vciy

CVE-2023-43585

INDEX BUILT · 2026-09-20

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Improper access control in Zoom Mobile App for iOS and Zoom SDKs for iOS before version 5.16.5 may allow an authenticated user to conduct a…

CVE-2023-435854 of 4 sources documented this
21

rank 21 = 0 + 16 + 0 + 5 + 0

rank@v1 · backlog

Someone is already using it

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

EPSS 0.00599  ·  without this subject the record ranks 21

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 6.5, from NVD  ·  without this subject the record ranks 5

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 21

How much of the world it touches

NVD CPE configurations

4 products in the CPE ranges  ·  without this subject the record ranks 16

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 21

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$21,500over the next 30 days, if this record is yours
Movementno material movementthe record holds only daily drift and scoring model releases
Basisassumeda published average, not your estate

$21,500 = $4.99M incident cost x 0.7179585840212677 exposure x 0.00599 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

0.00599EPSSNOT IN KEVas of 2026-09-20
Severity7.1 HIGHreceipt
Harmpartial impactreceipt
Exploitationnone in held sources
Defenseunaffected versions publishedreceipt
Movementscoring model changedreceipt
PLATEAU10Minimal movement since 2023-12-14, 914 days at 0.01, as of 2026-06-15. arc-rules@v1

Foresight · where to check next

No weakness class or product neighbourhood is held for this record, so this index cannot name anywhere to check next. That is an absence in the record, not a finding about the software.

Color is a claim, not decoration:the hostile worldthe defenseno signal

Sources disagree here.

Severity score
Zoom7.1 HIGHreceipt
NVD6.5 MEDIUMreceipt
What it costs
ZoomComplete confidentiality loss; partial availability lossreceipt
NVDComplete confidentiality lossreceipt

Both shown, dated. We don't pick winners. disagreement-rules@v1

Running Zoom Mobile App for iOS and SDKs for iOS? 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

Written for the ticket you're about to file.

Reachnetwork-reachable · low privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality loss; partial availability lossreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-449 The UI Performs the Wrong Actionreceipt
Published consequencesCWE-449: Other: Quality Degradation, Varies by Context[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

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

First unaffected version, by branchzoom 5.16.5; meeting software development kit 5.16.0; meeting software development kit 5.16.5; video software development kit 5.16.5receipt
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, the CNA7.1 HIGHreceipt
CVSS, NVD6.5 MEDIUMreceipt
Exploit probability0.00599 · top 53% of all CVEsreceipt
Blast breadth3 products across 1 vendorderived
Assigned byZoomreceipt
Recorded changes14 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productZoom Video Communications, Inc. Zoom Mobile App for iOS and SDKs for iOSreceipt
Published rangeszoom meeting software development kit < 5.16.0; zoom meeting software development kit < 5.16.5; zoom video software development kit < 5.16.5; zoom < 5.16.5receipt

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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Attack path

Network requestrequires low privilegesSDKs for iOSCWE-449 weaknessConfidentiality lossC:Hexploits CWE-449data compromise

What it is stated by the CNA

Improper access control in Zoom Mobile App for iOS and Zoom SDKs for iOS before version 5.16.5 may allow an authenticated user to conduct a disclosure of information via network access. receipt

NVD's analysis a second authority

severity
6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
weakness
CWE-449
affected versions
zoom meeting software development kit < 5.16.0; zoom meeting software development kit < 5.16.5; zoom video software development kit < 5.16.5; and 1 more, listed in full below
also scored by
[email protected] 7.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L

The CNA scored it 7.1 and NVD 6.5. Both are shown because both were published; we do not pick one.

check it yourself zoom.com receipt

Movement the material steps

14 Dec 20230.00043
17 Mar 20250.00147 · scoring model v2025.03.14
15 Jun 20260.00599 · scoring model v2026.06.15
Show all 14 observations
14 Dec 20230.00043
19 Dec 20230.00049
12 Nov 20240.00052
19 Dec 20240.00064
17 Mar 20250.00147
19 Mar 20250.00153
29 Mar 20250.00318
30 Mar 20250.00153
7 Apr 20250.00165
15 Apr 20250.00095
3 May 20250.00129
18 Nov 20250.00171
21 Nov 20250.00129
15 Jun 20260.00599

14 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 0.00599Published2023-12-13Index as of2026-06-15

The record had been public for 2 years, 6 months when this index was last written.

Published 2023-12-13 receipt · Index as of 2026-06-15 derived

Siblings and hubs

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What usually comes next

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