CVE-2018-8598
An information disclosure vulnerability exists when Microsoft Excel improperly discloses the...
An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory, aka "Microsoft Excel Information Disclosure Vulnerability." This affects Office 365 ProPlus, Microsoft Office, Microsoft Excel. This CVE ID is unique from CVE-2018-8627.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory, aka "Microsoft Excel Information Disclosure Vulnerability." This affects Office 365 ProPlus, Microsoft Office, Microsoft Excel. This CVE ID is unique from CVE-2018-8627.
- Record
CVE-2018-8598- CVSS 3.0
- 4.7 Medium
CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N - CVSS 2.0
- 2.6 Low
AV:N/AC:H/Au:N/C:P/I:N/A:N - Updated
- 2026-11-02
CVE List No score
An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory, aka "Microsoft Excel Information Disclosure Vulnerability." This affects Office 365 ProPlus, Microsoft Office, Microsoft Excel. This CVE ID is unique from CVE-2018-8627.
- Record
CVE-2018-8598- Updated
- 2026-11-02
EUVDEUVD-2018-20213 No score
An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory, aka "Microsoft Excel Information Disclosure Vulnerability." This affects Office 365 ProPlus, Microsoft Office, Microsoft Excel. This CVE ID is unique from CVE-2018-8627.
- Record
EUVD-2018-20213- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-643h-w2r6-x59x
An information disclosure vulnerability exists when Microsoft Excel improperly discloses the...
An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory, aka "Microsoft Excel Information Disclosure Vulnerability." This affects Office 365 ProPlus, Microsoft Office, Microsoft Excel. This CVE ID is unique from CVE-2018-8627.
- Record
GHSA-643h-w2r6-x59x- CVSS 3.0
- 4.7 Medium
CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-8598 is a medium vulnerability (CVSS 4.7) in Microsoft Excel, published December 12, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 6.22%, the 93rd percentile. No source names a fixed version.