CVE-2018-0780

MEDIUM

Microsoft Edge - Information Disclosure via Scripting Engine Memory Handling

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2018-0780. PoCs published by Google Security Research.

AI-analyzed exploit summary This PoC exploits a vulnerability in AsmJSByteCodeGenerator::EmitCall where an array identifier used as a callee leads to an out-of-bounds read due to an uninitialized index register. The code demonstrates the issue by calling an array as a function, triggering the bug.

Description

Microsoft Edge in Microsoft Windows 10 Gold, 1511, 1607, 1703, 1709, and Windows Server 2016 allows an attacker to obtain information to further compromise the user's system, due to how the scripting engine handles objects in memory, aka "Scripting Engine Information Disclosure Vulnerability". This CVE ID is unique from CVE-2018-0767 and CVE-2018-0800.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · javascriptdoswindows
https://www.exploit-db.com/exploits/43720

This PoC exploits a vulnerability in AsmJSByteCodeGenerator::EmitCall where an array identifier used as a callee leads to an out-of-bounds read due to an uninitialized index register. The code demonstrates the issue by calling an array as a function, triggering the bug.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: ChakraCore (Microsoft Edge) versions prior to the fix for CVE-2018-0780
No auth needed
Prerequisites: A vulnerable version of ChakraCore or Microsoft Edge
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/43720/
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1040100
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/102389

Scores

CVSS v3 5.3
EPSS 0.5857
EPSS Percentile 99.0%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

Details

CWE
CWE-125
Status published
Products (2)
microsoft/chakracore < 1.7.6
microsoft/edge
Published Jan 04, 2018
Tracked Since Feb 18, 2026