Adobe Acrobat Reader versions 23.003.20244 (and earlier) and 20.005.30467 (and earlier) are affected by a Use After Free 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.
Security readout for executives and security teams
Plain-English summary
This flaw lets a malicious PDF trigger code execution when opened in affected Adobe Acrobat Reader versions. It runs with the current user's permissions, so business impact depends on user privilege and endpoint controls. The bundle does not show active exploitation, but the phishing-style delivery path makes timely patch validation important.
Executive priority
Prioritize remediation in the normal high-severity endpoint patch cycle, faster for teams handling external documents. The issue can become code execution after a user opens a malicious file, but the provided sources do not establish active exploitation.
Technical view
CVE-2023-38225 is a CWE-416 use-after-free in Adobe Acrobat Reader DC AcroForm handling. Affected versions include 23.003.20244 and earlier, and 20.005.30467 and earlier. Exploitation requires user interaction by opening a malicious file and may lead to arbitrary code execution as the current user.
Likely exposure
Organizations are exposed where Adobe Acrobat Reader versions at or below the listed affected builds remain installed, especially on endpoints that routinely open external PDFs from email, web downloads, portals, or shared drives.
Exploitation context
The supplied bundle marks KEV as false and provides no cited evidence of active exploitation. Exploitation requires a victim to open a malicious file. Treat this as a realistic document-delivery risk, not confirmed in-the-wild exploitation from the provided evidence.
Researcher notes
Evidence is limited to CVE metadata and Adobe's advisory reference. The CVSS vector is local attack vector with required user interaction, no privileges, unchanged scope, and high confidentiality, integrity, and availability impact. Do not infer exploit availability or fixed build numbers beyond vendor guidance.
Mitigation direction
Review Adobe APSB23-30 for the vendor-fixed Reader versions.
Update affected Acrobat Reader installations according to Adobe guidance.
Restrict opening untrusted PDFs until affected systems are remediated.
Use endpoint controls to reduce risk from external PDF attachments.
Keep users operating without unnecessary local administrative privileges.
Validation and detection
Inventory Adobe Acrobat Reader versions across managed endpoints.
Compare installed versions with 23.003.20244 and 20.005.30467 thresholds.
Confirm patch status against Adobe APSB23-30.
Prioritize users who receive or process external PDF files.
Check whether Reader is the default handler for downloaded PDFs.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
cwe · low confidence lookup
CWE-416: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
1CVSS vectors
3Timeline events
2ADP providers
2Source links
SSVC decision data
CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total
CVSS vector scores
1 official score
We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-416 · source CWE mapping
Use After Free
Use After Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.