CVE-2021-35986 json
Adobe Acrobat Pro DC getAnnot Type Confusion Information Disclosure Vulnerability
published 2021-08-20 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-22619
- cvss
- 3.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.7%
- EPSS 2.7% chance of exploitation in 30 days, percentile 86%
- 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 Type Confusion vulnerability. An unauthenticated attacker could leverage this vulnerability to read arbitrary system information in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Exploit prediction
2.72% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.3 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:P/I:N/A:N |
Affected products
- Adobe Acrobat Reader
Classification
- Weakness
-
- CWE-843 Access of Resource Using Incompatible Type
References
-
helpx.adobe.com
/security/products/acrobat/apsb21-51.html
release-notes, vendor-advisory
-
zerodayinitiative.com
/advisories/ZDI-21-1145/
third-party-advisory, vdb-entry
Sources
- CVE List CVE-2021-35986
- NVD CVE-2021-35986
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.