CVE-2014-125004

Application crash via unchecked VMNC rectangles

Published Jun 18, 2022 · Updated Apr 15, 2025

Out-of-bounds write in FFmpeg 2.0 allows context-dependent attackers to crash media-processing applications via crafted VMNC video. decode_hextile in libavcodec/vmnc.c passes attacker-controlled rectangle coordinates and dimensions to paint_rect without first checking that the rectangle fits inside the decoded picture. The victim must open or otherwise process the crafted video; the published impact is a crash with no reported data disclosure or modification.

CVSS severity5.5
Medium
EPSS probability0.68%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in FFmpeg 2.0 allows context-dependent attackers to crash media-processing applications via crafted VMNC video. decode_hextile in libavcodec/vmnc.c passes attacker-controlled rectangle coordinates and dimensions to paint_rect without first checking that the rectangle fits inside the decoded picture. The victim must open or otherwise process the crafted video; the published impact is a crash with no reported data disclosure or modification.

The record

CVE
CVE-2014-125004
Published
Jun 18, 2022
Updated
Apr 15, 2025
Vendor
FFmpeg
Product
FFmpeg
Classifications
CWE-787, CWE-119, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 18, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 15, 2025Record 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=2.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

FFmpeg · FFmpegversion=2.0

Published CVSS scores

4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:N/A:P
5.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/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-787Out-of-bounds Write
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1204.002User Execution: Malicious File

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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