CVE-2026-28538

Local service interruption via certificate path traversal

Published Mar 5, 2026 · Updated Mar 5, 2026

Path traversal in Huawei HarmonyOS 5.1.0 and 6.0.0 allows local users to interrupt availability through the certificate management module. Huawei names the module but has not disclosed the code locus or how crafted path input escapes its intended directory. Published assessments disagree on whether prior privileges are required, and no source specifies whether the interruption is a hang, crash, or another failure mode.

CVSS severity5.9
Medium
EPSS probability0.07%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Huawei HarmonyOS 5.1.0 and 6.0.0 allows local users to interrupt availability through the certificate management module. Huawei names the module but has not disclosed the code locus or how crafted path input escapes its intended directory. Published assessments disagree on whether prior privileges are required, and no source specifies whether the interruption is a hang, crash, or another failure mode.

The record

CVE
CVE-2026-28538
Published
Mar 5, 2026
Updated
Mar 5, 2026
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-22, CWE-24
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 5, 2026Record 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=5.1.0
  2. Affected versionversion=6.0.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

MindSpore · HarmonyOSversion=5.1.0; version=6.0.0

Published CVSS scores

5.9Huawei TechnologiesCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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 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-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-24Path Traversal: '../filedir'

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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