Out-of-bounds Read in Adobe Acrobat
CVE-2021-40729
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 out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious PDF file.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.043 (90.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.043 · newest: 0.043 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- helpx.adobe.com/security/products/acrobat/apsb21-104.html (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-40729?
- CVE-2021-40729 is a low-severity vulnerability in Adobe Acrobat, classified under Out-of-bounds Read. CVSS score: 3.3/10. Published 2021-10-15.
- How severe is CVE-2021-40729?
- Low severity. CVSS v3 base score is 3.3 out of 10.
- Is CVE-2021-40729 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.