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CVE-2026-71444— CAI Content Credentials | Integer Underflow (Wrap or Wraparound) (CWE-191)

Quick assessment

Affected
Adobe C2PA Tool
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Adobe C2PA Tool是美国Adobe公司的一款内容来源验证与数据证书工具。 Adobe C2PA Tool c2patool-v0.26.70及之前版本和Adobe Content Credentials Rust SDK c2pa-v0.89.0及之前版本存在数字错误漏洞，该漏洞源于整数下溢（环绕错误），可能导致应用程序崩溃，造成拒绝服务。

CVSS 6.2 · Medium EPSS 0.26% · P16

Affected Version Matrix 4

VendorProduct Version RangeStatus
Adobe C2PA Tool ≤ c2patool-v0.26.70 affected
c2patool-v0.27.11 unaffected
Adobe Content Credentials Rust SDK ≤ c2pa-v0.89.0 affected
c2pa-v0.90.11 unaffected
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I. Basic Information for CVE-2026-71444

Vulnerability Information
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Vulnerability Title
CAI Content Credentials | Integer Underflow (Wrap or Wraparound) (CWE-191)
Source: CVE Program / CVE List V5
Vulnerability Description
CAI Content Credentials is affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue does not require user interaction.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
整数下溢(超界折返)
Source: CVE Program / CVE List V5
Vulnerability Title
Adobe C2PA Tool 数字错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Adobe C2PA Tool是美国Adobe公司的一款内容来源验证与数据证书工具。 Adobe C2PA Tool c2patool-v0.26.70及之前版本和Adobe Content Credentials Rust SDK c2pa-v0.89.0及之前版本存在数字错误漏洞，该漏洞源于整数下溢（环绕错误），可能导致应用程序崩溃，造成拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Adobe C2PA Tool 0 ~ c2patool-v0.26.70 -
Adobe Content Credentials Rust SDK 0 ~ c2pa-v0.89.0 -

II. Public POCs for CVE-2026-71444

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III. Intelligence Information for CVE-2026-71444

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Vendor Advisories for CVE-2026-71444 (1)

Same Patch Batch · Adobe · 2026-08-25 · 38 CVEs total

CVE-2026-76197 10.0 CRITICAL Adobe Campaign Classic (ACC) | Improper Neutralization of Special Elements used in an OS C
CVE-2026-76195 10.0 CRITICAL Adobe Campaign Classic (ACC) | Improper Neutralization of Special Elements used in an OS C
CVE-2026-76193 10.0 CRITICAL Adobe Campaign Classic (ACC) | Server-Side Request Forgery (SSRF) (CWE-918)
CVE-2026-48417 7.8 HIGH Substance3D - Sampler | Stack-based Buffer Overflow (CWE-121)
CVE-2026-75750 7.8 HIGH Substance3D - Painter | Heap-based Buffer Overflow (CWE-122)
CVE-2026-48420 7.8 HIGH Substance3D - Sampler | Out-of-bounds Write (CWE-787)
CVE-2026-48422 7.8 HIGH Substance3D - Sampler | Heap-based Buffer Overflow (CWE-122)
CVE-2026-71382 7.8 HIGH Substance3D - Sampler | Out-of-bounds Write (CWE-787)
CVE-2026-48423 7.8 HIGH Substance3D - Sampler | Heap-based Buffer Overflow (CWE-122)
CVE-2026-48418 7.8 HIGH Substance3D - Sampler | Out-of-bounds Write (CWE-787)
CVE-2026-48421 7.8 HIGH Substance3D - Sampler | Out-of-bounds Write (CWE-787)
CVE-2026-48425 7.8 HIGH Substance3D - Sampler | Heap-based Buffer Overflow (CWE-122)
CVE-2026-71399 7.8 HIGH Adobe XD | Buffer Overflow (CWE-120)
CVE-2026-75749 7.8 HIGH Substance3D - Painter | Out-of-bounds Write (CWE-787)
CVE-2026-75770 7.8 HIGH Substance3D - Painter | Out-of-bounds Write (CWE-787)
CVE-2026-75769 7.8 HIGH Substance3D - Painter | Heap-based Buffer Overflow (CWE-122)
CVE-2026-75766 7.8 HIGH Substance3D - Painter | Heap-based Buffer Overflow (CWE-122)
CVE-2026-75767 7.8 HIGH Substance3D - Painter | Heap-based Buffer Overflow (CWE-122)
CVE-2026-75768 7.8 HIGH Substance3D - Painter | Untrusted Search Path (CWE-426)
CVE-2026-48419 7.8 HIGH Substance3D - Sampler | Out-of-bounds Write (CWE-787)

Showing top 20 of 38 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: C2PA Tool
Same vendor: Adobe
Same weakness: CWE-191

V. Comments for CVE-2026-71444

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