Vulnerability · Published May 19, 2026 · Assigned by OpenHarmony
CVE-2026-27648web_webview has an out-of-bounds write vulnerability
High 8.8
In plain English
A high-severity out-of-bounds write in OpenHarmony from OpenHarmony. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 46% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.6%top 53.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
in OpenHarmony v6.0 and prior versions allow a remote attacker arbitrary code execution in pre-installed apps.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| OpenHarmony | OpenHarmony | v5.0.3 – through v6.0 |
Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H