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CVE-2025-27247· NVD / CVE Program· CNA OpenHarmony

Pasteboard has an improper preservation of permissions vulnerability

in OpenHarmony v5.0.3 and prior versions allow a local attacker cause information leak through get permission.

MediumCVSS 5.5 · v3.1—No exploit No fix recorded
Published
Jun 8, 2025
Updated
Jun 17, 2026
EPSS
0.1% · 2th percentile
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Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · OpenHarmony
5.5
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Affected systems

VendorProduct
openatomopenharmony

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • openatom openharmonyup to 5.0.3 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (OpenHarmony). Independent of NVD's CPE analysis and usually ahead of it.

  • OpenHarmony OpenHarmony

    • v5.0.1 and later · up to and including v5.0.3affected

Same product

openatom: all records

Other highest-scoring records for the same primary product.

  • CVE-2024-37185Arkcompiler Ets Runtime has an out-of-bounds write vulnerability
    39Monitor
  • CVE-2024-37077Arkcompiler Ets Runtime has an out-of-bounds write vulnerability
    39Monitor
  • CVE-2024-37030Arkcompiler Ets Runtime has a use after free vulnerability
    39Monitor
  • CVE-2024-36260Arkcompiler Ets Runtime has an out-of-bounds write vulnerability
    39Monitor
  • CVE-2024-36243Arkcompiler Ets Runtime has an out-of-bounds read vulnerability
    39Monitor
  • CVE-2025-22851Liteos_A has an integer overflow vulnerability
    35Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2025-266910 days aparttelephony_call_manager has an improper preservation of permissions vulnerability
    22Monitor
  • CVE-2025-266930 days apartsecurity_access_token has an improper preservation of permissions vulnerability
    22Monitor
  • CVE-2025-275630 days apartsecurity_access_token has an improper preservation of permissions vulnerability
    22Monitor
  • CVE-2024-22177432 days apartAudio has an improper preservation of permissions vulnerability
    22Monitor
  • CVE-2024-21816461 days apartBackground task manager has an improper preservation of permissions vulnerability
    22Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-281 · Improper Preservation of Permissions

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records