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Fencer Vulns
high 7.8

CVE-2023-26369 kev in the critical feed json

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

published 2023-09-13 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-30189

cvss
7.8
version 3.1, CNA
cisa kev
Exploited
added 2023-09-14
epss
7.5%
EPSS 7.5% chance of exploitation in 30 days, percentile 94%
public exploits
0
none known

Summary

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.

Patch / fix

cisa required action Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

  • adobe acrobat 20.005.30524
  • adobe acrobat_dc 23.006.20320
  • adobe acrobat_reader 20.005.30524
  • adobe acrobat_reader_dc 23.006.20320

Timeline

  1. 0-day patched (Project Zero)
  2. Published
  3. Added to CISA KEV
  4. CISA patch deadline
  5. CISA SSVC: exploitation active

Known exploited

Added
3 y ago
Patch by
2023-10-05 (3 y ago)
Ransomware
Not known
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Vendor, product
Adobe, Acrobat and Reader
CISA name
Adobe Acrobat and Reader Out-of-Bounds Write Vulnerability

Zero-day

Detected in real attacks while still unknown to the vendor and the public, per Google Project Zero's 0day In-the-Wild tracker.

Patched
2023-09-12
Details
project zero root cause analysis

ATT&CK techniques

How it is exploited and what it leads to, in MITRE ATT&CK terms.

  • T1204.002 Malicious File exploitation
  • T1203 Exploitation for Client Execution primary impact

kev release 2025-07-28, att&ck v16.1. KEV to ATT&CK mappings by the MITRE Center for Threat-Informed Defense (Mappings Explorer, Apache-2.0). © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. Terms of use

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
no
Technical impact
total
Assessed
21 mo ago

Exploit prediction

7.46% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • Adobe Acrobat Reader

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.