Microsoft Excel 16.83 on macOS Library signature verification

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Microsoft Excel 16.83 on macOS. Affected is an unknown function of the component Library Handler. Such manipulation leads to signature verification. This vulnerability is traded as CVE-2024-43106. An attack has to be approached locally. There is no exploit available.

Detailsinfo

A vulnerability was found in Microsoft Excel 16.83 on macOS and classified as problematic. Affected by this issue is an unknown part of the component Library Handler. The manipulation with an unknown input leads to a signature verification vulnerability. Using CWE to declare the problem leads to CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A library injection vulnerability exists in Microsoft Excel 16.83 for macOS. A specially crafted library can leverage Excel's access privileges, leading to a permission bypass. A malicious application could inject a library and start the program to trigger this vulnerability and then make use of the vulnerable application's permissions.

The advisory is available at talosintelligence.com. This vulnerability is handled as CVE-2024-43106 since 08/05/2024. The exploitation is known to be easy. Local access is required to approach this attack. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/23/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.2
VulDB Meta Temp Score: 7.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.1
NVD Vector: 🔍

CNA Base Score: 7.1
CNA Vector (talos): 🔍

CVSSv2info

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

Exploitinginfo

Class: Signature verification
CWE: CWE-347 / CWE-345
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/05/2024 🔍
12/18/2024 +135 days 🔍
12/18/2024 +0 days 🔍
08/23/2025 +248 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: TALOS-2024-1976
Status: Confirmed

CVE: CVE-2024-43106 (🔍)
GCVE (CVE): GCVE-0-2024-43106
GCVE (VulDB): GCVE-100-288914

Entryinfo

Created: 12/18/2024 23:54
Updated: 08/23/2025 03:00
Changes: 12/18/2024 23:54 (64), 12/19/2024 18:21 (1), 08/23/2025 03:00 (11)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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