CVE-2026-25087

HIGHNVD 7.07.0—
EchelonGraph scoreMEDIUM confidence

Score 7.0 from GitHub Security Advisory (severity: HIGH) published 2026-02-17. NVD baseline CVSS 7.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.0
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.0Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Use After Free vulnerability in Apache Arrow C++.

This issue affects Apache Arrow C++ from 15.0.0 through 23.0.0. It can be triggered when reading an Arrow IPC file (but not an IPC stream) with pre-buffering enabled, if the IPC file contains data with variadic buffers (such as Binary View and String View data). Depending on the number of variadic buffers in a record batch column and on the temporal sequence of multi-threaded IO, a write to a dangling pointer could occur. The value (a std::shared_ptr object) that is written to the dangling pointer is not under direct control of the attacker.

Pre-buffering is disabled by default but can be enabled using a specific C++ API call (RecordBatchFileReader::PreBufferMetadata). The functionality is not exposed in language bindings (Python, Ruby, C GLib), so these bindings are not vulnerable.

The most likely consequence of this issue would be random crashes or memory corruption when reading specific kinds of IPC files. If the application allows ingesting IPC files from untrusted sources, this could plausibly be exploited for denial of service. Inducing more targeted kinds of misbehavior (such as confidential data extraction from the running process) depends on memory allocation and multi-threaded IO temporal patterns that are unlikely to be easily controlled by an attacker.

Advice for users of Arrow C++:

  • check whether you enable pre-buffering on the IPC file reader (using RecordBatchFileReader::PreBufferMetadata)
  • if so, either disable pre-buffering (which may have adverse performance consequences), or switch to Arrow 23.0.1 which is not vulnerable

CVSS v3
7.0
EG Score
7.0(medium)
EPSS
52.7%
KEV
Not listed

Published

February 17, 2026

Last Modified

March 11, 2026

References (3)

Vendor Advisories for CVE-2026-25087(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
pyarrow15.0.0 ... 23.0.0 (14 versions)23.0.1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 14× in last 7d / 52× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-18 10:04 UTCEPSS rescore
  2. 2026-07-18 10:04 UTCEPSS rescore
  3. 2026-07-17 13:59 UTCOSV refresh
  4. 2026-07-16 17:03 UTCEPSS rescore
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  1. 2026-07-04 06:31 UTCEPSS rescore
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  4. 2026-06-30 23:22 UTCEPSS rescore
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  6. 2026-06-29 14:06 UTCEPSS rescore
  7. 2026-06-29 12:02 UTCOSV refresh
  8. 2026-06-28 14:07 UTCEPSS rescore
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  42. 2026-06-07 15:25 UTCEPSS rescore
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  45. 2026-06-06 13:47 UTCEPSS rescore
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  62. 2026-05-29 13:47 UTCEG score recompute
  63. 2026-05-29 13:47 UTCGHSA enrichment
  64. 2026-05-29 13:44 UTCEPSS rescore
  65. 2026-05-29 13:44 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-25087?
CVE-2026-25087 is a high vulnerability published on February 17, 2026. Use After Free vulnerability in Apache Arrow C++. This issue affects Apache Arrow C++ from 15.0.0 through 23.0.0. It can be triggered when reading an Arrow IPC file (but not an IPC stream) with pre-buffering enabled, if the IPC file contains data with variadic buffers (such as Binary View and…
When was CVE-2026-25087 disclosed?
CVE-2026-25087 was first published in the National Vulnerability Database on February 17, 2026, with the most recent update on March 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-25087 actively exploited?
CVE-2026-25087 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 52.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-25087?
CVE-2026-25087 has a CVSS v3 base score of 7.0 (NVD).
How do I remediate CVE-2026-25087?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-25087, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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