THREATPORT/VULNERABILITY/CVE-2017-11856
HIGH SEVERITY

CVE-2017-11856

Internet Explorer vulnerability

CVSS
7.5
EPSS
5.6%
EPSS pct
92th
Exploited
No known
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 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-2017-11855.
Affected vendor
Microsoft
Affected product
Internet Explorer
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-119 — Improper Restriction of Operations within Memory Bounds
Published
2017-11-15

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, high attack complexity, requiring no privileges, user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 5.6% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 92% of all scored CVEs.

Check your external exposure to CVE-2017-11856

  • Confirm whether Microsoft Internet Explorer is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2017-11856.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-11856

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-11856 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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Are you exposed to CVE-2017-11856?

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