How severe is CVE-2025-49756?

CVE-2025-49756 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-49756 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-49756?

CVE-2025-49756 primarily affects Microsoft 365 Apps. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-49756?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-49756 have an EU (EUVD) identifier?

Yes. CVE-2025-49756 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-20617.

When was CVE-2025-49756 published?

CVE-2025-49756 was published on 2025-07-08 and last updated on 2026-06-17.

CVE-2025-49756

CVE-2025-49756 is a low-severity vulnerability in Microsoft 365 Apps with a CVSS 3.x base score of 3.3. 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-327.

Key facts

Severity: Low (CVSS 3.x base score 3.3)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-20617
Weakness: CWE-327
Affected product: Microsoft 365 Apps
Published: 2025-07-08
Last modified: 2026-06-17

Description

Use of a broken or risky cryptographic algorithm in Office Developer Platform allows an authorized attacker to bypass a security feature locally.

Frequently asked questions

What is CVE-2025-49756?: Use of a broken or risky cryptographic algorithm in Office Developer Platform allows an authorized attacker to bypass a security feature locally.
How severe is CVE-2025-49756?: CVE-2025-49756 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-49756 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-49756?: CVE-2025-49756 primarily affects Microsoft 365 Apps. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-49756?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-49756 have an EU (EUVD) identifier?: Yes. CVE-2025-49756 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-20617.
When was CVE-2025-49756 published?: CVE-2025-49756 was published on 2025-07-08 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49756

Affected products (2)

cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:*
cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:*

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