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[email protected]CVE-2021-39837

HistorySep 29, 2021 - 4:15 p.m.

CVE-2021-39837

2021-09-2916:15:08

CWE-416

[email protected]

web.nvd.nist.gov

acrobat reader dc

cve-2021-39837

use-after-free vulnerability

nvd

security

arbitrary code execution

acroform deleteitemat action

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

0.112 Low

EPSS

Percentile

95.2%

JSON

Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a use-after-free vulnerability in the processing of the AcroForm deleteItemAt action 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 configurations

Vulners

NVD

Node

adobeacrobat_readerRange≤2021

adobeacrobat_readerRange≤20.0

adobeacrobat_readerRange≤17.0

VendorProductVersionCPE
adobeacrobat_reader*cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:*:*:*:*
adobeacrobat_reader*cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:*:*:*:*
adobeacrobat_reader*cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
adobe	acrobat_reader	*	cpe:2.3:a:adobe:acrobat_reader::::::::
adobe	acrobat_reader	*	cpe:2.3:a:adobe:acrobat_reader::::::::
adobe	acrobat_reader	*	cpe:2.3:a:adobe:acrobat_reader::::::::

CNA Affected

[
  {
    "product": "Acrobat Reader",
    "vendor": "Adobe",
    "versions": [
      {
        "lessThanOrEqual": "DC 2021 July",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThanOrEqual": "20.0-Classic 2021 July",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThanOrEqual": "17.0-Classic 2021 July",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThanOrEqual": "None",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]