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CVE Record

CVE-2014-125021: FFmpeg cmv_process_header memory corruption

A vulnerability was found in FFmpeg 2.0 and classified as problematic. This issue affects the function cmv_process_header. The manipulation leads to memory corruption. The attack may be initiated remotely. It is recommended to apply a patch to fix this issue.

MediumCVSS 5.3Not KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

An old FFmpeg 2.0 flaw can corrupt memory while processing media headers. The public record rates it medium because it is remotely triggerable but only records limited availability impact, not data theft or privilege escalation. Exposure is most likely where FFmpeg 2.0 is used directly or bundled into media upload, transcoding, preview, or scanning services. Risk is higher when services automatically parse remote or user-supplied media. Embedded legacy copies may remain even when system packages are newer. Treat as a moderate legacy exposure issue. It is not KEV-listed and the cited impact is limited, but internet-facing media processing can turn parser crashes into service disruption. Prioritize finding old FFmpeg 2.0 copies and patching them. Mitigation focus: Inventory FFmpeg installations and embedded copies for version 2.0.; Apply the vendor patch or upgrade through trusted FFmpeg package channels.; Check vendor guidance if fixed release mapping is unclear..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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ATT&CK lookup starting points

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cwe · low confidence lookup

CWE-119: Exact CWE lookup

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cve · low confidence lookup

CVE-2014-125021 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.3 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
5.3CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L3.91.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

5.3Medium
CVSS 3.1 vector shape for CVE-2014-125021Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
unspecifiedFFmpeg2.0Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-119 · source CWE mapping

Improper Restriction of Operations within the Bounds of a Memory Buffer

Improper Restriction of Operations within the Bounds of a Memory Buffer represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.