CVE Tools
Track your stack

CVE-2023-43000

Exploited in the wild. In CISA KEV since 2026‑03‑05. Fixed versions are out.

CVSS 3.18.8HighEPSS percentile91st4.0% chance in 30 daysCISA KEVListedsince 2026-03-05, due 2026-03-26
Public exploit: 1 sourceFix4 products3 fixed builds listed below

Published Updated Sources: CVE.org, NVD

NVD CVE.org

What to do

Find your product and version, then upgrade to the build on the right.

  • Apple macOSAffected: ≥ unspecified, < 13.5Upgrade to: 13.5Stated by: CVE record
  • Apple iOS and iPadOSAffected: ≥ unspecified, < 16.6Upgrade to: 16.6Stated by: CVE record
  • Apple SafariAffected: ≥ unspecified, < 16.6Upgrade to: 16.6Stated by: CVE record
  • Apple IpadosAffected: < 15.8.7Upgrade to: 15.8.7Stated by: NVD

Versions as the sources state them. Full version matrix after sign-in

Check it yourselfA free OpenVAS check exists for this CVE. Run it against your hosts.Is your organisation exposed?Request an assessment to establish which checks fit your systems.

Coverage timeline

0 publishers

  1. Added to CISA KEV catalog

    ·CISA KEV

Sourced from public security reporting — each date is when it was published, not when it happened. 1 further article named this CVE in wider roundups without reporting it as a distinct event.

What it is

From the CVE record

A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Ventura 13.5, iOS 16.6 and iPadOS 16.6, Safari 16.6, iOS 15.8.7 and iPadOS 15.8.7. Processing maliciously crafted web content may lead to memory corruption.

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS91st
Public exploit
CISA KEV
CISA KEV

Listed as exploited in the wild since 2026-03-05.

US federal agencies must remediate by 2026-03-26.

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Public exploits

1 source with a proof of concept or module.

Exploit links, PoCs and Metasploit modules after sign-in
EPSS

4.0% chance of exploitation activity in the next 30 days, which ranks it in the 91st percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

A public exploit existed 0 days before the patch.

  1. Patch availablerecord updated
  2. OpenVAS check added
  3. Public exploit / PoCsource: otherpatch available, record updated
  4. Added to CISA KEV
  5. Publishedweakness classified, att&ck mapped

Affected products

And 3 more affected products. See all after sign-in

Technical detail

CVSS 3.1 vector

Open in the CVSS calculator

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Scored 8.8 by NVD.

How it is reached

  • Attack Vector NetworkExploitable remotely over the network without any special conditions
  • Attack Complexity LowNo special conditions — the attack can be reliably reproduced
  • Privileges Required NoneNo authentication required — anyone can exploit this
  • User Interaction RequiredA user must click a link, open a file, or perform some action

Scope

  • Scope UnchangedImpact is limited to the vulnerable component itself

Impact if exploited

  • Confidentiality HighTotal information disclosure — all data in the component is compromised
  • Integrity HighTotal loss of integrity — attacker can modify any data in the component
  • Availability HighTotal denial of service — the component is completely unavailable

Weaknesses

ATT&CK techniques

Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.

Sources

References in the record

And 3 more references. See all after sign-in

In the news

Watch the software you run.

My Stack ranks new CVEs for your products by real-world exploitation, so the next exploited one reaches you without reading every advisory.

We'll flag the next CVE, public exploit or patch for macOS, not every advisory. This one: actively exploited.