Microsoft Excel 365 Apps for Enterprise/2019/LTSC 2021 double free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability has been found in Microsoft Excel 365 Apps for Enterprise/2019/LTSC 2021 and classified as critical. The affected element is an unknown function. This manipulation causes an unknown weakness. This vulnerability is registered as CVE-2023-33161. Remote exploitation of the attack is possible. No exploit is available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability has been found in Microsoft Excel 365 Apps for Enterprise/2019/LTSC 2021 (Spreadsheet Software) and classified as critical. The CWE definition for the vulnerability is CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 07/11/2023 as confirmed security guidance (Website). It is possible to read the advisory at portal.msrc.microsoft.com. This vulnerability is known as CVE-2023-33161. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 7.8
Vendor Vector (Microsoft): 🔍

CNA Base Score: 7.8
CNA Vector (Microsoft): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Double free
CWE: CWE-415 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

05/17/2023 🔍
07/11/2023 +55 days 🔍
07/11/2023 +0 days 🔍
07/11/2023 +0 days 🔍
05/19/2026 +1043 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: portal.msrc.microsoft.com
Status: Confirmed

CVE: CVE-2023-33161 (🔍)
GCVE (CVE): GCVE-0-2023-33161
GCVE (VulDB): GCVE-100-233635

Entryinfo

Created: 07/11/2023 20:00
Updated: 05/19/2026 23:44
Changes: 07/11/2023 20:00 (30), 07/11/2023 20:03 (23), 07/28/2023 18:04 (1), 07/28/2023 18:12 (11), 05/19/2026 23:44 (16)
Complete: 🔍
Cache ID: 216::103

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