How severe is CVE-2024-49026?

CVE-2024-49026 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-49026 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-49026?

CVE-2024-49026 primarily affects Microsoft 365 Apps. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-49026?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-49026 have an EU (EUVD) identifier?

Yes. CVE-2024-49026 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-43900.

When was CVE-2024-49026 published?

CVE-2024-49026 was published on 2024-11-12 and last updated on 2026-06-17.

CVE-2024-49026

CVE-2024-49026 is a high-severity vulnerability in Microsoft 365 Apps with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-77.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-43900
Weakness: CWE-77
Affected product: Microsoft 365 Apps
Published: 2024-11-12
Last modified: 2026-06-17

Description

Microsoft Excel Remote Code Execution Vulnerability

Frequently asked questions

What is CVE-2024-49026?: Microsoft Excel Remote Code Execution Vulnerability
How severe is CVE-2024-49026?: CVE-2024-49026 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-49026 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-49026?: CVE-2024-49026 primarily affects Microsoft 365 Apps. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-49026?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-49026 have an EU (EUVD) identifier?: Yes. CVE-2024-49026 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-43900.
When was CVE-2024-49026 published?: CVE-2024-49026 was published on 2024-11-12 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-49026

Affected products (5)

cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:*:*
cpe:2.3:a:microsoft:excel:2016:*:*:*:click-to-run:*:*:*
cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:-:*:*
cpe:2.3:a:microsoft:office_online_server:-:*:*:*:*:*:*:*

More vulnerabilities in Microsoft 365 Apps

CVE-2026-78509 — Critical (CVSS 9.8): Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
CVE-2024-21413 — Critical (CVSS 9.8): Microsoft Outlook Remote Code Execution Vulnerability
CVE-2023-23397 — Critical (CVSS 9.8): Microsoft Outlook Elevation of Privilege Vulnerability
CVE-2020-0901 — Critical (CVSS 9.8): A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle…
CVE-2023-33150 — Critical (CVSS 9.6): Microsoft Office Security Feature Bypass Vulnerability
CVE-2026-70125 — High (CVSS 8.8): Microsoft Office Outlook Remote Code Execution Vulnerability

All CVEs affecting Microsoft 365 Apps →

Other CWE-77 (Command Injection) vulnerabilities

CVE-2026-105484 — Critical (CVSS 10.0): A security vulnerability has been detected in TOTOLINK X6000R 9.4.0cu.652_B20230116. The impacted element is the…
CVE-2026-105134 — Critical (CVSS 10.0): A flaw has been found in Ahsay AhsayCBS up to 10.3.2. This vulnerability affects unknown code of the file…
CVE-2026-102240 — Critical (CVSS 10.0): A vulnerability was found in Netcore NAP930 0.1.241010.141410. This affects the function eval of the file…
CVE-2026-101076 — Critical (CVSS 10.0): A vulnerability was detected in Netcore NR289-GE 1.4.5102. This affects the function system of the file…
CVE-2026-101075 — Critical (CVSS 10.0): A security vulnerability has been detected in Netcore NR289-GE 1.4.5102. The impacted element is the function system of…
CVE-2026-101072 — Critical (CVSS 10.0): A vulnerability was identified in Netcore NR289-GE 1.4.5102. This issue affects the function system of the file…

Browse all CWE-77 (Command Injection) vulnerabilities →