9.8

CVE-2022-3806: zephyrproject-rtos zephyr Double Free

CVSS: 9.8v3.1CriticalModified
Published 19-01-2023Last modified 03-04-2025
Open JSON

Vulnerability summary

CVE-2022-3806 is a critical (CVSS 9.8) Double Free vulnerability in zephyrproject-rtos zephyr. EPSS estimates a 1.01% chance of exploitation in the next 30 days, higher than 62.6% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
1.01%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 19-01-2023
    PublishedVulnerability first disclosed.
  2. 03-04-2025
    Last modifiedVulnerability information updated.

Description

Inconsistent handling of error cases in bluetooth hci may lead to a double free condition of a network buffer.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

1.01%

Chance of exploitation in the next 30 days

Percentile

63%

Versus all other CVEs

30-day change

0.00 pp

From 1.01% on 21-09-2026

21-09-202621-10-2026
EPSS score
1.01%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Zephyr

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Zephyrproject1 product
Zephyrproject-rtos1 product
  • zephyr≥ unspecified, ≤ v3.2

2 vendors · 2 products

References

1 links