High

Out-of-bounds write in Adobe Acrobat and Reader

IdentifiersCVE-2025-43575CWE-787· Out-of-bounds Write

CVE-2025-43575 is an out-of-bounds write vulnerability affecting Adobe Acrobat DC, Adobe Acrobat Reader DC, Acrobat 2024, Acrobat 2020, and Acrobat Reader 2020. Affected versions include Acrobat Reader versions 24.001.30235, 20.005.30763, 25.001.20521 and earlier, with fixed releases including 25.001.20531 on Windows, 25.001.20529 on macOS, 24.001.30254, and 20.005.30774 depending on product branch. The flaw allows memory corruption through a crafted file, which can lead to arbitrary code execution in the context of the current user when the malicious document is opened.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation can result in arbitrary code execution in the security context of the logged-in user. Because the vulnerability is a memory corruption issue, exploitation may permit full compromise of the affected application process, including unauthorized access to data available to that user, modification of user-accessible content, and potential installation or execution of additional payloads with the same privileges.

Mitigation

If you can’t patch tonight, do this now.

Apply vendor updates as soon as possible. Until patching is complete, reduce exposure by limiting users' ability to open untrusted or unsolicited PDF documents, especially files received through email or downloaded from untrusted sources. Use protected document-handling workflows, endpoint controls, and attachment screening to reduce the likelihood of users opening malicious files. Where feasible, operate with least-privilege user accounts to reduce post-exploitation impact.

Remediation

Patch, then assume compromise.

Upgrade affected Adobe Acrobat and Reader installations to the vendor-fixed versions. Specifically, deploy the patched releases for the relevant product branch, including Acrobat/Reader DC 25.001.20531 for Windows or 25.001.20529 for macOS, Acrobat 2024 version 24.001.30254, and Acrobat/Reader 2020 version 20.005.30774 or later. Enterprise administrators should roll out the updates across managed endpoints using standard software deployment processes and verify that unsupported or lagging branches are no longer in use.

PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType

AdobeAcrobatapplication

AdobeAcrobat Dcapplication

AdobeAcrobat Readerapplication

AdobeAcrobat Reader Dcapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

2 SOURCESView more in app

csirt skNews

Jun 13, 2025

Kritické bezpečnostné zraniteľnosti v produktoch Adobe | CSIRT.SK

Out-of-bounds write vulnerability in Adobe Acrobat products that can be exploited for malicious code execution.

adobe-security-bulletinsNews

Jun 10, 2025

Adobe Security Bulletin

A critical out-of-bounds write vulnerability in Adobe Acrobat and Reader that could allow arbitrary code execution.

What this page doesn’t show

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This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.

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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity