vciy

CVE-2020-9950

INDEX BUILT · 2026-09-20

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A use after free issue was addressed with improved memory management

CVE-2020-99504 of 4 sources documented this
28

rank 28 = 0 + 22 + 0 + 6 + 0

rank@v1 · scheduled

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.01457  ·  without this subject the record ranks 28

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 8.8, from NVD  ·  without this subject the record ranks 6

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 28

How much of the world it touches

NVD CPE configurations

5 products in the CPE ranges  ·  without this subject the record ranks 22

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 28

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$72,700over the next 30 days, if this record is yours
Movement-$815,000on 2022-04-01, the last material move, 4 years, 5 months before this reading
Basisassumeda published average, not your estate

$72,700 = $4.99M incident cost x 1 exposure x 0.01457 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

Hindsight · the state

0.01457EPSSNOT IN KEVas of 2026-09-20
Severity8.8 HIGHreceipt
Harmtotal lossreceipt
Exploitationnone in held sources
Defensefix version namedreceipt
Movementrisenreceipt
PLATEAU10Minimal movement since 2022-04-01, 1615 days at 0.01, as of 2026-09-02. arc-rules@v1

Foresight · where to check next

CVE-2013-2551Apple macOSGoogle ChromeCVE-2018-15982Mozilla Firefox9950

This record is one instance of CWE-416, use after free. The index holds 8701 prior instances of this class, 106 KEV-listed. The nearest of its KEV-listed records are drawn beside this. taxonomy@v1

Full pattern panel

Prior records in this weakness class. Each is its own record, dated and receipted.
Color is a claim, not decoration:the hostile worldthe defenseno signalspoke length is how much of the record matches, not how bad it is

Running Apple tvOS? Check your version

A deterministic range check against the ranges this record publishes. It tells you where a version sits in the record, not whether your deployment is exploitable. No account needed.

Watch this record

Matches your own product list against every record this index holds, and tells you when one of them moves.

What counts as a move

Set up a watchlist (needs a Practitioner account)

Record your call

Keep your verdict, your reason and the evidence together. The record takes its date when you save it.

AcceptDeferPatch by…Not affectedMitigated

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Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

Reachnetwork-reachable · no privileges required · user interaction required · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · NVD's vectorreceipt
Weakness classCWE-416 Use After Freereceipt
Published consequencesCWE-416: Integrity: Modify Memory; Availability: DoS: Crash, Exit, or Restart; Confidentiality: Read Memory; Integrity, Confidentiality, Availability: Execute Unauthorized Code or Commands[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

Fixed in14.0; 7.0receipt
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.

Exploit Status & Known PoCs a ladder, not a score

Current rung: Nothing observed in held sources.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, NVD8.8 HIGHreceipt
Exploit probability0.01457 · top 28% of all CVEsreceipt
Blast breadth5 products across 1 vendorderived
Assigned byapplereceipt
Recorded changes21 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productApple tvOS; Apple watchOS; Apple Safari; Apple iOS and iPadOSreceipt
Published rangesapple safari < 14.0; apple ipados < 14.0; apple iphone os < 14.0; apple tvos < 14.0receipt
Show all 5 published ranges
apple safari < 14.0
apple ipados < 14.0
apple iphone os < 14.0
apple tvos < 14.0
apple watchos < 7.0
Fixed in14.0; 7.0receipt

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

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What it is stated by the CNA

A use after free issue was addressed with improved memory management. This issue is fixed in watchOS 7.0, tvOS 14.0, Safari 14.0, iOS 14.0 and iPadOS 14.0. Processing maliciously crafted web content may lead to arbitrary code execution. receipt

NVD's analysis a second authority

severity
8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
weakness
CWE-416
affected versions
apple safari < 14.0; apple ipados < 14.0; apple iphone os < 14.0; and 2 more, listed in full below

check it yourself support.apple.com support.apple.com support.apple.com support.apple.com receipt

Dated events

2022-02-04EPSS moved 0.01 to 0.182022-04-01EPSS moved 0.18 to 0.02

Movement the material steps

14 Apr 20210.00287
4 Feb 20220.18168 · crossed 0.10
1 Apr 20220.01843 · crossed 0.10
7 Mar 20230.00285 · scoring model v2023.03.01
17 Mar 20250.0078 · scoring model v2025.03.14
15 Jun 20260.01397 · scoring model v2026.06.15
2 Sep 20260.01457
Show all 21 observations
14 Apr 20210.00287
6 Jan 20220.01275
4 Feb 20220.18168
1 Apr 20220.01843
7 Mar 20230.00285
6 Jun 20230.00286
19 Jun 20230.00338
15 Jul 20230.00332
24 Aug 20230.00339
14 Nov 20230.00358
27 Sep 20240.00375
12 Oct 20240.00516
2 Dec 20240.00731
17 Dec 20240.00708
17 Mar 20250.0078
29 Mar 20250.01714
30 Mar 20250.0078
18 Nov 20250.00725
21 Nov 20250.0078
15 Jun 20260.01397
2 Sep 20260.01457

21 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.01457Published2020-12-08Index as of2026-09-02

The record had been public for 5 years, 8 months when this index was last written.

Published 2020-12-08 receipt · Index as of 2026-09-02 derived

The pattern, elsewhere

This record is one instance of CWE-416, use after free. The index holds 8701 prior instances of this class, 106 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2013-2551matches 8 of 8KEV listed · 2013receipt
CVE-2023-43000 · Apple macOSmatches 9 of 9KEV listed · 2025receipt
CVE-2026-2441 · Google Chromematches 8 of 9KEV listed · 2026receipt
CVE-2026-5281 · Google Chromematches 8 of 9KEV listed · 2026receipt
CVE-2018-15982matches 7 of 8KEV listed · 2019receipt
CVE-2024-9680 · Mozilla Firefoxmatches 7 of 9KEV listed · 2024receipt

"Matches n of m" counts the attributes the two records can both be compared on: the CVSS metrics they share a version of, any weakness class beyond this one, and the vendor. fit-rules@v1

8701 records in this class held. The six above are drawn from the ones CISA has listed as exploited, ranked by how much of the record matches this one. That is why every one of them is KEV-listed: the pool is, so the colour on those spokes says nothing the pool has not already said.

No curated product neighbourhood is held for this product, so the records above are the nearest this index can name. The neighbourhood table covers a small set of products and is extended by hand.

Siblings and hubs

Records related to this one

Its defect family

apple tvos

Of the 9 records in this family, this is the only one holding a stated fix version: 14.0; 7.0.

Grouped by shared product and weakness, not by shared vulnerability. Each record's own state is on its own page.

Family membership: held values

This record is one of a group, and the group's page describes all of them. This page is kept and dated, and the defect family's own page is the one we offer for indexing: the whole group.

Browse the index from here

These are index-wide views, not findings about CVE-2020-9950.

What usually comes next

Everything above needs no account. What is below is work: assembling it, scoping it to your estate, watching it, and handing it to someone else.

Everything on this page is free. Public data. Withholding it protects nothing.