HIGHCVSS 7.8Actively exploited · CISA KEV since 2026-03-05Vulnerability

CVE-2021-30952

Apple tvOS, macOS, Safari, iPadOS and watchOS contain an integer overflow or wraparound vulnerability due to the processing of maliciously crafted web content that may lead to arbitrary code execution.

Properties

Euvd product
iOS and iPadOS, macOS, watchOS
Vulnerability name
Apple Multiple Products Integer Overflow or Wraparound Vulnerability
First seen
2026-03-06T05:01:17+00:00
Cvss score
7.8
Epss score
0.06964
Last seen
2026-10-19T12:00:27+00:00
Due date
2026-03-26
Euvd assigner
apple
Retrieved at
2026-10-21T01:24:47+00:00
Exploited euvd since
2026-03-05T00:00:00+00:00
Src batch id
epss_history-20261020T103617Z-728ddd
Source url
https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
Date added
2026-03-05
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
8.8

Related Entities (18)

AFFECTS_PRODUCT (12)

→[Product]cpe:2.3:a:wpewebkit:wpe_webkit:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:webkitgtk:webkitgtk:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

MENTIONED_IN (3)

→[Campaign]Coruna: The Mysterious Journey of a Powerful iOS Exploit Kit
→[Campaign]March 2026 CVE Landscape: 31 High-Impact Vulnerabilities Identified, Interlock Ransomware Group Exploits Cisco FMC Zero-Day
→[Campaign]Unnamed campaign (ID 69a7…)

DESCRIBES (1)

←[KEVEntry]Apple Multiple Products Integer Overflow or Wraparound Vulnerability

HAS_WEAKNESS (1)

→[Weakness]Integer Overflow or Wraparound

INVOLVES (1)

←[Signal]kev_added · 2026-03-05

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CVE-2021-30952 (CVSS 7.8) — Ninja Signal Threat Intelligence | Ninja Signal