7.8

CVE-2020-23539: realtek rtl8723de_firmware NULL Pointer Dereference

CVSS: 7.8v2.0HighModified
Published 08-04-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-23539 is a high (CVSS 7.8) NULL Pointer Dereference vulnerability in realtek rtl8723de_firmware. EPSS estimates a 1.79% chance of exploitation in the next 30 days, higher than 78% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
42/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v2.0 (NVD)
EPSS score
1.79%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

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

Description

An issue was discovered in Realtek rtl8723de BLE Stack <= 4.1 that allows remote attackers to cause a Denial of Service via the interval field to the CONNECT_REQ message.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.79%

Chance of exploitation in the next 30 days

Percentile

78%

Versus all other CVEs

30-day change

0.00 pp

From 1.79% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.79%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    My Request

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Realtek1 product

1 vendor · 1 product

References

1 links