Home/CVE/Microsoft Excel 2016 Click-to-Run (C2R) allows an attacker to run arbitrary code in the context of the current user by f
CVE

CVE-2017-11884

Microsoft Excel 2016 Click-to-Run (C2R) allows an attacker to run arbitrary code in the context of the current user by f

Microsoft Excel 2016 Click-to-Run (C2R) allows an attacker to run arbitrary code in the context of the current user by failing to properly handle objects in memory, aka "Microsoft Office Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-11882.

HIGH · CVSS 7.8 EPSS 0.4992
Schedule remediation
  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 2% of all CVEs by exploitation likelihood
  • CVSS base score ≥ 7.0
Sigma rules5 YARA rules0
⬡

Weakness Classification

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

Affected Products & Versions

1
microsoft excelall versions
◈

Sigma Hunt Rules

5
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighPython Function Execution Security Warning Disabled In Excel
producthighPotential Excel.EXE DCOM Lateral Movement Via ActivateMicrosoftApp
producthighPotential Persistence Via Excel Add-in - Registry
producthighPython Function Execution Security Warning Disabled In Excel - Registry
productmediumMicrosoft Excel Add-In Loaded From Uncommon Location
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Scoring & Timeline

7.8
HIGH · CVSS v3.0 · secure@microsoft.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD15 Nov 2017 · 03:29 AM
CVSS VectorCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

1
msrcCVE-2017-11884Remote Code Execution
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.securityfocus.com/bid/101766Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039783Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11884PatchVendor Advisory
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