CVE-2019-1331
published 2019-10-10CVE-2019-1331: A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka 'Microsoft Excel…
PriorityP357high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
ITW
Exploited in the wild
EPSS
17.88%
96.8th percentile
A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka 'Microsoft Excel Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2019-1327.
Affected
44 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | excel | — | — |
| microsoft | excel | — | — |
| microsoft | excel | — | — |
| microsoft | excel | — | — |
| microsoft | excel_services_on_microsoft_sharepoint_server_2010_service_pack_2 | — | — |
| microsoft | microsoft_excel | — | — |
| microsoft | microsoft_excel | — | — |
| microsoft | microsoft_excel | — | — |
| microsoft | microsoft_excel | — | — |
| microsoft | microsoft_excel | — | — |
| microsoft | microsoft_excel | — | — |
| microsoft | microsoft_excel | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_sharepoint_enterprise_server | — | — |
| microsoft | office | — | — |
Detection & IOCsextracted from sources · hover to see the quote
- →Attack vector requires a user to open a specially crafted Microsoft Excel file; the Preview Pane is NOT an attack vector — file must be actively opened. ↗
- →In email-based delivery, the attacker sends a specially crafted Excel file as an attachment and socially engineers the recipient into opening it. ↗
- →In web-based delivery, the attacker hosts or compromises a site serving a specially crafted Excel file; no drive-by — user must click a link and then open the file. ↗
- →The Preview Pane is confirmed NOT an attack vector; detections should focus on Excel process launch/open events, not preview handlers. ↗
- →Successful exploitation runs arbitrary code in the context of the current user via Microsoft Excel; monitor for anomalous child processes spawned by EXCEL.EXE. ↗
- ·Exploit status at time of advisory: not publicly disclosed and not exploited in the wild; exploitation assessed as 'Less Likely' for both latest and older software releases. ↗
- ·This CVE is distinct from CVE-2019-1327, which is a separate Microsoft Excel RCE; ensure detections and patch tracking do not conflate the two. ↗
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.09.3CRITICALAV:N/AC:M/Au:N/C:C/I:C/A:C
vendor_msrc8.8HIGH
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Microsoft
Microsoft Excel Remote Code Execution Vulnerability
vendor_msrc·2019-10-08·CVSS 8.8
CVE-2019-1331 [HIGH] Microsoft Excel Remote Code Execution Vulnerability
Microsoft Excel Remote Code Execution Vulnerability
Description: A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
Exploitation of the vulnerability requires that a user open a specially crafted file wit
GHSA
GHSA-c65f-9462-c9m3: A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka 'Microsoft
ghsa_unreviewed·2022-05-24·CVSS 8.8
CVE-2019-1327 [HIGH] GHSA-c65f-9462-c9m3: A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka 'Microsoft
A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka 'Microsoft Excel Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2019-1331.
GHSA
GHSA-6g5f-f6jh-vxmv: A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka 'Microsoft
ghsa_unreviewed·2022-05-24·CVSS 8.8
CVE-2019-1331 [HIGH] GHSA-6g5f-f6jh-vxmv: A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka 'Microsoft
A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka 'Microsoft Excel Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2019-1327.
No detection rules found.
No public exploits indexed.
Talos
Microsoft Patch Tuesday — Oct. 2019: Vulnerability disclosures and Snort coverage
blogs_talos·2019-10-08·CVSS 6.4
[MEDIUM] Microsoft Patch Tuesday — Oct. 2019: Vulnerability disclosures and Snort coverage
By Jon Munshaw.
Microsoft released its monthly security update today, disclosing a variety of vulnerabilities in several of its products. The latest Patch Tuesday discloses 60 vulnerabilities, nine of which are considered "critical," with the rest being deemed "important."
This month’s security update covers security issues in a variety of Microsoft services and software, the Chakra Scripting Engine, the Windows operating system and the SharePoint software.
Talos also released a new set of SNORTⓇ rules that provide coverage for some of these vulnerabilities. For more, check out the Snort blog post here.
### Critical vulnerabilities Microsoft disclosed nine critical vulnerabilities this month, eight of which we will highlight below.
CVE-2019-1333 is a client-side remote execution vulne
Talos
Microsoft Patch Tuesday — Oct. 2019: Vulnerability disclosures and Snort coverage
blogs_talos·2019-10-08·CVSS 6.4
[MEDIUM] Microsoft Patch Tuesday — Oct. 2019: Vulnerability disclosures and Snort coverage
## Microsoft Patch Tuesday — Oct. 2019: Vulnerability disclosures and Snort coverage
By Jon Munshaw.
Microsoft released its monthly security update today, disclosing a variety of vulnerabilities in several of its products. The latest Patch Tuesday discloses 60 vulnerabilities, nine of which are considered "critical," with the rest being deemed "important."
This month’s security update covers security issues in a variety of Microsoft services and software, the Chakra Scripting Engine, the Windows operating system and the SharePoint software.
Talos also released a new set of SNORTⓇ rules that provide coverage for some of these vulnerabilities. For more, check out the Snort blog post here .
## Critical vulnerabilities Microsoft disclosed nine critical vulnerabilities this month, eight of
2019-10-10
Published
Exploited in the wild