CVE-2026-42898

CRITICAL
Published May 12, 2026 Modified May 14, 2026 CWE-94

Description

Improper control of generation of code ('code injection') in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to execute code over a network.

CVSS v3.1 Score

9.9
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0012
Probability of exploitation
0.30%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-94 CWE-94

Affected Products

Vendor Product
microsoft dynamics_365

References

Frequently Asked Questions

What is CVE-2026-42898? +
Improper control of generation of code ('code injection') in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to execute code over a network. It has a CVSS v3.1 base score of 9.9 (CRITICAL).
How severe is CVE-2026-42898? +
CVE-2026-42898 has a CVSS v3.1 score of 9.9 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0012, placing it in the 0th percentile for exploitation probability.
What products are affected by CVE-2026-42898? +
CVE-2026-42898 affects products from microsoft, specifically: dynamics_365. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2026-42898? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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