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Response snapshot Oct 28, 2026, 08:21 UTC

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Microsoft Authenticator vulnerability let rogue Android apps steal work account access

If you use Microsoft Authenticator on Android, update it. Researchers at Enclave found a flaw that let any app on your phone quietly take over your work account. The app didn’t need permissions, and you didn’t need to tap anything.

At a glance

Exploited
Not known
Severity
Not scored yet
Chance of exploitation
Not estimated
Sources
1 source

What to do

Check the vendor advisory linked from the article for affected versions and fixes.

Read Help Net Security: Microsoft Authenticator vulnerability let rogue Android apps steal work account access (opens a new tab)

Related technology

Sources

  1. Reporting

    Help Net Security: Microsoft Authenticator vulnerability let rogue Android apps steal work account access (opens a new tab)

    The article reports this vulnerability. It is reporting, not independently primary-confirmed or locally reviewed.

    Published Checked

  2. Reporting

    Help Net Security syndication feed (opens a new tab)

    The RSS/Atom/RDF entry supplied this exact link and any available title, date, and excerpt.

    Published Date not suppliedChecked

Cite this record

For factual claims, cite the primary sources above; cite KEVWire for its compilation, dates, and classifications.

APA

KEVWire. (2026, October 27). Microsoft Authenticator vulnerability let rogue Android apps steal work account access. https://kevwire.com/record/helpnetsecurity-microsoft-authenticator-vulnerability-patchedcve-2026-80097-2d9875dc002a

MLA

"Microsoft Authenticator vulnerability let rogue Android apps steal work account access." KEVWire, 27 Oct. 2026, kevwire.com/record/helpnetsecurity-microsoft-authenticator-vulnerability-patchedcve-2026-80097-2d9875dc002a.

Chicago

KEVWire. "Microsoft Authenticator vulnerability let rogue Android apps steal work account access." Last modified October 27, 2026. https://kevwire.com/record/helpnetsecurity-microsoft-authenticator-vulnerability-patchedcve-2026-80097-2d9875dc002a.

Evidence summary (plain text)

Microsoft Authenticator vulnerability let rogue Android apps steal work account access (Oct 27, 2026).
If you use Microsoft Authenticator on Android, update it. Researchers at Enclave found a flaw that let any app on your phone quietly take over your work account. The app didn’t need permissions, and you didn’t need to tap anything.
Sources:
Help Net Security: Microsoft Authenticator vulnerability let rogue Android apps steal work account access: https://www.helpnetsecurity.com/2026/10/27/microsoft-authenticator-vulnerability-patchedcve-2026-80097/
Help Net Security syndication feed: https://www.helpnetsecurity.com/feed/
Record ID: helpnetsecurity-microsoft-authenticator-vulnerability-patchedcve-2026-80097-2d9875dc002a.
Record origin: Ingested record.
AI evidence: Not assessed.
Known exploitation: Not assessed.
Zero-day status: Not assessed. KEV membership alone does not establish zero-day status.
About this data

This record was ingested from a data source. Retrieved: Oct 27, 2026, 12:55 UTC. Ingestion is not an independent editorial investigation.

Syndicated reporting, unreviewed by KEVWire and not independently primary-confirmed. Consult the exact article and any primary disclosure it links.

A CISA KEV listing documents known exploitation, not necessarily a zero-day; absence from the catalog does not prove a vulnerability has never been exploited.

Technology tags indicate possible relevance, not verified exposure. Confirm the affected product, version, and configuration against your own inventory; KEVWire does not scan your systems.

A personal reading checklist on this device, not verified remediation.

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