CVE-2021-40723 json
Acrobat Reader DC Out-Of-Bounds Read Information Disclosure Vulnerability
published 2023-09-07 3 y ago modified 2026-06-17 4 mo ago also EUVD-2021-27888
- cvss
- 5.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 24%
- public exploits
- 0
- none known
Summary
Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by an 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 file.
Patch / fix
- adobe acrobat 20.001.30020
- adobe acrobat_dc 21.001.20135
- adobe acrobat_reader 17.011.30190, 20.001.30020
- adobe acrobat_reader_dc 21.001.20135
Exploit prediction
0.31% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
Affected products
- Adobe Acrobat Reader
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
-
helpx.adobe.com
/security/products/acrobat/apsb21-09.html
vendor-advisory
Sources
- CVE List CVE-2021-40723
- NVD CVE-2021-40723
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