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CVE-2021-21089— Adobe Acrobat Reader DC URI Parsing Out-Of-Bounds Read

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 DC存在缓冲区错误漏洞，该漏洞源于未经身份验证的攻击者可利用该漏洞可以利用这个漏洞升级特权。

CVSS 3.3 · Low EPSS 1.87% · P78
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I. Basic Information for CVE-2021-21089

Vulnerability Information
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Vulnerability Title
Adobe Acrobat Reader DC URI Parsing Out-Of-Bounds Read
Source: CVE Program / CVE List V5
Vulnerability Description
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. An unauthenticated attacker could leverage this vulnerability to locally escalate privileges 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:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
Adobe Acrobat Reader DC 缓冲区错误漏洞
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 DC存在缓冲区错误漏洞，该漏洞源于未经身份验证的攻击者可利用该漏洞可以利用这个漏洞升级特权。
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 unspecified ~ 2020.013.20074 -

II. Public POCs for CVE-2021-21089

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III. Intelligence Information for CVE-2021-21089

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Vendor Advisories for CVE-2021-21089 (1)

IV. Related Vulnerabilities

Same product: Acrobat Reader
Same vendor: Adobe
Same weakness: CWE-125

V. Comments for CVE-2021-21089

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