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[email protected]CVE-2021-21893

HistoryAug 05, 2021 - 9:15 p.m.

CVE-2021-21893

2021-08-0521:15:10

CWE-416

[email protected]

web.nvd.nist.gov

cve-2021-21893

use-after-free vulnerability

foxit software

pdf reader

arbitrary code execution

nvd

javascript engine

memory reuse

browser plugin extension

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

8.7 High

AI Score

Confidence

High

6.8 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.004 Low

EPSS

Percentile

72.5%

JSON

A use-after-free vulnerability exists in the JavaScript engine of Foxit Software’s PDF Reader, version 11.0.0.49893. A specially crafted PDF document can trigger the reuse of previously freed memory, which can lead to arbitrary code execution. An attacker needs to trick the user to open the malicious file to trigger this vulnerability. Exploitation is also possible if a user visits a specially crafted, malicious site if the browser plugin extension is enabled.

Affected configurations

Vulners

NVD

Node

foxitreader3.0Range≤11.0.0.49893

VendorProductVersionCPE
foxitreader3\.0*cpe:2.3:a:foxit:reader3\.0:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
foxit	reader3\.0	*	cpe:2.3:a:foxit:reader3\.0::::::::

CNA Affected

[
  {
    "product": "Foxit",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Foxit Reader 11.0.0.49893"
      }
    ]
  }
]