CVE-2021-0393

HIGH

Android - Remote Code Execution via Integer Overflow in Scanner::LiteralBuffer::NewCapacity

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-0393. PoCs published by Trinadh465.

AI-analyzed exploit summary The repository appears to be a partial or incomplete checkout of the V8 JavaScript engine, lacking any exploit code or technical details specific to CVE-2021-0393. It includes build configuration files, benchmarks, and documentation but no PoC or analysis.

Description

In Scanner::LiteralBuffer::NewCapacity of scanner.cc, there is a possible out of bounds write due to an integer overflow. This could lead to remote code execution if an attacker can supply a malicious PAC file, with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-8.1 Android-9 Android-10Android ID: A-168041375

Exploits (1)

nomisec STUB
by Trinadh465 · poc
https://github.com/Trinadh465/external_v8_AOSP10_r33_CVE-2021-0393

The repository appears to be a partial or incomplete checkout of the V8 JavaScript engine, lacking any exploit code or technical details specific to CVE-2021-0393. It includes build configuration files, benchmarks, and documentation but no PoC or analysis.

Classification
Stub 90%
Attack Type
Other
Complexity
Trivial
Reliability
Theoretical
Target: V8 JavaScript Engine (AOSP10_r33)
No auth needed
Prerequisites: None identified
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (1)

Core 1
Core References

Scores

CVSS v3 7.8
EPSS 0.0096
EPSS Percentile 56.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-190 CWE-787
Status published
Products (4)
google/android 8.1
google/android 9.0
google/android 10.0
google/android 11.0
Published Mar 10, 2021
Tracked Since Feb 18, 2026