CVE-2021-30937(apple / ipados)

LOWCVSS 7.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A memory corruption vulnerability was addressed with improved locking. This issue is fixed in macOS Big Sur 11.6.2, tvOS 15.2, macOS Monterey 12.1, Security Update 2021-008 Catalina, iOS 15.2 and iPadOS 15.2, watchOS 8.3. A malicious application may be able to execute arbitrary code with kernel privileges.

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-787

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • ipados
  • iphone_os
  • mac_os_x
  • macos

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • 1 total mentions across 1 day

Affected systems

Vendors
Products
ipadosiphone_osmac_os_xmacostvoswatchos

1 version affected across 6 products

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-09-20: 109-20
Full discourse1 post
  • Alfie@alfiecg_dev

    @WHW_0x455 street_race: CVE-2020-9859 (AKA tachy0n or lightspeed) busy_schedule: CVE-2020-27905 & CVE-2020-9964 (AKA oob_events) dangling_join: CVE-2021-30937 (AKA multicast_bytecopy) madvm: CVE-2023-41974 (AKA kfd landa)

    1101331.2K
    8.7K followersView on X
CPE platform detail15 entries

15 of 15 entries

PartVendorProductVersionTarget SWTarget HW
OSappleipados---
OSappleiphone_os---
OSapplemac_os_x---
OSapplemac_os_x10.15.7--
OSapplemac_os_x10.15.7--
OSapplemac_os_x10.15.7--
OSapplemac_os_x10.15.7--
OSapplemac_os_x10.15.7--
OSapplemac_os_x10.15.7--
OSapplemac_os_x10.15.7--
OSapplemac_os_x10.15.7--
OSapplemac_os_x10.15.7--
OSapplemacos---
OSappletvos---
OSapplewatchos---

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