SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-40728

Adobe Acrobat Reader DC version 21.007.20095 (and earlier), 21.007.20096 (and earlier), 20.004.30015 (and earlier), and 17.011.30202 (and earlier) is affected by a use-after-free vulnerability in the processing of the GetURL function on a global object…

HIGH 7.8EPSS 54.6%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 54.6%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

Description

Adobe Acrobat Reader DC version 21.007.20095 (and earlier), 21.007.20096 (and earlier), 20.004.30015 (and earlier), and 17.011.30202 (and earlier) is affected by a use-after-free vulnerability in the processing of the GetURL function on a global object window that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

CVSS 3.1
7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
54.63% probability · 99th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-416
Affected
adobe/acrobat dc · adobe/acrobat reader dc · adobe/acrobat · adobe/acrobat reader
Source
psirt@adobe.com
EPSS trend
0%28%55%3 November 2026: 54.63%3 November 20263 November 2026

EPSS 54.6% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.