How severe is CVE-2021-41353?

CVE-2021-41353 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-41353 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-41353?

CVE-2021-41353 primarily affects Microsoft Dynamics 365. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-41353?

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

When was CVE-2021-41353 published?

CVE-2021-41353 was published on 2021-10-13 and last updated on 2026-06-17.

CVE-2021-41353

CVE-2021-41353 is a medium-severity vulnerability in Microsoft Dynamics 365 with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Dynamics 365
Published: 2021-10-13
Last modified: 2026-06-17

Description

Microsoft Dynamics 365 (on-premises) Spoofing Vulnerability

Frequently asked questions

What is CVE-2021-41353?: Microsoft Dynamics 365 (on-premises) Spoofing Vulnerability
How severe is CVE-2021-41353?: CVE-2021-41353 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-41353 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-41353?: CVE-2021-41353 primarily affects Microsoft Dynamics 365. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-41353?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-41353 published?: CVE-2021-41353 was published on 2021-10-13 and last updated on 2026-06-17.

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-41353

Affected products (2)

cpe:2.3:a:microsoft:dynamics_365:9.0:*:*:*:on-premises:*:*:*
cpe:2.3:a:microsoft:dynamics_365:9.1:*:*:*:on-premises:*:*:*

More vulnerabilities in Microsoft Dynamics 365

CVE-2026-47647 — Critical (CVSS 9.9): Improper access control in Microsoft Dynamics 365 allows an authorized attacker to elevate privileges over a network.
CVE-2026-42898 — Critical (CVSS 9.9): Improper control of generation of code ('code injection') in Microsoft Dynamics 365 (on-premises) allows an authorized…
CVE-2026-32210 — Critical (CVSS 9.3): Server-side request forgery (ssrf) in Microsoft Dynamics 365 (Online) allows an unauthorized attacker to perform…
CVE-2026-42833 — Critical (CVSS 9.1): Improper control of generation of code ('code injection') in Microsoft Dynamics 365 (on-premises) allows an authorized…
CVE-2024-38182 — Critical (CVSS 9.0): Weak authentication in Microsoft Dynamics 365 allows an unauthenticated attacker to elevate privileges over a network.
CVE-2026-40371 — High (CVSS 8.8): Improper handling of insufficient permissions or privileges in Microsoft Dynamics 365 (on-premises) allows an…

All CVEs affecting Microsoft Dynamics 365 →