CriticalCVECISA — Known Exploited Vulnerabilities· 2 Sept 2025

CVE-2025-55177 — Meta Platforms WhatsApp Incorrect Authorization Vulnerability

Severity: Critical · Kind: Vulnerability

What it is

AI offline placeholder summary for: Title: CVE-2025-55177 — Meta Platforms WhatsApp Incorrect Authorization Vulnerab.

Who this affects

AI summarisation is currently disabled — see the source link for the full upstream advisory.

What to do

Re-run summarisation from /admin/threats once ANTHROPIC_API_KEY is configured.

From the source

Meta Platforms WhatsApp. Meta Platforms WhatsApp contains an incorrect authorization vulnerability due to an incomplete authorization of linked device synchronization messages. This vulnerability could allow an unrelated user to trigger processing of content from an arbitrary URL on a target’s device. Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Vulnerability facts

CVE: CVE-2025-55177
On CISA KEV since: 2025-09-02
Ransomware use: Unknown

Read the original advisory →← All threat intel

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Plain-English summaries are AI-generated and reviewed for tone, not technical accuracy. For incident response, always rely on the original source linked above.