CVE-2025-52458: in OpenHarmony v5.1.0 and prior versions allow a local attacker arbitrary code execution in pre-installed apps

Routine

MEDIUM 5.5MITIGATE

CVE-2025-52458 is a medium-severity flaw (CVSS 5.5) affecting openharmony. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

in OpenHarmony v5.1.0 and prior versions allow a local attacker arbitrary code execution in pre-installed apps through out-of-bounds write. This vulnerability can be exploited only in restricted scenarios.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 95%)
CISA exploited list	No
Weakness	CWE-787
Published	2026-03-16
Last modified	2026-06-17

Publisher (CNA): OpenHarmony · Vendor: openatom

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-16 14:17 UTCPublished CVE record published
2026-06-17 09:36 UTCUpdated Record last modified

openatom openharmony MITIGATE

Affected: 5.0.3 · 5.1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.0.3

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-52458?

openharmony: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-52458 being exploited?

CVE-2025-52458 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-52458 affect?

CVE-2025-52458 affects openharmony. Severity is medium (CVSS 5.5). in OpenHarmony v5.1.0 and prior versions allow a local attacker arbitrary code execution in pre-installed apps through out-of-bounds write. This vulnerability can be exploited only in restricted scenarios.

How urgent is CVE-2025-52458?

Priority 21/100. No elevated risk signals yet.

Related CVEs

CVE-2026-0639 LOW 3.3 UPGRADE in OpenHarmony v6.0 and prior versions allow a local attacker case DOS through missing release of memory.
CVE-2025-6969 MEDIUM 5.0 MITIGATE in OpenHarmony v5.1.0 and prior versions allow a local attacker cause DOS through improper input.
CVE-2025-41432 MEDIUM 5.5 MITIGATE in OpenHarmony v5.1.0 and prior versions allow a local attacker arbitrary code execution in pre-installed apps
CVE-2025-27577 HIGH 8.4 UPGRADE in OpenHarmony v5.0.3 and prior versions allow a local attacker arbitrary code execution in tcb through race c
CVE-2025-27563 LOW 3.3 UPGRADE in OpenHarmony v5.0.3 and prior versions allow a local attacker cause information leak through get permission.

References

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