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ExploitedIn CISA KEVFix available

CVE-2023-26369

Exploitation confirmed. First attested on 2023-09-14 by CISA-ADP, CISA KEV, GCVE · kevintel.

  • Published2023-09-13
  • Fixed in20.005.30524
  • WeaknessCWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2023-09-1309:15CVE publishedNVD
  2. 2023-09-14Added to the CISA KEV catalogCISA KEV
  3. 2023-09-14Listed as exploited by GCVEGCVE
  4. 2023-09-14Exploitation first reportedCISA KEV
  5. 2025-02-0417:54SSVC exploitation set to activeCISA-ADP

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-26369?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-26369?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Adobe acrobatversion to verify
BranchAffectedFixed in
20.x≥ 20.001.3005, < 20.005.3052420.005.30524
Adobe acrobat dcversion to verify
BranchAffectedFixed in
23.6≥ 15.007.20033, < 23.006.2032023.006.20320
Adobe acrobat readerversion to verify
BranchAffectedFixed in
20.x≥ 20.001.3005, < 20.005.3052420.005.30524

1 more product in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As adobe, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Adobe Acrobat Readerother versions: affected
    Affected
    • ≤ 20.005.30514no fix statedsemver

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2023-09-13

Fix

  1. Update Adobe acrobat to 20.005.30524
  2. CISA’s required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.due 2023-10-05

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2023-09-14
Patch Due Date
2023-10-05
Ransomware Use
Unknown
Required Action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2023-09-13
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-pxpg-54ph-g5gh

Frequently asked questions

What is CVE-2023-26369?

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.

Is CVE-2023-26369 actively exploited?

Yes. CVE-2023-26369 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2023-10-05.

What is the CVSS score for CVE-2023-26369?

CVE-2023-26369 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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Sources for this record