Medium severity6.5NVD Advisory· Published Apr 1, 2021· Updated Jun 17, 2026
CVE-2021-28546
CVE-2021-28546
Description
Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are missing support for an integrity check. An unauthenticated attacker could leverage this vulnerability to modify content in a certified PDF without invalidating the certification. Exploitation of this issue requires user interaction in that a victim must open the tampered file.
Affected products
6cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*+ 3 more
- cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*range: >=17.011.30059,<=17.011.30188
- cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*range: >=15.008.20082,<=20.013.20074
- cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:classic:*:*:*range: >=17.011.30059,<=17.011.30188
- (no CPE)range: unspecified
cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*+ 1 more
- cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*range: >=15.008.20082,<=20.013.20074
- (no CPE)range: <=2020.013.20074, <=2020.001.30018, <=2017.011.30188
Patches
Vulnerability mechanics
References
1- helpx.adobe.com/security/products/acrobat/apsb21-09.htmlnvdVendor Advisory
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