9.1

CVE-2021-37020: huawei emui Out-of-bounds Write

Modified
Published 07-12-2021Last modified 04-08-2024

Vulnerability summary

CVE-2021-37020 is a critical (CVSS 9.1) Out-of-bounds Write vulnerability in huawei emui. EPSS estimates a 0.78% chance of exploitation in the next 30 days, higher than 55.3% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.1/10
010
Critical · v3.1 (NVD)
EPSS score
0.78%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 07-12-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

There is a Stack-based Buffer Overflow vulnerability in Huawei Smartphone.Successful exploitation of this vulnerability may lead to Out-of-bounds read.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

0.78%

Chance of exploitation in the next 30 days

Percentile

55%

Versus all other CVEs

30-day change

Increase +0.03 pp

From 0.75% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Huawei3 products
  • emui9.1.0 | 10.0.0 | 10.1.0 | 10.1.1 | 11.0.0 | 11.0.1
  • harmonyos2.0 | < 2.0
  • magic_ui3.0.0 | 3.1.0 | 3.1.1 | 4.0.0

1 vendor · 3 products

References

1 links