CVE-2018-0798
Actively exploited. CVE-2018-0798 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.
Public exploit code is available. Proof-of-concept or working exploit code for CVE-2018-0798 is indexed in GitHub PoC. Expect opportunistic scanning and exploitation attempts — prioritize remediation.
Microsoft Office contains a memory corruption vulnerability due to the way objects are handled in memory. Successful exploitation allows for remote code execution in the context of the current user. This vulnerability is known to be chained with CVE-2018-0802.
CSIRTS triage
- What
- The memory corruption vulnerability allows for remote code execution in the context of the current user.
- Who is affected
- Users of Microsoft Office are affected.
- Urgency
- Immediate action is required due to active exploitation and critical severity.
- 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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Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 100% of all EPSS-scored CVEs.
Exploit availability
Public exploit or proof-of-concept code for CVE-2018-0798 is indexed in these free datasets. Available exploit code raises real-world risk independent of the CVSS score.
- GitHub PoCPublic proof-of-concept repositories on GitHub reference this CVE.look it up ↗
Advisory coverage (1)
- criticalexploitedCVE-2018-0798: Microsoft Office Memory Corruption Vulnerabilitycisa-kev · 2021-11-03
External references
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