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Type Vulnerability

Apple · Auth bypass

Apple Multiple Products Authentication Bypass Vulnerability

2 sourcesCVE-2024-27834

At a glance

High
Suggested 24-hour window, counted from the last update
ActiveConfirmed in-the-wild exploitation
Evidence-weighted, not popularity
Signal

Actively exploited in the wild — prioritise confirming exposure.

Why High

High rather than Critical: exposure is scored at a default because we cannot see your systems or suppliers. If you run or depend on Apple Safari, treat it as Critical.

Briefing

There is no written leader briefing for this story yet. These questions come from the facts we hold.

Questions to ask IT

  • Do we run Apple Safari, Webkitgtk and Wpewebkit Wpe Webkit, and which versions?
  • Is any of it reachable from the internet?
  • Have we checked whether it has already been used against us?
  • If it is still not patched, what mitigation is in place, and what is holding the fix up?

Next steps

  1. Confirm exposure and remediation status for affected products

Summary

  • CISA has added one new vulnerability to its known-exploited catalogue, based on evidence of active exploitation. CVE-2024-27834 Apple Multiple Products Improper Authentication Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise.
  • CVE-2024-27834 is confirmed as exploited in the wild (US known-exploited catalogue)
  • Authoritative catalogues report active exploitation of this vulnerability.

Products and services involved

All 13 reports in this story

Same event, different frames

Distinct often headline the same incident differently.

Pulse

Last change 3d ago · Recheck overdue since 5 Nov 2026, 23:04 UK time

  1. Story5 Nov 2026, 00:32 UK time · 4d ago

    Linked reporting from CISA (official authority).

    Read source (CISA Known Exploited Vulnerabilities)
  2. Update5 Nov 2026, 17:04 UK time · 3d ago

    Estimated attack-likelihood score was cleared.

  3. Story5 Nov 2026, 17:04 UK time · 3d ago

    Linked reporting from CISA Cybersecurity Advisories (official authority).

    Read source (CISA Cybersecurity Advisories)

3 entries so far. The timeline chart appears once this story has more history.

Sources

How we know

Statements extracted from sources. Higher confidence means stronger corroboration.

  • ClaimedHeadline60% confidence

    Apple Multiple Products Improper Authentication Vulnerability

  • ProbableSummary fact75% confidence

    CISA has added one new vulnerability to its known-exploited catalogue, based on evidence of active exploitation. CVE-2024-27834 Apple Multiple Products Improper Authentication Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise.

  • ConfirmedCVE identifier95% confidence

    Event involves CVE-2024-27834

  • ConfirmedKnown-exploited catalogue98% confidence

    CVE-2024-27834 is confirmed as exploited in the wild (US known-exploited catalogue)