CVE-2023-26548Network attack vector

Unauthenticated service interruption via serialization mismatch

Published Mar 27, 2023 · Updated Feb 19, 2025

Serialization/deserialization mismatch in the pgmng module of HarmonyOS and EMUI allows remote attackers to interrupt service via crafted data. Huawei has not disclosed the pgmng code path, data format, or incorrect operation that causes the mismatch when untrusted serialized data is processed. Network access without authentication is sufficient according to the published assessment; only availability is affected, and the precise failure mode is undisclosed.

CVSS severity7.5
High
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Serialization/deserialization mismatch in the pgmng module of HarmonyOS and EMUI allows remote attackers to interrupt service via crafted data. Huawei has not disclosed the pgmng code path, data format, or incorrect operation that causes the mismatch when untrusted serialized data is processed. Network access without authentication is sufficient according to the published assessment; only availability is affected, and the precise failure mode is undisclosed.

The record

CVE
CVE-2023-26548
Published
Mar 27, 2023
Updated
Feb 19, 2025
Vendor
Huawei Technologies Co., Ltd.
Product
HarmonyOS
Classifications
CWE-502, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 19, 2025Record 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=2.0.0
  2. Affected versionversion=2.0.1
  3. Affected versionversion=2.1.0
  4. Affected versionversion=3.0.0
  5. Affected versionversion=3.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Huawei Technologies Co., Ltd. · HarmonyOSversion=2.0.0; version=2.0.1; version=2.1.0; version=3.0.0; version=3.1.0
MindSpore · EMUIversion=11.0.1; version=12.0.0; version=12.0.1; version=13.0.0

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1499Endpoint Denial of Service

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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