Use After Free in Adobe Bridge
CVE-2021-42721
Acrobat Bridge versions 11.1.1 and earlier are affected by a use-after-free vulnerability in the processing of Format event actions that 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: Use-After-Free
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.037 (89.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.035 · newest: 0.037 · change: +0.001
Affected products
- Adobe Bridge — versions unspecified
- Adobe Media Encoder
- Microsoft Windows
Weakness classification (CWE)
References
- helpx.adobe.com/security/products/bridge/apsb21-94.html (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-42721?
- CVE-2021-42721 is a high-severity vulnerability in Adobe Bridge, classified under Use After Free. CVSS score: 7.8/10. Published 2021-11-16.
- How severe is CVE-2021-42721?
- High severity. CVSS v3 base score is 7.8 out of 10.