What is CVE-2021-21036?

CVE-2021-21036 is a high-severity vulnerability in Adobe Acrobat, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2021-02-11.

How severe is CVE-2021-21036?

High severity. CVSS v3 base score is 7.8 out of 10.

Integer overflow in Adobe Acrobat

CVE-2021-21036

Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by an Integer Overflow vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve 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.

Vulnerability class: Integer Overflow

EPSS: 0.027 (84.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Adobe Acrobat
Adobe Acrobat_dc
Adobe Acrobat Reader — versions unspecified
Adobe Acrobat_reader
Adobe Acrobat_reader_dc
Apple Macos
Microsoft Windows

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

psirt@adobe.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-21036?: CVE-2021-21036 is a high-severity vulnerability in Adobe Acrobat, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2021-02-11.
How severe is CVE-2021-21036?: High severity. CVSS v3 base score is 7.8 out of 10.