHuawei
cpe:2.3:o:huawei:emui:11.0.0:*:*:*:*:*:*:*11.0.0VulnerableHuawei
cpe:2.3:o:huawei:emui:12.0.0:*:*:*:*:*:*:*12.0.0VulnerableHuawei
cpe:2.3:o:huawei:emui:12.0.1:*:*:*:*:*:*:*12.0.1VulnerableHuawei
  • cpe:2.3:o:huawei:emui:10.1.0:*:*:*:*:*:*:* Versions 10.1.0 Vulnerable ·Huawei
  • cpe:2.3:o:huawei:emui:10.1.1:*:*:*:*:*:*:* Versions 10.1.1 Vulnerable ·Huawei
  • cpe:2.3:o:huawei:emui:11.0.0:*:*:*:*:*:*:* Versions 11.0.0 Vulnerable ·Huawei
  • cpe:2.3:o:huawei:emui:12.0.0:*:*:*:*:*:*:* Versions 12.0.0 Vulnerable ·Huawei
  • cpe:2.3:o:huawei:emui:12.0.1:*:*:*:*:*:*:* Versions 12.0.1 Vulnerable ·Huawei

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-46882
  2. 2026-10-03 Alias added: GHSA-9frc-g2gh-vg55

References

Advisory 1

  • TI-2021-17252 Vulnerability of writing data to an arbitrary address in the HW_KEYMASTER module. CVSS 3.1HIGH 7.5
  • TI-2022-21903 Deserialization of untrusted data in Huawei HarmonyOS CVSS 3.1CRITICAL 9.8
  • TI-2022-21900 Deserialization of untrusted data in Huawei HarmonyOS CVSS 3.1CRITICAL 9.8
  • TI-2022-21899 Deserialization of untrusted data in Huawei HarmonyOS CVSS 3.1CRITICAL 9.8
  • TI-2022-19984 Out-of-bounds read in Huawei HarmonyOS CVSS 3.1CRITICAL 9.8
  • TI-2022-19982 Out-of-bounds write in Huawei HarmonyOS CVSS 3.1CRITICAL 9.8
See all 810 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences