CISA KEV · Known exploitedHigh

CVE-2023-26369

Adobe Acrobat and Reader

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.

CVSS
7.8
EPSS
7.04%
93.5% percentile
CISA KEV
Listed
Published
2023.09.13
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability7.04%
Technical severityCVSS 7.8

Vulnerability overview

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.

Affected product and versions

Product
Adobe Acrobat and Reader
Affected versions
>= 20.001.3005 < 20.005.30524, >= 15.007.20033 < 23.006.20320
Fixed versions
20.005.30524, 23.006.20320

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA required action

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

Due date: 2023.10.05
  1. 1
    Identify

    Confirm that Adobe Acrobat and Reader and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
CWE-787
KEV added
2023.09.14
Ransomware use
미확인
CVE-2023-26369 — Adobe Acrobat and Reader | SECUFOCUS NOW