Security Digest · Vulnerability record · Known exploited

CVE-2022-48618: Apple Multiple Products Memory Corruption Vulnerability

Exploited in the wild (CISA KEV). The issue was addressed with improved checks.

CISA KEV · added 2024-01-31 CVSS 7.0 High EPSS 0.5% · p41

Should you act?

Exploited: patch now if you run it

CISA has confirmed exploitation in the wild. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

  • Yes, if you run Apple Multiple Products. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2024-01-31, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2024-02-21; treat that as the outer limit, not the target.
  • EPSS 0.5%, percentile 41: FIRST’s model estimates a 0.5% chance of exploitation activity in the next 30 days, higher than 41% of all scored CVEs (low). EPSS is a probability, not a verdict.
  • Needs local access needed. Lower urgency for most teams unless an attacker could already run code on the machine.

What it is

The issue was addressed with improved checks. This issue is fixed in macOS Ventura 13.1, watchOS 9.2, iOS 16.2 and iPadOS 16.2, tvOS 16.2. An attacker with arbitrary read and write capability may be able to bypass Pointer Authentication. Apple is aware of a report that this issue may have been exploited against versions of iOS released before iOS 15.7.1.

CISA’s summary

Apple iOS, iPadOS, macOS, tvOS, and watchOS contain a time-of-check/time-of-use (TOCTOU) memory corruption vulnerability that allows an attacker with read and write capabilities to bypass Pointer Authentication.

Weakness type: CWE-367.

Product: Apple Multiple Products · Assigned by: apple · Published: 2024-01-09

Affected and fixed versions

VendorProductAffected versions (per CVE record)
AppletvOSunspecified < 16.2
ApplemacOSunspecified < 13.1
AppleiOS and iPadOSunspecified < 16.2
ApplewatchOSunspecified < 9.2

Severity scores

Scored byCVSSScoreVector
CISA-ADP3.17 HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • Attack vector: local access needed
  • Attack complexity: high (needs special conditions)
  • Privileges required: low (any account)
  • User interaction: none
  • Scope: unchanged

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

  • CISA KEV: added 2024-01-31; federal due date 2024-02-21. Known ransomware use: Unknown.
  • CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
  • CISA SSVC assessment: exploitation active, automatable no, technical impact total.
  • FIRST EPSS (model of 2026-10-21): 0.49% probability of exploitation activity in the next 30 days; percentile 41.

Timeline

  • — CVE record published by apple
  • — Added to CISA’s Known Exploited Vulnerabilities catalog
  • — CISA remediation deadline for US federal agencies
  • — CVE record last updated

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.

Vendor and project advisories, patches

  1. Listed in CISA KEV notes (support.apple.com) support.apple.com
  2. Listed in CISA KEV notes (support.apple.com) support.apple.com
  3. Listed in CISA KEV notes (support.apple.com) support.apple.com
  4. Listed in CISA KEV notes (support.apple.com) support.apple.com

Vulnerability records

  1. CVE.org record CVE-2022-48618 cve.org
  2. NVD entry CVE-2022-48618 nvd.nist.gov

Government

  1. CISA Known Exploited Vulnerabilities catalog entry cisa.gov

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