OpenHarmony v6.0 and prior RCE via pre-installed app vulnerability
CVE-2026-27648 Published on May 19, 2026
web_webview has an out-of-bounds write vulnerability
in OpenHarmony v6.0 and prior versions allow a remote attacker arbitrary code execution in pre-installed apps.
Vulnerability Analysis
CVE-2026-27648 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a Memory Corruption Vulnerability?
The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.
CVE-2026-27648 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2026-27648
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Affected Versions
OpenHarmony:- Version v5.0.3, <= v6.0 is affected.