Actively exploited · Published Jan 18, 2023 · Assigned by adobe

CVE-2023-21608Adobe Acrobat Reader DC resetForm Use-After-Free Remote Code Execution Vulnerability

High 7.8 Exploited

In plain English

A high-severity use-after-free in Acrobat Reader from Adobe. Attackers are actively exploiting it in the wild (listed by CISA on October 10, 2023). The chance it is exploited in the next 30 days is estimated at 59.4% (higher than 99.1% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)59.4%top 0.9% of all CVEs
Exploited in the wildYesCISA KEV since Oct 10, 2023
Attack tooling1Public PoC

CISA guidance

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Federal agencies must remediate by Oct 31, 2023.

Official description

Adobe Acrobat Reader versions 22.003.20282 (and earlier), 22.003.20281 (and earlier) and 20.005.30418 (and earlier) are affected by a Use After Free vulnerability 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.

Affected products (as reported)

VendorProductVersions
Adobe Acrobat Reader unspecified – through 20.005.30418unspecified – through 22.003.20282unspecified – through 22.003.20281unspecified – through None

Weakness: CWE-416 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References