VulnerabilityModified

CVE-2021-28546

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.

MEDIUM 6.5EPSS 1.42%

Does this matter?

Lower severity and a low EPSS score (1.42%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1: 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS: 1.42% probability · 71th percentile
CISA KEV: Not listed
Weakness: CWE-353
Affected: adobe/acrobat · adobe/acrobat dc · adobe/acrobat reader · adobe/acrobat reader dc
Source: psirt@adobe.com

References

https://helpx.adobe.com/security/products/acrobat/apsb21-09.htmlVendor Advisory
https://helpx.adobe.com/security/products/acrobat/apsb21-09.htmlVendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.