CVE-2022-45126

Kernel data disclosure via uninitialized timespec padding

Published Jan 9, 2023 · Updated Apr 9, 2025

Kernel stack data exposure in affected OpenHarmony releases allows local users to read four bytes of kernel memory via SysClockGettime. The kernel_liteos_a SysClockGettime path copies a timespec structure with four uninitialized padding bytes from the kernel stack to user space. The call is locally reachable without privileges or user interaction; no remote trigger, data modification, or broader disclosure is documented.

CVSS severity4.0
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Kernel stack data exposure in affected OpenHarmony releases allows local users to read four bytes of kernel memory via SysClockGettime. The kernel_liteos_a SysClockGettime path copies a timespec structure with four uninitialized padding bytes from the kernel stack to user space. The call is locally reachable without privileges or user interaction; no remote trigger, data modification, or broader disclosure is documented.

The record

CVE
CVE-2022-45126
Published
Jan 9, 2023
Updated
Apr 9, 2025
Vendor
OpenHarmony
Product
OpenHarmony
Classifications
CWE-120, CWE-787, CAPEC-131, T1005
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 9, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 9, 2025Record 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=1.1.0 <=1.1.5
  2. Affected versionversion=3.0.0 <=3.0.6
  3. Affected versionversion=3.1.0 <=3.1.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

OpenHarmony · OpenHarmonyversion=1.1.0 <=1.1.5; version=3.0.0 <=3.0.6; version=3.1.0 <=3.1.4

Published CVSS scores

7.8NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.0OpenHarmonyCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/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')
CWE-787Out-of-bounds Write
CAPEC-131Resource Leak Exposure
T1005Data from Local System

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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