CVE-2014-125017

Memory corruption via excessive RPZA block count

Published Jun 18, 2022 · Updated Apr 15, 2025

Out-of-bounds write in FFmpeg 2.0 allows context-dependent attackers to corrupt memory through a crafted RPZA video stream. In libavcodec/rpza.c, rpza_decode_stream trusts an encoded block count that can exceed the frame's remaining blocks, so decoding writes pixels beyond the allocated frame buffer. Processing attacker-controlled RPZA media is required; public records establish invalid writes but do not establish code execution or data disclosure.

CVSS severity7.8
High
EPSS probability0.53%
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 corrupt memory through a crafted RPZA video stream. In libavcodec/rpza.c, rpza_decode_stream trusts an encoded block count that can exceed the frame's remaining blocks, so decoding writes pixels beyond the allocated frame buffer. Processing attacker-controlled RPZA media is required; public records establish invalid writes but do not establish code execution or data disclosure.

The record

CVE
CVE-2014-125017
Published
Jun 18, 2022
Updated
Apr 15, 2025
Vendor
FFmpeg
Product
FFmpeg
Classifications
CWE-125, 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?

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  1. Affected versionversion=2.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

FFmpeg · FFmpegversion=2.0

Published CVSS scores

6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P
7.8NIST NVDCVSS: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-125Out-of-bounds Read
T1204.002User Execution: Malicious File

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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