High

Use-After-Free RCE in Adobe Acrobat Reader Annotation Handling

IdentifiersCVE-2026-47915CWE-416· Use After Free

CVE-2026-47915 is a use-after-free vulnerability affecting Adobe Acrobat Reader versions 24.001.30365, 26.001.21651, and earlier. The flaw is reported in Annots.api during handling of Annotation objects. By performing actions in JavaScript within a malicious document or page context, an attacker can trigger reuse of a pointer after it has been freed. This memory corruption condition can be leveraged to achieve arbitrary code execution in the context of the current user/process. Public reporting also associates the issue with ZDI-26-349 and internal identifier ZDI-CAN-29886.

For your environment

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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 context of the current user. Because the vulnerability is a memory corruption flaw, exploitation may allow full compromise of the affected Acrobat Reader process, including theft or modification of data accessible to that user and potential follow-on activity under the user's privileges.

Mitigation

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

Until patches are deployed, avoid opening untrusted or unexpected PDF files or other attacker-supplied content in Acrobat Reader. Because exploitation requires user interaction, enforce safe document-handling practices, restrict opening of suspicious files from untrusted sources, and reduce exposure to malicious web content that could deliver crafted files or trigger document opening workflows.

Remediation

Patch, then assume compromise.

Apply Adobe's security update referenced in bulletin APSB26-63. Upgrade Adobe Acrobat Reader to a version newer than 24.001.30365 and 26.001.21651, as versions at or below those releases are affected.

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

4 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.

4 SOURCESView more in app

No news coverage yet. Advisories and community discussion only.

What this page doesn’t show

The version that knows your environment.

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 activity2

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES

MITRE CVE

cve.org · CVE-2026-47915

NVD

nvd.nist.gov/vuln/detail/CVE-2026-47915

MITRE CWE · CWE-416

Use After Free

Vendor Advisory

helpx.adobe.com/security/products/acrobat/apsb26-63.html