CVE-2018-8382
Exploitation likely. EPSS gives it a 12% chance of exploitation in the next 30 days. A vendor fix is available.
What to do
The vendor has published a fix. Version details are below where the sources state them.
What it is
From the CVE record
An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory, aka "Microsoft Excel Information Disclosure Vulnerability." This affects Microsoft Excel Viewer, Microsoft Office, Microsoft Excel.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
12% chance of exploitation activity in the next 30 days, which ranks it in the 96th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
- Attention now
Rising.
Lifecycle
22 events over 2961 days, from the signal feeds we watch.
- EPSS band changelow → moderateepss band change
- EPSS band changemoderate → lowepss band change
- EPSS band change0 → moderateepss band change
- EPSS band changemoderate → 0epss band change
- EPSS band change0 → moderateepss band change
- EPSS band changemoderate → 0epss band change
Affected products
- Microsoft ExcelConsumer Software / productivity
- excel 2013 rtConsumer Software
- excel viewerOSS Libraries / generic-library
- Microsoft Office 2016Consumer Software / productivity
- office compatibility packConsumer Software / productivity
- Microsoft Office Compatibility Pack Service Pack 3Consumer Software / productivity
- Microsoft Excel 2010 Service Pack 2Consumer Software / productivity
- Microsoft Excel 2013 Service Pack 1OSS Libraries / generic-library
And 8 more affected products. See all after sign-in
Technical detail
CVSS 3.0 vector
Open in the CVSS calculatorCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Scored 5.5 by NVD.
How it is reached
- Attack Vector LocalRequires local access to the vulnerable system (e.g. local login, malicious file)
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required NoneNo authentication required — anyone can exploit this
- User Interaction RequiredA user must click a link, open a file, or perform some action
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality HighTotal information disclosure — all data in the component is compromised
- Integrity NoneNo integrity impact
- Availability NoneNo availability impact
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
Sources
References in the record
- securityfocus.com/bid/105000
- securitytracker.com/id/1041463
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8382
And 1 more reference. See all after sign-in
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