CVE-2021-41527Public exploitNetwork attack vector

Authenticated 2FA bypass via client-side state

Published Feb 7, 2025 · Updated Mar 13, 2025

Authentication bypass in Flexera Cloud Migration and Modernization before saas-2021-12-29 allows remote authenticated users to bypass 2FA. The RISC portal trusts client-side access-control values returned to the browser, allowing an intercepted response to make incomplete 2FA enrollment appear authorized. The flaw is reachable only while the account's 2FA setup remains incomplete and grants platform access without completion of the second factor.

CVSS severity2.3
Low
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Authentication bypass in Flexera Cloud Migration and Modernization before saas-2021-12-29 allows remote authenticated users to bypass 2FA. The RISC portal trusts client-side access-control values returned to the browser, allowing an intercepted response to make incomplete 2FA enrollment appear authorized. The flaw is reachable only while the account's 2FA setup remains incomplete and grants platform access without completion of the second factor.

The record

CVE
CVE-2021-41527
Published
Feb 7, 2025
Updated
Mar 13, 2025
Vendor
Revenera
Product
Cloud Migration and Modernization
Classifications
CWE-94, CAPEC-115, T1556.006
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 7, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <saas-2021-12-29

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Revenera · Cloud Migration and Modernizationversion=0 <saas-2021-12-29

Published CVSS scores

2.3FlexeraCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CAPEC-115Authentication Bypass
T1556.006Multi-Factor Authentication

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo