CVE-2020-27930

mediumpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.220 · 98 %ileexploit · PoCEURUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV · 1 exploit · PoC

Likely / severe?

22.0% (98th) EPSS

CVSS 6.8 · medium

Is it mine?

24 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

added 2021-11-03remediate by 2022-05-03

required action Apply updates per vendor instructions.

EPSS · scored 2026-10-27

Apple Multiple Products Memory Corruption Vulnerability

A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 12.4.9, watchOS 6.2.9, Security Update 2020-006 High Sierra, Security Update 2020-006 Mojave, iOS 14.2 and iPadOS 14.2, watchOS 5.3.9, macOS Catalina 10.15.7 Supplemental Update, macOS Catalina 10.15.7 Update. Processing a maliciously crafted font may lead to arbitrary code execution.

cvss

Technical severity, 0–10. One row per scoring source.

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.8–7.8

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.17.8highAV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondaryexploitability 1.8 · impact 5.9

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-787US

exploits (1)

Public proof-of-concept and weaponised exploit code.

FunPhishing/Apple-Safari-Remote-Code-Execution-CVE-2020-27930Apple Safari Remote Code ExecutionPoC · poc_in_github

affected products (24)

Products and version ranges known to be affected.

Apple iOS and iPadOSunspecified → 14.2enisa_euvdEU
Apple macOSunspecified → 10.15enisa_euvdEU
Apple macOSunspecified → 11.0enisa_euvdEU
Apple macOSunspecified → 12.4enisa_euvdEU
Apple macOSunspecified → 2020enisa_euvdEU
Apple macOSunspecified → 5.3enisa_euvdEU
Apple macOSunspecified → 6.2enisa_euvdEU
Apple watchOSunspecified → 7.1enisa_euvdEU
Apple Inc. MacOS≤ 10.15.7fstec_bduRU
Apple Inc. MacOS11.0 → 11.0.1fstec_bduRU
Apple Inc. iOS≤ 12.4.9fstec_bduRU
Apple Inc. iOS14.0 → 14.2fstec_bduRU
Apple Inc. iPadOS≤ 14.2fstec_bduRU
Apple Inc. watchOS≤ 5.3.9fstec_bduRU
Apple Inc. watchOS6.0 → 6.2.9fstec_bduRU
Apple Inc. watchOS7.0 → 7.1fstec_bduRU
apple ipados< 14.2nvdUScpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple iphone os< 12.4.9nvdUScpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple iphone os14.0 → 14.2nvdUScpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple mac os x< 10.15.7nvdUScpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*

showing 20 of 24

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2020-12-08modified 2026-06-17

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+16119 more

references (40)

External citations — patches, advisories, analysis.

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