CVE-2017-11855

high
Published 2017-11-15 ยท Modified 2026-05-13
CVSS v3
7.5
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
8.5

Description

Internet Explorer in Microsoft Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, 1703, 1709, Windows Server 2016 and Windows Server, version 1709 allows an attacker to gain the same user rights as the current user, due to how Internet Explorer handles objects in memory, aka "Internet Explorer Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-11856.

Predictions

Exploit likelihood
83%
Patch ETA
โ€”

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ€” if you've already worked around this in production โ€” publish your fix to the community-verified tier.

โœš Propose a mitigation on Community โ†’ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-43371 dos windows verified
Google Security Research ยท 2017-12-19

Microsoft Windows - 'jscript!JsArraySlice' Uninitialized Variable

Source code queued for fetch โ€” refresh in a moment.

OS impact

OSVersionStatusFixed in
windows windows1511not-affected
windows windows1607not-affected
windows windows1703not-affected
windows windows1709not-affected
windows windowsr2not-affected
windows windows-not-affected

Application impact

VendorProductVersionsFixed
windows microsoftinternet_explorer11
windows microsoftinternet_explorer10
windows microsoftinternet_explorer9
windows microsoftinternet_explorer9

References

CWEs

CWE-119

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.