7.5

CVE-2018-20823: mi mi_5s_firmware Improper Input Validation

CVSS: 7.5v3.0HighModified
Published 25-04-2019Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-20823 is a high (CVSS 7.5) Improper Input Validation vulnerability in mi mi_5s_firmware. EPSS estimates a 1.48% chance of exploitation in the next 30 days, higher than 73.4% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
40/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
1.48%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 25-04-2019
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

The gyroscope on Xiaomi Mi 5s devices allows attackers to cause a denial of service (resonance and false data) via a 20.4 kHz audio signal, aka a MEMS ultrasound attack.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.48%

Chance of exploitation in the next 30 days

Percentile

73%

Versus all other CVEs

30-day change

0.00 pp

From 1.48% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.48%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (hackaday.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Mi1 product

1 vendor · 1 product

References

2 links