CVE-2023-21608
KEVAdobe Acrobat and Reader Use-After-Free Vulnerability
Description
Adobe Acrobat and Reader contains a use-after-free vulnerability that allows for code execution in the context of the current user.
Adobe Acrobat Reader versions 22.003.20282 (and earlier), 22.003.20281 (and earlier) and 20.005.30418 (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.
CVSS 3.1 vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HPublishedJan 18, 2023
Last modifiedJun 17, 2026
Added to KEVOct 10, 2023
Remediation dueOct 31, 2023
References
- helpx.adobe.com/security/products/acrobat/apsb23-01.htmlVendor Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-21608Third Party AdvisoryUS Government Resource
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Risk assessment · High
Actively exploited. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 1091 days
- CVSS
- 7.8 HIGH
- EPSS (30-day exploit probability)
- 59.4% · top 1% of all CVEs
- Weakness
- CWE-416
Recommended actions
- 1.Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.