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Medium severity5.5NVD Advisory· Published Sep 6, 2023· Updated Jun 17, 2026

CVE-2021-39859

CVE-2021-39859

Description

Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Use After Free vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Affected products

6
  • Adobe Inc./Acrobat4 versions
    cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*+ 3 more
    • cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*range: >=17.011.30180,<17.011.30202
    • cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*range: >=15.007.20033,<=21.005.20060
    • cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:classic:*:*:*range: >=17.011.30180,<17.011.30202
    • (no CPE)range: 0
  • Adobe Inc./Acrobat Reader Dc2 versions
    cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*+ 1 more
    • cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*range: >=15.007.20033,<=21.005.20060
    • (no CPE)range: <=2021.005.20060, <=2020.004.30006, <=2017.011.30199

Patches

Vulnerability mechanics

References

1

News mentions

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