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CVE-2017-11882: Microsoft Office Memory Corruption Vulnerability

criticalknown exploitedpublic exploitCVE-2017-11882
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Microsoft Office contains a memory corruption vulnerability that allows remote code execution in the context of the current user.

CSIRTS triage

vendor: Microsoftproduct: OfficeMemory corruption
What
A memory corruption vulnerability allows remote code execution in the context of the current user.
Who is affected
Users of Microsoft Office are affected by this vulnerability.
Urgency
Immediate action is required due to the critical nature of the vulnerability and successful exploitation being possible.
Action
Apply the latest security updates for Microsoft Office.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2021-11-03
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2017-11882

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2017-11882coverage & exploitation statusNVD · CVE.org

Recent advisories for Microsoft Office Memory

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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