Which products and versions are affected by CVE-2017-11839?

Affected: Edge (Microsoft). The full list is in the CVE brief.

Is CVE-2017-11839 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2017-11839 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2017-11839?

Public exploit code is available.

Is there a fix for CVE-2017-11839?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2017-11839 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2017-11839

HighPublic exploit

Published Nov 15, 2017 · Updated May 12, 2026

Key Facts

Patch immediately

CVE-2017-11839 is a high-severity vulnerability (CVSS 7.5 v3) affecting Edge (Microsoft).
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 62% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v3

7.5

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

62%

Higher than 99.1% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2017-11839 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Microsoft Edge in Windows 10 Gold, 1511, 1607, 1703, 1709, Windows Server 2016 and Windows Server, version 1709 allows an attacker to take control of an affected system, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-11836, CVE-2017-11837, CVE-2017-11838, CVE-2017-11840, CVE-2017-11841, CVE-2017-11843, CVE-2017-11846, CVE-2017-11858, CVE-2017-11859, CVE-2017-11861, CVE-2017-11862, CVE-2017-11866, CVE-2017-11869, CVE-2017-11870, CVE-2017-11871, and CVE-2017-11873.

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
EdgeMicrosoft	See advisory	n/a

Timeline

Publicly disclosed
Nov 15, 2017
Last updated
May 12, 2026

Weakness Type

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

advisory43180
advisory101735
advisory1039780
patchhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11839
exploitExploitDB-43180

FAQ

Common Questions.

Microsoft Edge in Windows 10 Gold, 1511, 1607, 1703, 1709, Windows Server 2016 and Windows Server, version 1709 allows an attacker to take control of an affected system, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability".
Affected: Edge (Microsoft). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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