CVE-2022-44455

Local code execution via unchecked buffer copy

Published Dec 8, 2022 · Updated Aug 3, 2024

A buffer overflow in OpenHarmony 3.0 through 3.0.6 and 3.1 through 3.1.2 allows local users to execute code or crash applications. The startup_appspawn appspawn and nwebspawn services insufficiently validate malicious application input before copying it into a bounded buffer. Execution requires an unprivileged malicious application on the device and can cross application boundaries or terminate a targeted application.

CVSS severity6.8
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A buffer overflow in OpenHarmony 3.0 through 3.0.6 and 3.1 through 3.1.2 allows local users to execute code or crash applications. The startup_appspawn appspawn and nwebspawn services insufficiently validate malicious application input before copying it into a bounded buffer. Execution requires an unprivileged malicious application on the device and can cross application boundaries or terminate a targeted application.

The record

CVE
CVE-2022-44455
Published
Dec 8, 2022
Updated
Aug 3, 2024
Vendor
OpenHarmony
Product
OpenHarmony
Classifications
CWE-120, CAPEC-233, T1068
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 8, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=3.0.0
  2. Affected versionversion=3.1.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

OpenHarmony · OpenHarmonyversion=3.0.0; version=3.1.0

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.8OpenHarmonyCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CAPEC-233Privilege Escalation
T1068Exploitation for Privilege Escalation

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

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Your stack

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