CVE-2021-28643

LOW
Published Aug 20, 20214y ago · Modified Jun 17, 20262w ago
3.3 CVSS 3.1
Low
Find Similar
Published Aug 20, 2021 4y ago
Last Modified Jun 17, 2026 2w ago

Description

Acrobat Reader DC versions 2021.005.20054 (and earlier), 2020.004.30005 (and earlier) and 2017.011.30197 (and earlier) are affected by a Type Confusion vulnerability. An unauthenticated attacker could leverage this vulnerability to disclose sensitive memory information in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

CVSS Details

Base Score
3.3
Exploitability
1.8
Impact
1.4
Vector string
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Low
Integrity None
Availability None

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-843

Affected Products 6

VendorProductVersionRange
adobeacrobat_dc*≥15.008.20082  –  ≤21.005.20054
adobeacrobat_dc*≥17.011.30059  –  ≤17.011.30197
adobeacrobat_dc*≥20.001.30005  –  ≤20.004.30005
adobeacrobat_reader_dc*≥15.008.20082  –  ≤21.005.20054
adobeacrobat_reader_dc*≥17.011.30059  –  ≤17.011.30197
adobeacrobat_reader_dc*≥20.001.30005  –  ≤20.004.30005

References 1

  • helpx.adobe.com https://helpx.adobe.com/security/products/acrobat/apsb21-51.html
    Release NotesVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.