CVE-2026-34680

Application crash via crafted BMFF box size

Published May 12, 2026 · Updated May 12, 2026

Integer overflow in Content Credentials Rust SDK before 0.80.1 and JS SDK before 0.7.1 allows local users to crash apps via crafted BMFF media. The BMFF parser performs overflow-prone size arithmetic on attacker-controlled box metadata, producing invalid offsets that terminate parsing. Local access is required; no privileges or user interaction are needed, and the documented consequence is application termination only.

CVSS severity6.2
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in Content Credentials Rust SDK before 0.80.1 and JS SDK before 0.7.1 allows local users to crash apps via crafted BMFF media. The BMFF parser performs overflow-prone size arithmetic on attacker-controlled box metadata, producing invalid offsets that terminate parsing. Local access is required; no privileges or user interaction are needed, and the documented consequence is application termination only.

The record

CVE
CVE-2026-34680
Published
May 12, 2026
Updated
May 12, 2026
Vendor
Adobe
Product
Content Credentials SDK
Classifications
CWE-190, 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-190Integer Overflow 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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