HIGHCVSS 7.8Actively exploited · CISA KEV since 2026-02-12Vulnerability

CVE-2026-20700

Apple iOS, macOS, tvOS, watchOS, and visionOS contain an improper restriction of operations within the bounds of a memory buffer vulnerability that could allow an attacker with memory write the capability to execute arbitrary code.

Properties

Euvd product
iOS and iPadOS, tvOS, visionOS, watchOS, macOS
Vulnerability name
Apple Multiple Buffer Overflow Vulnerability
First seen
2026-04-02T18:23:25+00:00
Cvss score
7.8
Epss score
0.01392
Last seen
2026-10-19T12:00:27+00:00
Due date
2026-03-05
Euvd assigner
apple
Retrieved at
2026-10-21T01:24:49+00:00
Exploited euvd since
2026-02-12T00:00:00+00:00
Src batch id
epss_history-20261020T103617Z-728ddd
Source url
https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
Date added
2026-02-12
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:L/UI:N/S:U/C:H/I:H/A:H
In Signal since
initial import (Sep 2026)
Euvd base score
7.8

Related Entities (11)

AFFECTS_PRODUCT (6)

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

MENTIONED_IN (2)

→[Campaign]Unnamed campaign (ID 69ba…)
→[Campaign]The Proliferation of DarkSword: iOS Exploit Chain Adopted by Multiple Threat Actors

DESCRIBES (1)

←[KEVEntry]Apple Multiple Buffer Overflow Vulnerability

HAS_WEAKNESS (1)

→[Weakness]Improper Restriction of Operations within the Bounds of a Memory Buffer

INVOLVES (1)

←[Signal]kev_added · 2026-02-12

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CVE-2026-20700 (CVSS 7.8) — Ninja Signal Threat Intelligence | Ninja Signal