CVE-2026-25087Network attack vector

Application crash via dangling pre-buffer metadata pointer

Published Feb 17, 2026 · Updated Feb 17, 2026

Use-after-free in Apache Arrow C++ 15.0.0 through 23.0.0 allows attackers to crash an application via a crafted IPC file. With pre-buffering enabled, the IPC file reader mishandles variadic-buffer metadata during multithreaded I/O and writes a shared Buffer pointer through a dangling pointer. Pre-buffering is disabled by default, the affected API is unavailable through language bindings, and the most likely consequence is a service-interrupting crash or memory corruption when untrusted IPC files are ingested.

CVSS severity7.0
High
EPSS probability0.82%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in Apache Arrow C++ 15.0.0 through 23.0.0 allows attackers to crash an application via a crafted IPC file. With pre-buffering enabled, the IPC file reader mishandles variadic-buffer metadata during multithreaded I/O and writes a shared Buffer pointer through a dangling pointer. Pre-buffering is disabled by default, the affected API is unavailable through language bindings, and the most likely consequence is a service-interrupting crash or memory corruption when untrusted IPC files are ingested.

The record

CVE
CVE-2026-25087
Published
Feb 17, 2026
Updated
Feb 17, 2026
Vendor
The Apache Software Foundation
Product
Apache Arrow
Classifications
CWE-416
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 17, 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?

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  1. Affected versionversion=15.0.0 <=23.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache Arrowversion=15.0.0 <=23.0.0

Published CVSS scores

7.0CISA-ADPCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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