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CVE-2026-14536 Devolutions CVE debrief

CVE-2026-14536 is an authentication bypass vulnerability in Devolutions Server 2026.2.9.0 due to improper enforcement of a mandatory multi-factor authentication policy. An attacker with valid user credentials can bypass the MFA Required policy without completing multi-factor authentication when the server encounters an invalid default MFA value. This issue arises from the improper enforcement of a mandatory multi-factor authentication policy, potentially impacting authentication mechanisms.

Vendor
Devolutions
Product
Server
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-06
Original CVE updated
2026-07-09
Advisory published
2026-07-06
Advisory updated
2026-07-09

Who should care

Administrators and security teams responsible for Devolutions Server 2026.2.9.0 should prioritize patching to prevent potential authentication bypass attacks. Ensuring that multi-factor authentication policies are enforced correctly and monitoring for suspicious authentication attempts are crucial steps in mitigating this vulnerability.

Technical summary

The vulnerability occurs in Devolutions Server 2026.2.9.0 when the server encounters an invalid default MFA value, allowing an attacker with valid user credentials to bypass the MFA Required policy. This issue arises from the improper enforcement of a mandatory multi-factor authentication policy, which could lead to authentication bypass attacks if not properly addressed. Affected product deployments should be identified in managed environments and assigned an owner for follow-up. The issue impacts authentication mechanisms and requires verification of MFA policies for all users. Monitoring for suspicious authentication attempts is crucial. Compensating controls should be reviewed for exposed systems while remediation is scheduled and verified.

Defensive priority

High priority due to potential for authentication bypass attacks

Recommended defensive actions

  • Apply the vendor patch for Devolutions Server 2026.2.9.0
  • Verify and enforce MFA policies for all users
  • Monitor for suspicious authentication attempts
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-07-06T20:16:29.883Z and was last modified on 2026-07-07T13:57:07.790Z. The NVD entry is currently Awaiting Analysis. This information is based on the provided source corpus. Further verification is recommended to confirm affected scope and severity.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-14536 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-14536

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-14536 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-14536

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.