HIGHCVSS v3.1 7.8Actively exploited · CISA KEV since 2021-11-03Vulnerability

CVE-2021-30807

Apple iOS, iPadOS, macOS, and watchOS IOMobileFrameBuffer contain a memory corruption vulnerability which may allow an application to execute code with kernel privileges.

Properties

Euvd product
macOS
Vulnerability name
Apple Multiple Products Memory Corruption Vulnerability
First seen
2025-10-21T23:25:28+00:00
Cvss score
7.8
Epss score
0.28839
Last seen
2026-10-19T12:00:27+00:00
Due date
2021-11-17
Euvd assigner
apple
Retrieved at
2026-10-21T01:24:47+00:00
Exploited euvd since
2021-11-03T00:00:00+00:00
Src batch id
epss_history-20261020T103617Z-728ddd
Source url
https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
Date added
2021-11-03
Score
7.8
Euvd base score version
3.1
Fetched at
2026-10-20T10:36:20+00:00
Euvd vendor
Apple
Cvss vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
In Signal since
initial import (Sep 2026)
Euvd base score
7.8

Related Entities (7)

AFFECTS_PRODUCT (4)

→[Product]cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*

DESCRIBES (1)

←[KEVEntry]Apple Multiple Products Memory Corruption Vulnerability

HAS_WEAKNESS (1)

→[Weakness]Out-of-bounds Write

INVOLVES (1)

←[Signal]kev_added · 2021-11-03

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CVE-2021-30807 (CVSS v3.1 7.8) — Ninja Signal Threat Intelligence | Ninja Signal