How severe is CVE-2025-21177?

CVE-2025-21177 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2025-21177 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-21177?

CVE-2025-21177 affects Microsoft Dynamics 365 Sales. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-21177?

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-2025-21177 have an EU (EUVD) identifier?

Yes. CVE-2025-21177 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-2257.

When was CVE-2025-21177 published?

CVE-2025-21177 was published on 2025-02-06 and last updated on 2026-06-17.

CVE-2025-21177

CVE-2025-21177 is a high-severity vulnerability in Microsoft Dynamics 365 Sales with a CVSS 3.x base score of 8.7. 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-918.

Key facts

Severity: High (CVSS 3.x base score 8.7)
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-2257
Weakness: CWE-918
Affected product: Microsoft Dynamics 365 Sales
Published: 2025-02-06
Last modified: 2026-06-17

Description

Server-side request forgery (ssrf) in Microsoft Dynamics 365 Sales allows an authorized attacker to elevate privileges over a network.

Frequently asked questions

What is CVE-2025-21177?: Server-side request forgery (ssrf) in Microsoft Dynamics 365 Sales allows an authorized attacker to elevate privileges over a network.
How severe is CVE-2025-21177?: CVE-2025-21177 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2025-21177 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-21177?: CVE-2025-21177 affects Microsoft Dynamics 365 Sales. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-21177?: 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-2025-21177 have an EU (EUVD) identifier?: Yes. CVE-2025-21177 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-2257.
When was CVE-2025-21177 published?: CVE-2025-21177 was published on 2025-02-06 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21177

Affected products (1)

cpe:2.3:a:microsoft:dynamics_365_sales:-:*:*:*:*:*:*:*

More vulnerabilities in Microsoft Dynamics 365 Sales

CVE-2024-49053 — High (CVSS 7.6): Microsoft Dynamics 365 Sales Spoofing Vulnerability
CVE-2022-21891 — High (CVSS 7.6): Microsoft Dynamics 365 (on-premises) Spoofing Vulnerability

All CVEs affecting Microsoft Dynamics 365 Sales →

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