CVE-2026-71444Hinoki check available

Local application crash

Published Aug 25, 2026 · Updated Aug 27, 2026

Integer underflow in Adobe C2PA Tool 0.26.70 and earlier and Rust SDK 0.89.0 and earlier allows local users to crash applications. Adobe has not published the affected component, arithmetic operation, or crafted input field that triggers the underflow. Exploitation requires local delivery or processing of attacker-controlled content, needs no user interaction, and interrupts only the affected application.

CVSS severity6.2
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
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Summary

What happened

Integer underflow in Adobe C2PA Tool 0.26.70 and earlier and Rust SDK 0.89.0 and earlier allows local users to crash applications. Adobe has not published the affected component, arithmetic operation, or crafted input field that triggers the underflow. Exploitation requires local delivery or processing of attacker-controlled content, needs no user interaction, and interrupts only the affected application.

The record

CVE
CVE-2026-71444
Published
Aug 25, 2026
Updated
Aug 27, 2026
Vendor
Adobe
Product
C2PA Tool
Classifications
CWE-191, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 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 <=c2patool-v0.26.70

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Adobe · C2PA Toolversion=0 <=c2patool-v0.26.70
Adobe · Content Credentials Rust SDKversion=0 <=c2pa-v0.89.0

Published CVSS scores

6.2AdobeCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/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-191Integer Underflow (Wrap or Wraparound)
T1499.004Application or System Exploitation

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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