Connect your agent
AdvisoriesCriticalCheck your lockfilePluginHow it worksPricing Connect your agent

CVE record · CVE-2024-27834

Improper authentication in Apple Safari and others

CVSS 5.5 MediumCriticalIn CISA KEVEPSS 0.015 · 74th percentile

Critical, because:

  • In CISA’s KEV catalogue since 4 Nov 2026: it is known to be exploited.

How we decide what’s critical

Published by the CVE Program (CNA: apple) at 13 May 2024, 23:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Apple Safari
  • affected before 17.5 custom
Apple iOS and iPadOS
  • affected before 16.7.8 custom
  • affected before 17.5 custom
Apple macOS
  • affected before 14.5 custom
Apple tvOS
  • affected before 17.5 custom
Apple watchOS
  • affected before 10.5 custom
Identifiers
CVE-2024-27834
CNA
apple
Weakness (CWE)
CWE-287
Tags
Published
13 May 2024
Updated
5 Nov 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
5.5 Medium 3.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N ADP (CISA-ADP)
  • CISA KEV Listed since 4 Nov 2026: known to be exploited.
  • EPSS 0.015, the 74th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 13 May 2024, 23:00 UTC Confirmed by the CVE List
  2. 14 May 2024, 15:13 UTC Confirmed by NVD

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.