vciy

CVE-2023-41993

INDEX BUILT · 2026-09-20

No source can show you its own past. This one can.

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The issue was addressed with improved checks

CVE-2023-419934 of 4 sources documented this
78

rank 78 = 40 + 22 + 1 + 9 + 6

rank@v1 · act now

Someone is already using it

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

EPSS 0.29179 · CISA KEV listed  ·  without this subject the record ranks 38

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 56

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

rose on 2025-11-05  ·  without this subject the record ranks 77

How much of the world it touches

NVD CPE configurations

13 products in the CPE ranges  ·  without this subject the record ranks 69

Someone else already set the date

CISA KEV remediation due date

CISA remediation date held  ·  without this subject the record ranks 72

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$1.46Mover the next 30 days, if this record is yours
Movement-$2.98Mon 2025-11-21, the last material move, 9 months before this reading
Basisassumeda published average, not your estate

$1.46M = $4.99M incident cost x 1 exposure x 0.29179 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

0.29179EPSSKEV · LISTED
Severity8.8 HIGHreceipt
Harmtotal lossreceipt
Exploitationin the wild · KEVreceipt
Defensefix version namedreceipt
Movementdoubled within 72hreceipt
PLATEAU10Minimal movement since 2025-11-21, 287 days at 0.29, as of 2026-09-04. arc-rules@v1

Foresight · where to check next

LinuxApple macOSpolkitPalo Alto41993

This record is one instance of CWE-754, improper check for unusual or exceptional conditions. The index holds 641 prior instances of this class, 4 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 macOS? 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.

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Harm, if it fires from the vector and the weakness

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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-754 Improper Check for Unusual or Exceptional Conditionsreceipt
Published consequencesCWE-754: Integrity, Availability: DoS: Crash, Exit, or Restart, Unexpected State[email protected]
Ransomware campaign useUnknown to CISAreceipt

CISA KEV & Federal Remediation Deadline from the record and CISA

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

Fixed in14receipt
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.
CISA remediation statusoverdue since 2023-10-16receipt
CISA required actionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.receipt
Published to CISA KEV4 daysderived

Exploit Status & Known PoCs a ladder, not a score

Current rung: Exploited in the wild · CISA KEV listed, 2023-09-25.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 5 public repositories2023-10-15receipt
  • RUNG 3Exploited in the wild · CISA KEV listed2023-09-25receipt
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, NVD8.8 HIGHreceipt
Exploit probability0.29179 · top 2% of all CVEsreceipt
Blast breadth9 products across 5 vendorsderived
Assigned byapplereceipt
Recorded changes80 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productApple macOSreceipt
Published rangesapple ipados < 17.0.1; apple iphone os < 17.0.1; apple macos < 14.0; fedoraproject fedora 37receipt
Show all 13 published ranges
apple ipados < 17.0.1
apple iphone os < 17.0.1
apple macos < 14.0
fedoraproject fedora 37
fedoraproject fedora 38
fedoraproject fedora 39
debian linux 11.0
debian linux 12.0
oracle graalvm 20.3.13
oracle graalvm 21.3.9
oracle jdk 1.8.0
oracle jre 1.8.0
webkitgtk\+ < 2.42.2
Fixed in14receipt

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

The issue was addressed with improved checks. This issue is fixed in macOS Sonoma 14. Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7. 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-754
affected versions
apple ipados < 17.0.1; apple iphone os < 17.0.1; apple macos < 14.0; and 10 more, listed in full below
also scored by
8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

check it yourself support.apple.com security.gentoo.org security.netapp.com receipt

Dated events

2023-09-25Added to CISA KEV2023-10-16CISA remediation due2025-03-17EPSS moved 0.00 to 0.722026-06-15EPSS moved 0.24 to 0.29

Movement the material steps

22 Sep 20230.00066
17 Mar 20250.72461 · crossed 0.10 and 0.50 · scoring model v2025.03.14
15 Apr 20250.08736 · crossed 0.10 and 0.50
9 Oct 20250.12702 · crossed 0.10
18 Nov 20250.81332 · crossed 0.50
21 Nov 20250.21526 · crossed 0.50
15 Jun 20260.29179 · scoring model v2026.06.15
1 Sep 20260.29179

This score more than doubled inside 72 hours. Both observations are in the full history below.

Show all 66 observations
22 Sep 20230.00066
23 Sep 20230.00062
26 Sep 20230.00152
27 Sep 20230.00083
29 Sep 20230.00087
30 Sep 20230.00085
1 Oct 20230.00105
3 Oct 20230.00135
12 Oct 20230.00185
13 Oct 20230.00183
14 Oct 20230.00175
16 Oct 20230.00233
24 Oct 20230.00617
22 Dec 20230.00283
11 Jan 20240.00112
17 Jan 20240.00088
24 Jan 20240.00184
8 Feb 20240.00161
27 Apr 20240.00080
9 May 20240.00087
24 May 20240.00313
21 Aug 20240.00309
16 Sep 20240.00298
27 Sep 20240.00314
23 Oct 20240.00305
17 Dec 20240.00463
3 Mar 20250.00497
17 Mar 20250.72461
19 Mar 20250.70208
20 Mar 20250.72461
24 Mar 20250.70208
25 Mar 20250.72461
27 Mar 20250.72531
28 Mar 20250.79823
29 Mar 20250.70208
30 Mar 20250.79823
15 Apr 20250.08736
16 Jun 20250.08952
29 Jun 20250.08736
15 Jul 20250.08952
28 Jul 20250.08736
16 Sep 20250.08952
26 Sep 20250.08736
1 Oct 20250.0984
9 Oct 20250.12702
24 Oct 20250.13899
27 Oct 20250.12417
28 Oct 20250.13899
5 Nov 20250.22393
6 Nov 20250.21526
18 Nov 20250.81332
21 Nov 20250.21526
5 Dec 20250.21475
18 Dec 20250.21914
27 Dec 20250.19818
28 Dec 20250.21914
29 Dec 20250.21475
29 Jan 20260.21705
21 Mar 20260.24891
8 Apr 20260.24414
21 Apr 20260.24891
22 Apr 20260.24414
3 May 20260.24165
15 Jun 20260.29179
28 Aug 20260.28967
1 Sep 20260.29179

66 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 0.29179Published2023-09-21CISA KEV2023-09-25Public PoC2023-10-15Index as of2026-09-04

Listed by CISA 4 days after it published, exploit probability more than doubled between 2023-09-23 and 2023-09-26 (0.00062 → 0.00152) and the record had been public for 2 years, 11 months when this index was last written.

Published 2023-09-21 receipt · CISA KEV 2023-09-25 receipt · Public PoC 2023-10-15 receipt · Index as of 2026-09-04 derived

The pattern, elsewhere

This record is one instance of CWE-754, improper check for unusual or exceptional conditions. The index holds 641 prior instances of this class, 4 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2025-39682 · Linuxmatches 7 of 9KEV listed · 2025receipt
CVE-2023-41992 · Apple macOSmatches 6 of 9KEV listed · 2023receipt
CVE-2021-3560 · polkitmatches 5 of 9KEV listed · 2022receipt
CVE-2024-3393 · Palo Alto Networks Cloud NGFWonly 1 attribute comparableKEV 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

641 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 macos

Of the 3 records in this family, this is the only one holding a CISA KEV listing: Apple Multiple Products WebKit Code Execution Vulnerability.

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.

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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.