Use After Free in Adobe Acrobat Dc
CVE-2021-40726
Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a use-after-free vulnerability when processing AcroForm field that could result in arbitrary code execution in the context of the current user. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
Vulnerability class: Use-After-Free
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.053 (92.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.053 · newest: 0.053 · change: 0.000
Affected products
- Adobe Acrobat Dc
- Adobe Acrobat Reader — versions unspecified
- Adobe Acrobat Reader Dc
- Apple macOS
- Microsoft Windows
Weakness classification (CWE)
References
- helpx.adobe.com/security/products/acrobat/apsb21-55.html (Release Notes, Vendor Advisory)
- www.zerodayinitiative.com/advisories/ZDI-21-1249/ (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-40726?
- CVE-2021-40726 is a high-severity vulnerability in Adobe Acrobat Dc, classified under Use After Free. CVSS score: 7.8/10. Published 2021-10-07.
- How severe is CVE-2021-40726?
- High severity. CVSS v3 base score is 7.8 out of 10.