CVE-2023-21608: Adobe Acrobat and Reader Use-After-Free Vulnerability

CVE-2023-21608 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2023-10-10

Adobe Acrobat and Reader are affected by a use-after-free vulnerability that can lead to arbitrary code execution in the context of the current user. Exploitation requires a victim to open a specially crafted malicious file.

Technologies: Adobe Acrobat, Adobe AIR, Adobe Flash Player, Adobe Reader. Vendors: Adobe.

Quick answers

Is CVE-2023-21608 exploited in the wild?
Yes. CVE-2023-21608 is known to be exploited in the wild, first recorded on 10 October 2023. Treat it as urgent.
How severe is CVE-2023-21608?
Critical severity, with a CVSS score of 7.8, published 10 October 2023.
Which products and versions are affected?
Adobe Acrobat Reader 22.003.20282 (and earlier), 22.003.20281 (and earlier), 20.005.30418 (and earlier); Adobe Acrobat DC 15.008.20082 up to 22.003.20282; Adobe Acrobat Reader DC 15.008.20082 up to 22.003.20282.
Is there a fix for CVE-2023-21608?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2023-21608 attacked?
It is attacked with local access, in a network appliance.
Am I affected by CVE-2023-21608?
Check whether you run Adobe Acrobat, Adobe AIR, Adobe Flash Player or one of the others listed. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Adobe Acrobat Reader 22.003.20282 (and earlier), 22.003.20281 (and earlier), 20.005.30418 (and earlier)
  • Adobe Acrobat DC 15.008.20082 up to 22.003.20282
  • Adobe Acrobat Reader DC 15.008.20082 up to 22.003.20282

Timeline

  • 2023-01-18: disclosed: NVD Published Date
  • 2023-10-10: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2023-10-10: exploited: Reported as exploited in the wild

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