CVE-2021-39861 is an out-of-bounds read vulnerability affecting Adobe Acrobat Reader DC versions 2021.005.20060 and earlier, 2020.004.30006 and earlier, and 2017.011.30199 and earlier, across Adobe, Apple, and Microsoft platforms. This medium severity vulnerability (CVSS 5.5) requires user interaction, specifically opening a malicious file, to disclose arbitrary memory information. While the potential impact is high for confidentiality, there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 20.006.20034, <= 21.005.20060CPE matchmatch criteria | cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:* | ||
>= 20.006.20034, <= 21.005.20058CPE matchmatch criteria | cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:* | ||
>= 20.006.20034, <= 21.005.20060CPE matchmatch criteria | cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:* | ||
>= 17.011.30158, <= 17.011.30199CPE matchmatch criteria | cpe:2.3:a:adobe:acrobat_2017:*:*:*:*:classic_2017:*:*:* | ||
>= 17.011.30158, <= 17.011.30199CPE matchmatch criteria | cpe:2.3:a:adobe:acrobat_reader_2017:*:*:*:*:classic_2017:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.