CVE-2026-34667

Application crash via undisclosed integer underflow

Published May 12, 2026 · Updated May 12, 2026

Integer underflow in Adobe Content Credentials Rust SDK 0.78.2 and earlier and JS SDK 0.7.0 and earlier allows local attackers to crash applications. Adobe has not disclosed the affected parser locus, the subtraction or related arithmetic operation that underflows, or how crafted input reaches it. Exploitation requires local access but no privileges or user interaction, and the reported consequence is an application crash without confidentiality or integrity impact.

CVSS severity6.2
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer underflow in Adobe Content Credentials Rust SDK 0.78.2 and earlier and JS SDK 0.7.0 and earlier allows local attackers to crash applications. Adobe has not disclosed the affected parser locus, the subtraction or related arithmetic operation that underflows, or how crafted input reaches it. Exploitation requires local access but no privileges or user interaction, and the reported consequence is an application crash without confidentiality or integrity impact.

The record

CVE
CVE-2026-34667
Published
May 12, 2026
Updated
May 12, 2026
Vendor
Adobe
Product
Content Credentials SDK
Classifications
CWE-191, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 12, 2026CVE publishedPublication date reported by the CVE source.
  2. May 12, 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 <=0.7.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Adobe · Content Credentials SDKversion=0 <=0.7.0

Published CVSS scores

6.2Adobe Systems IncorporatedCVSS: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.

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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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