CVE-2025-27241

Service crash via NULL pointer dereference

Published May 6, 2025 · Updated May 6, 2025

NULL pointer dereference in multimedia_av_codec in OpenHarmony 4.1.0 through 5.0.3 allows local users to crash the codec service. The multimedia_av_codec component dereferences a NULL pointer, but the vendor has not published the affected function or triggering input. Exploitation requires low local privileges and no user interaction; the bounded consequence is an availability interruption with no reported data access or modification.

CVSS severity3.3
Low
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in multimedia_av_codec in OpenHarmony 4.1.0 through 5.0.3 allows local users to crash the codec service. The multimedia_av_codec component dereferences a NULL pointer, but the vendor has not published the affected function or triggering input. Exploitation requires low local privileges and no user interaction; the bounded consequence is an availability interruption with no reported data access or modification.

The record

CVE
CVE-2025-27241
Published
May 6, 2025
Updated
May 6, 2025
Vendor
OpenHarmony
Product
OpenHarmony
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. May 6, 2025CVE publishedPublication date reported by the CVE source.
  2. May 6, 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=v4.1.0 <=v5.0.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

OpenHarmony · OpenHarmonyversion=v4.1.0 <=v5.0.3

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.3OpenHarmonyCVSS:3.1/AV:L/AC:L/PR:L/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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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