CVE-2026-28764

Code execution via stalled LXF parser offset

Published May 21, 2026 · Updated May 21, 2026

Heap-based buffer overflow in MediaArea MediaInfoLib 26.01 allows attackers to execute arbitrary code via a crafted LXF file. File_Lxf::Header_Parse subtracts Element_Offset from the wrong zero-initialized Header_Size field, preventing Buffer_Offset from advancing; repeated Element_Begin calls then index beyond the fixed 64-entry Element vector. Exploitation requires an application to parse an attacker-supplied LXF file with user interaction and runs code with that application's privileges.

CVSS severity7.8
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in MediaArea MediaInfoLib 26.01 allows attackers to execute arbitrary code via a crafted LXF file. File_Lxf::Header_Parse subtracts Element_Offset from the wrong zero-initialized Header_Size field, preventing Buffer_Offset from advancing; repeated Element_Begin calls then index beyond the fixed 64-entry Element vector. Exploitation requires an application to parse an attacker-supplied LXF file with user interaction and runs code with that application's privileges.

The record

CVE
CVE-2026-28764
Published
May 21, 2026
Updated
May 21, 2026
Vendor
MediaArea
Product
MediaInfoLib
Classifications
CWE-823, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 21, 2026CVE publishedPublication date reported by the CVE source.
  2. May 21, 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=26.01

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

MediaArea · MediaInfoLibversion=26.01

Published CVSS scores

7.8Cisco TalosCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-823Use of Out-of-range Pointer Offset
T1203Exploitation for Client Execution

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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