Buffer overflow in Adobe Acrobat

CVE-2021-40731

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 an out-of-bounds write vulnerability when parsing a crafted JPEG2000 file, which 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.

Vulnerability class: Buffer Overflow

EPSS: 0.080 (94.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-40731?
CVE-2021-40731 is a high-severity vulnerability in Adobe Acrobat, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2021-10-15.
How severe is CVE-2021-40731?
High severity. CVSS v3 base score is 7.8 out of 10.