vciy

CVE-2023-26369

INDEX BUILT · 2026-09-20

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[Google Project Zero] Adobe Acrobat DC OOBW 0-day actively exploited in the wild

CVE-2023-263694 of 4 sources documented this
71

rank 71 = 40 + 20 + 0 + 5 + 6

rank@v1 · act now

Someone is already using it

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

EPSS 0.07063 · CISA KEV listed  ·  without this subject the record ranks 31

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 7.8, from the CNA  ·  without this subject the record ranks 51

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 71

How much of the world it touches

NVD CPE configurations

4 products in the CPE ranges  ·  without this subject the record ranks 66

Someone else already set the date

CISA KEV remediation due date

CISA remediation date held  ·  without this subject the record ranks 65

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$352,000over the next 30 days, if this record is yours
Movement-$1.27Mon 2025-11-21, the last material move, 9 months before this reading
Basisassumeda published average, not your estate

$352,000 = $4.99M incident cost x 1 exposure x 0.07063 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

0.07063EPSSKEV · LISTED
Severity7.8 HIGHreceipt
Harmtotal lossreceipt
Exploitationin the wild · KEVreceipt
Defenseunaffected versions publishedreceipt
Movementdoubled within 72hreceipt
PLATEAU10Minimal movement since 2025-11-21, 298 days at 0.07, as of 2026-09-15. arc-rules@v1

Foresight · where to check next

Google ChromeFortinetMicrosoft WindowsMicrosoft WindowsFortinet26369

This record is one instance of CWE-787, out-of-bounds write. The index holds 14893 prior instances of this class, 164 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 Adobe Acrobat Reader? Check your version

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Harm, if it fires from the vector and the weakness

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Reachneeds local access · no privileges required · user interaction required · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-787 Out-of-bounds Writereceipt
Published consequencesCWE-787: Integrity: Modify Memory, Execute Unauthorized Code or Commands; Availability: DoS: Crash, Exit, or Restart; Other: 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.

First unaffected version, by branchacrobat 20.005.30524; acrobat dc 23.006.20320; acrobat reader 20.005.30524; acrobat reader dc 23.006.20320receipt
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 2023-10-05receipt
CISA required actionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.receipt
Published to CISA KEV1 dayderived

Exploit Status & Known PoCs a ladder, not a score

Current rung: Exploited in the wild · CISA KEV listed, 2023-09-14.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed2023-09-14receipt
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA7.8 HIGHreceipt
Exploit probability0.07063 · top 6% of all CVEsreceipt
Blast breadth4 products across 1 vendorderived
Assigned byadobereceipt
Recorded changes74 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productAdobe Acrobat Readerreceipt
Published rangesadobe acrobat >= 20.001.3005 < 20.005.30524; adobe acrobat dc >= 15.007.20033 < 23.006.20320; adobe acrobat reader >= 20.001.3005 < 20.005.30524; adobe acrobat reader dc >= 15.007.20033 < 23.006.20320receipt

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

Local accessrequires user interactionCISA KEV listingadded 09-14 · due 10-05Adobe Acrobat ReaderCWE-787 out-of-bounds writeFull compromise (C/I/A)C:H / I:H / A:Hmandates remediationexploits CWE-787data compromise

What it is stated by the CNA

Acrobat Reader versions 23.003.20284 (and earlier), 20.005.30516 (and earlier) and 20.005.30514 (and earlier) are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file. receipt

NVD's analysis a second authority

weakness
CWE-787
affected versions
adobe acrobat >= 20.001.3005 < 20.005.30524; adobe acrobat dc >= 15.007.20033 < 23.006.20320; adobe acrobat reader >= 20.001.3005 < 20.005.30524; and 1 more, listed in full below
also scored by
[email protected] 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

check it yourself helpx.adobe.com receipt

Dated events

2023-09-14Added to CISA KEV2023-09-16EPSS moved 0.00 to 0.172023-10-05CISA remediation due2025-04-15EPSS moved 0.39 to 0.002026-06-15EPSS moved 0.01 to 0.07

Movement the material steps

13 Sep 20230.00042
16 Sep 20230.17368 · crossed 0.10
18 Sep 20230.03499 · crossed 0.10
17 Mar 20250.37018 · crossed 0.10 · scoring model v2025.03.14
19 Mar 20250.66742 · crossed 0.50
20 Mar 20250.30949 · crossed 0.50
27 Mar 20250.76866 · crossed 0.50
28 Mar 20250.39187 · crossed 0.50
29 Mar 20250.76866 · crossed 0.50
30 Mar 20250.39187 · crossed 0.50
15 Apr 20250.00316 · crossed 0.10
18 Nov 20250.25928 · crossed 0.10
21 Nov 20250.00563 · crossed 0.10
15 Jun 20260.07036 · scoring model v2026.06.15
15 Sep 20260.07063

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

Show all 63 observations
13 Sep 20230.00042
14 Sep 20230.00055
15 Sep 20230.00232
16 Sep 20230.17368
18 Sep 20230.03499
15 Oct 20230.02914
21 Dec 20230.02407
29 Dec 20230.02466
16 Jan 20240.02611
31 Jan 20240.03654
16 Feb 20240.02957
5 Mar 20240.04130
20 Mar 20240.05681
28 Mar 20240.04377
21 Apr 20240.04639
1 May 20240.02375
25 May 20240.02146
3 Jun 20240.01524
16 Jun 20240.01536
27 Jun 20240.02513
20 Jul 20240.02493
2 Aug 20240.01873
25 Aug 20240.01518
2 Oct 20240.01775
15 Oct 20240.01937
9 Nov 20240.02519
5 Dec 20240.03483
17 Dec 20240.02607
14 Jan 20250.03578
14 Feb 20250.05888
23 Feb 20250.05245
8 Mar 20250.07240
17 Mar 20250.37018
19 Mar 20250.66742
20 Mar 20250.30949
23 Mar 20250.33131
25 Mar 20250.39187
27 Mar 20250.76866
28 Mar 20250.39187
29 Mar 20250.76866
30 Mar 20250.39187
15 Apr 20250.00316
17 May 20250.0043
9 Jul 20250.00403
24 Jul 20250.00432
21 Aug 20250.00443
2 Sep 20250.00494
16 Sep 20250.00491
1 Oct 20250.00488
14 Oct 20250.00483
22 Oct 20250.00559
24 Oct 20250.0044
25 Oct 20250.00563
18 Nov 20250.25928
21 Nov 20250.00563
8 May 20260.00541
24 May 20260.00738
25 May 20260.00577
8 Jun 20260.00781
11 Jun 20260.00813
15 Jun 20260.07036
14 Sep 20260.07096
15 Sep 20260.07063

63 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 0.07063Published2023-09-13CISA KEV2023-09-14Index as of2026-09-15

Listed by CISA one day after it published, exploit probability more than doubled between 2023-09-14 and 2023-09-15 (0.00055 → 0.00232) and the record had been public for 3 years when this index was last written.

Published 2023-09-13 receipt · CISA KEV 2023-09-14 receipt · Index as of 2026-09-15 derived

The pattern, elsewhere

This record is one instance of CWE-787, out-of-bounds write. The index holds 14893 prior instances of this class, 164 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2022-2294 · Google Chromematches 7 of 9KEV listed · 2022receipt
CVE-2024-21762 · Fortinet FortiProxymatches 6 of 9KEV listed · 2024receipt
CVE-2024-30051 · Microsoft Windows 10 Version 1809matches 6 of 9KEV listed · 2024receipt
CVE-2022-42475 · Fortinet FortiProxymatches 6 of 9KEV listed · 2023receipt
CVE-2023-23376 · Microsoft Windows 10 Version 1507matches 6 of 9KEV listed · 2023receipt
CVE-2023-27997 · Fortinet FortiOS-6K7Kmatches 6 of 9KEV listed · 2023receipt

"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

14893 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

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What usually comes next

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