Adobe Acrobat and Reader Use-After-Free Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 03/11/2021. Patch affected systems as an emergency.
| Package | Affected versions | Patched versions |
|---|---|---|
| acrobat | ≥ 17.011.30059, ≤ 17.011.30194≥ 20.001.30005, ≤ 20.001.30020 | |
| acrobat dc | ≥ 15.008.20082, ≤ 21.001.20149≥ 15.008.20082, ≤ 21.001.20150 | |
| acrobat reader | ≥ 17.011.30059, ≤ 17.011.30194≥ 20.001.30005, ≤ 20.001.30020 | |
| acrobat reader dc | ≥ 15.008.20082, ≤ 21.001.20149≥ 15.008.20082, ≤ 21.001.20150 |
Acrobat Reader DC versions versions 2021.001.20150 (and earlier), 2020.001.30020 (and earlier) and 2017.011.30194 (and earlier) are affected by a Use After Free vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve 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.
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