Use After Free in Adobe Acrobat

CVE-2021-21061

Acrobat Pro DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by a Use-after-free vulnerability when parsing a specially crafted PDF file. An unauthenticated attacker could leverage this vulnerability to disclose sensitive information in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Vulnerability class: Use-After-Free

Published · last modified .

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.021 (80.7th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 80.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-21061: held from 0.020 to 0.021.

EPSS over last 30 days · oldest: 0.020 · newest: 0.021 · change: +0.001

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-21061?
CVE-2021-21061 is a low-severity vulnerability in Adobe Acrobat, classified under Use After Free. CVSS score: 3.3/10. Published 2021-02-11.
How severe is CVE-2021-21061?
Low severity. CVSS v3 base score is 3.3 out of 10.
Is CVE-2021-21061 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.