SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-8602

Microsoft browsers on Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 R2, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allow a spoofing vulnerability in the way they parse HTTP…

MEDIUM 6.5EPSS 5.33%

Does this matter?

Lower severity and a low EPSS score (5.33%). Track it; it rarely justifies an emergency change on its own.

Description

Microsoft browsers on Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 R2, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allow a spoofing vulnerability in the way they parse HTTP content, aka "Microsoft Browser Spoofing Vulnerability."

CVSS 3.0
6.5 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS
5.33% probability · 93th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-20
Affected
microsoft/edge · microsoft/internet explorer
Source
secure@microsoft.com
EPSS trend
0%5%10%27 October 2026: 5.33%27 October 202627 October 2026

EPSS 5.3% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

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