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CVE-2023-21586— Acrobat Reader | NULL Pointer Dereference (CWE-476)

Quick assessment

Affected
Adobe Acrobat Reader
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Adobe Acrobat Reader是美国奥多比（Adobe）公司的一款PDF查看器。该软件用于打印，签名和注释 PDF。 Adobe Acrobat Reader存在代码问题漏洞，该漏洞源于空指针取消引用。

CVSS 5.5 · Medium EPSS 2.21% · P82
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I. Basic Information for CVE-2023-21586

Vulnerability Information
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Vulnerability Title
Acrobat Reader | NULL Pointer Dereference (CWE-476)
Source: CVE Program / CVE List V5
Vulnerability 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 NULL Pointer Dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
Adobe Acrobat Reader 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Adobe Acrobat Reader是美国奥多比（Adobe）公司的一款PDF查看器。该软件用于打印，签名和注释 PDF。 Adobe Acrobat Reader存在代码问题漏洞，该漏洞源于空指针取消引用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Adobe Acrobat Reader 0 ~ 22.003.20281 -

II. Public POCs for CVE-2023-21586

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III. Intelligence Information for CVE-2023-21586

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Vendor Advisories for CVE-2023-21586 (1)

Same Patch Batch · Adobe · 2024-12-18 · 10 CVEs total

CVE-2022-44518 7.8 HIGH Acrobat Reader | Use After Free (CWE-416)
CVE-2022-44512 7.8 HIGH Acrobat Reader | Out-of-bounds Write (CWE-787)
CVE-2022-44520 7.8 HIGH Acrobat Reader | Use After Free (CWE-416)
CVE-2022-44513 7.8 HIGH Acrobat Reader | Out-of-bounds Write (CWE-787)
CVE-2022-44514 7.8 HIGH Acrobat Reader | Use After Free (CWE-416)
CVE-2022-44517 5.5 MEDIUM Acrobat Reader | Out-of-bounds Read (CWE-125)
CVE-2022-44519 5.5 MEDIUM Acrobat Reader | Use After Free (CWE-416)
CVE-2022-44516 5.5 MEDIUM Acrobat Reader | Out-of-bounds Read (CWE-125)
CVE-2022-44515 5.5 MEDIUM Acrobat Reader | Out-of-bounds Read (CWE-125)

IV. Related Vulnerabilities

Same product: Acrobat Reader
Same vendor: Adobe
Same weakness: CWE-476

V. Comments for CVE-2023-21586

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