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.

CvssV3 impact


Version

3.1

VectorString

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

AttackVector

NETWORK

AttackComplexity

LOW

PrivilegesRequired

NONE

UserInteraction

REQUIRED

Scope

UNCHANGED

ConfidentialityImpact

NONE

IntegrityImpact

HIGH

AvailabilityImpact

NONE

BaseScore

6.5

BaseSeverity

MEDIUM

CvssV2 impact


AccessComplexity

MEDIUM

ConfidentialityImpact

NONE

AvailabilityImpact

NONE

IntegrityImpact

PARTIAL

BaseScore

4.3

VectorString

AV:N/AC:M/Au:N/C:N/I:P/A:N

Version

2.0

AccessVector

NETWORK

Authentication

NONE