CVE-2018-8627
published 2018-12-12CVE-2018-8627: An information disclosure vulnerability exists when Microsoft Excel software reads out of bound memory due to an uninitialized variable, which could disclose…
PriorityP275medium5.5CVSS 3.0
AVLACLPRNUIRSUCHINAN
ITWVulnCheck KEV
Exploited in the wild
EPSS
8.19%
94.2th percentile
An information disclosure vulnerability exists when Microsoft Excel software reads out of bound memory due to an uninitialized variable, which could disclose the contents of memory, aka "Microsoft Excel Information Disclosure Vulnerability." This affects Microsoft Office, Office 365 ProPlus, Microsoft Excel, Microsoft Excel Viewer, Excel. This CVE ID is unique from CVE-2018-8598.
Affected
41 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | excel | — | — |
| microsoft | excel | — | — |
| microsoft | excel | — | — |
| microsoft | excel | — | — |
| microsoft | excel_viewer | — | — |
| microsoft | microsoft_excel | — | — |
| microsoft | microsoft_excel | — | — |
| microsoft | microsoft_excel | — | — |
| microsoft | microsoft_excel | — | — |
| microsoft | microsoft_excel | — | — |
| microsoft | microsoft_excel | — | — |
| microsoft | microsoft_excel | — | — |
| microsoft | microsoft_excel_viewer | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | office | — | — |
| microsoft | office | — | — |
| microsoft | office | — | — |
| microsoft | office | — | — |
| microsoft | office | — | — |
Detection & IOCsextracted from sources · hover to see the quote
- →Vulnerability is triggered when a user opens a specially crafted Microsoft Excel file; detection should focus on suspicious Excel file opens in affected products (Microsoft Office, Office 365 ProPlus, Microsoft Excel, Microsoft Excel Viewer). ↗
- →The vulnerability results in out-of-bound memory reads due to an uninitialized variable; memory disclosure payloads embedded in Excel files may be detectable via content inspection. ↗
- ·Exploit status is confirmed as NOT publicly exploited and NOT publicly disclosed at time of advisory; exploitation likelihood rated 'Less Likely' for both latest and older software releases. ↗
- ·The fix initializes the affected variable; patched systems are not vulnerable. Ensure all affected Office/Excel products are updated before relying solely on detection. ↗
CVSS provenance
nvdv3.05.5MEDIUMCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:P/I:N/A:N
vulncheck4.7MEDIUM
vendor_msrc5.5HIGH
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Microsoft
Microsoft Excel Information Disclosure Vulnerability
vendor_msrc·2018-12-11·CVSS 5.5
CVE-2018-8627 [MEDIUM] Microsoft Excel Information Disclosure Vulnerability
Microsoft Excel Information Disclosure Vulnerability
Description: An information disclosure vulnerability exists when Microsoft Excel software reads out of bound memory due to an uninitialized variable, which could disclose the contents of memory. An attacker who successfully exploited the vulnerability could view out of bound memory.
Exploitation of the vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Excel software.
The security update addresses the vulnerability by properly initializing the affected variable.
FAQ: What type of information could be disclosed by this vulnerability?
The type of information that could be disclosed if an attacker successfully exploited this vulnerability is uninitialized memory.
Microsoft Office: Micro
GHSA
GHSA-643h-w2r6-x59x: An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory, aka "Microsoft Excel Information
ghsa_unreviewed·2022-05-13·CVSS 5.5
CVE-2018-8598 [MEDIUM] GHSA-643h-w2r6-x59x: An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory, aka "Microsoft Excel Information
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.
GHSA
GHSA-jq29-w2g2-mrm3: An information disclosure vulnerability exists when Microsoft Excel software reads out of bound memory due to an uninitialized variable, which could d
ghsa_unreviewed·2022-05-13·CVSS 4.7
CVE-2018-8627 [MEDIUM] CWE-908 GHSA-jq29-w2g2-mrm3: An information disclosure vulnerability exists when Microsoft Excel software reads out of bound memory due to an uninitialized variable, which could d
An information disclosure vulnerability exists when Microsoft Excel software reads out of bound memory due to an uninitialized variable, which could disclose the contents of memory, aka "Microsoft Excel Information Disclosure Vulnerability." This affects Microsoft Office, Office 365 ProPlus, Microsoft Excel, Microsoft Excel Viewer, Excel. This CVE ID is unique from CVE-2018-8598.
VulnCheck
Microsoft Excel Use of Uninitialized Resource
vulncheck·2018·CVSS 4.7
CVE-2018-8627 [MEDIUM] Microsoft Excel Use of Uninitialized Resource
Microsoft Excel Use of Uninitialized Resource
An information disclosure vulnerability exists when Microsoft Excel software reads out of bound memory due to an uninitialized variable, which could disclose the contents of memory, aka "Microsoft Excel Information Disclosure Vulnerability." This affects Microsoft Office, Office 365 ProPlus, Microsoft Excel, Microsoft Excel Viewer, Excel. This CVE ID is unique from CVE-2018-8598.
Affected: Microsoft Excel
Required Action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Exploitation References: https://www.tenable.com/blog/daisy-chaining-how-vulnerabilities-can-be-greater-than-the-sum-of-their-parts
VulnCheck
Microsoft Excel Information Disclosure Vulnerability
vulncheck·2018·CVSS 4.7
CVE-2018-8598 [MEDIUM] Microsoft Excel Information Disclosure Vulnerability
Microsoft Excel Information Disclosure Vulnerability
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.
Affected: Microsoft Excel
Required Action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Exploitation References: https://www.tenable.com/blog/daisy-chaining-how-vulnerabilities-can-be-greater-than-the-sum-of-their-parts
No detection rules found.
No public exploits indexed.
2018-12-12
Published
Exploited in the wild