CVE-2023-29320

Arbitrary code execution via Net API bypass

Published Aug 10, 2023 · Updated May 28, 2026

Improper access control in Adobe Acrobat Reader 23.003.20244 and earlier allows remote attackers to execute code via a malicious file. Net-object handling fails to restrict access to a protected JavaScript API, allowing a document to bypass the API blacklist. Opening the file or visiting a malicious page is required, and successful exploitation runs code in the current user's process context; Reader 2020 20.005.30467 and earlier is also affected.

CVSS severity7.8
High
EPSS probability5.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Adobe Acrobat Reader 23.003.20244 and earlier allows remote attackers to execute code via a malicious file. Net-object handling fails to restrict access to a protected JavaScript API, allowing a document to bypass the API blacklist. Opening the file or visiting a malicious page is required, and successful exploitation runs code in the current user's process context; Reader 2020 20.005.30467 and earlier is also affected.

The record

CVE
CVE-2023-29320
Published
Aug 10, 2023
Updated
May 28, 2026
Vendor
Adobe
Product
Adobe Acrobat Reader
Classifications
CWE-657, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 10, 2023CVE publishedPublication date reported by the CVE source.
  2. May 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=23.003.20244

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Adobe · Adobe Acrobat Readerversion=0 <=23.003.20244

Published CVSS scores

8.6Adobe PSIRTCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
7.8Adobe Systems Incorporated CVE recordCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-657Violation of Secure Design Principles
T1204.002Malicious File

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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