CVE-2009-3953: Adobe Acrobat and Reader Universal 3D Remote Code Execution Vulnerability
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Adobe Acrobat and Reader contains an array boundary issue in Universal 3D (U3D) support that could lead to remote code execution.
CSIRTS triage
- What
- Adobe Acrobat and Reader contains an array boundary issue in Universal 3D (U3D) support that could lead to remote code execution.
- Who is affected
- Users of Adobe Acrobat and Reader are affected.
- Urgency
- Remediation is urgent due to active exploitation and critical severity.
- Action
- Update Adobe Acrobat and Reader to the latest version.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch Acrobat and Reader
Get an email when a new Acrobat and Reader advisory drops — max one per day, one-click unsubscribe.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2009-3953
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Exploitation confirmedCVE-2009-3953Already exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 100% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2009-3953 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for Adobe Acrobat and
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- unknownSecurity Alert: Alert Regarding Vulnerabilities in Adobe Acrobat and Reader (APSB26-63)jpcert · 2026-06-10
- criticalexploitedCVE-2009-3459: Adobe Acrobat and Reader Heap-Based Buffer Overflow Vulnerabilitycisa-kev · 2026-05-20
- unknownSecurity Alert: Alert Regarding Vulnerabilities in Adobe Acrobat and Reader (APSB26-44)jpcert · 2026-04-15
- criticalexploitedCVE-2020-9715: Adobe Acrobat Use-After-Free Vulnerabilitycisa-kev · 2026-04-13
- criticalexploitedCVE-2026-34621: Adobe Acrobat and Reader Prototype Pollution Vulnerabilitycisa-kev · 2026-04-13
- criticalexploitedCVE-2023-21608: Adobe Acrobat and Reader Use-After-Free Vulnerabilitycisa-kev · 2023-10-10
More from CISA Known Exploited Vulnerabilities
- criticalCVE-2026-48939: iCagenda Unrestricted Upload of File with Dangerous Type Vulnerability2026-07-10
- criticalCVE-2026-56291: Balbooa Forms Unrestricted Upload of File with Dangerous Type Vulnerability2026-07-10
- criticalCVE-2026-48908: JoomShaper SP Page Builder Unrestricted Upload of File with Dangerous Type Vulnerability2026-07-07
- criticalCVE-2026-55255: Langflow Authorization Bypass Through User-Controlled Key Vulnerability2026-07-07
- criticalCVE-2026-48282: Adobe ColdFusion Path Traversal Vulnerability2026-07-07