CVE-2021-28636 json
Adobe Acrobat Reader Unquoted Search Path Vulnerability
published 2021-08-20 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-15305
- cvss
- 7.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.2%
- EPSS 2.2% chance of exploitation in 30 days, percentile 82%
- public exploits
- 0
- none known
Summary
Acrobat Reader DC versions 2021.005.20054 (and earlier), 2020.004.30005 (and earlier) and 2017.011.30197 (and earlier) are affected by an Uncontrolled Search Path Element vulnerability. An attacker with access to the victim's C:/ folder 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.
Patch / fix
Exploit prediction
2.22% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.3 | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 8.5 | AV:N/AC:M/Au:S/C:C/I:C/A:C |
Affected products
- Adobe Acrobat Reader
Classification
- Weakness
-
- CWE-427 Uncontrolled Search Path Element
References
-
helpx.adobe.com
/security/products/acrobat/apsb21-51.html
patch, vendor-advisory
Sources
- CVE List CVE-2021-28636
- NVD CVE-2021-28636
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