SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-8635

Microsoft browsers in Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allow an attacker to execute arbitrary code in the context…

EXPLOIT ✓HIGH 7.5EPSS 55.9%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 55.9%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

Description

Microsoft browsers in Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allow an attacker to execute arbitrary code in the context of the current user due to the way that JavaScript engines render when handling objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-8634, CVE-2017-8636, CVE-2017-8638, CVE-2017-8639, CVE-2017-8640, CVE-2017-8641, CVE-2017-8645, CVE-2017-8646, CVE-2017-8647, CVE-2017-8655, CVE-2017-8656, CVE-2017-8657, CVE-2017-8670, CVE-2017-8671, CVE-2017-8672, and CVE-2017-8674.

CVSS 3.0
7.5 HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
55.88% probability · 99th percentile
Public exploits
1 in Exploit-DB · verified · first 17 August 2017
CISA KEV
Not listed
Weakness
CWE-119
Affected
microsoft/internet explorer · microsoft/edge
Source
secure@microsoft.com
EPSS trend
0%30%60%21 September 2026: 44.23%22 September 2026: 55.88%27 October 2026: 55.88%21 September 202627 October 2026

EPSS moved from 44.2% on 21 September 2026 to 55.9% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-42471source ↗Microsoft Edge Chakra - 'TryUndeleteProperty' Incorrect Usage (Denial of Service)windows · Google Security Researchdos17 August 2017yes

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.