CVE-2022-36423

LAN service crash via unbounded JSON recursion

Published Sep 9, 2022 · Updated Sep 17, 2024

Stack overflow in affected OpenHarmony 1.1, 3.0, and 3.1 releases allows remote attackers on the LAN to crash softbus_server. The SoftBus auth, proxy, and CoAP handlers pass deeply nested JSON to cJSON_Parse, whose recursive descent lacks a sufficiently low nesting limit and exhausts the process stack. An attacker needs reachability to one of those LAN-facing ports; successful exploitation terminates the SoftBus process, with no reported confidentiality or integrity impact.

CVSS severity7.4
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Stack overflow in affected OpenHarmony 1.1, 3.0, and 3.1 releases allows remote attackers on the LAN to crash softbus_server. The SoftBus auth, proxy, and CoAP handlers pass deeply nested JSON to cJSON_Parse, whose recursive descent lacks a sufficiently low nesting limit and exhausts the process stack. An attacker needs reachability to one of those LAN-facing ports; successful exploitation terminates the SoftBus process, with no reported confidentiality or integrity impact.

The record

CVE
CVE-2022-36423
Published
Sep 9, 2022
Updated
Sep 17, 2024
Vendor
OpenHarmony
Product
OpenHarmony
Classifications
CWE-16, T1499.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 9, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=OpenHarmony-v1.1.x-LTS <=1.1.5
  2. Affected versionversion=OpenHarmony-v3.0.x-LTS <=3.0.5
  3. Affected versionversion=OpenHarmony-v3.1.x-Release <=3.1.2

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

OpenHarmony · OpenHarmonyversion=OpenHarmony-v1.1.x-LTS <=1.1.5; version=OpenHarmony-v3.0.x-LTS <=3.0.5; version=OpenHarmony-v3.1.x-Release <=3.1.2

Published CVSS scores

7.4OpenHarmonyCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-16Configuration
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo