FFmpeg up to 9.0.2 PCX decoder pcx_decode_frame uninitialized resource

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k1.31+

Summaryinfo

A vulnerability classified as problematic has been found in FFmpeg up to 9.0.2. This impacts the function pcx_decode_frame of the component PCX decoder. Performing a manipulation results in uninitialized resource. This vulnerability was named CVE-2026-120244. The attack needs to be approached locally. There is no available exploit.

Detailsinfo

A vulnerability was found in FFmpeg up to 9.0.2. It has been classified as problematic. This affects the function pcx_decode_frame of the component PCX decoder. The manipulation with an unknown input leads to a uninitialized resource vulnerability. CWE is classifying the issue as CWE-908. The product uses or accesses a resource that has not been initialized. This is going to have an impact on confidentiality. The summary by CVE is:

FFmpeg 2.1 through 9.0.2 contains a use of uninitialized resource vulnerability in the PCX decoder that allows attackers to leak heap memory through truncated RLE scanlines. Attackers can craft a PCX image whose RLE data ends early, causing pcx_decode_frame() to copy uninitialized av_malloc() buffer contents into visible decoded pixels.

It is possible to read the advisory at code.ffmpeg.org. This vulnerability is uniquely identified as CVE-2026-120244 since 10/31/2026. The exploitability is told to be easy. Attacking locally is a requirement. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.1
VulDB Meta Temp Score: 4.1

VulDB Base Score: 2.8
VulDB Temp Score: 2.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.5
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Uninitialized resource
CWE: CWE-908
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

10/31/2026 CVE reserved
11/01/2026 +1 days Advisory disclosed
11/01/2026 +0 days VulDB entry created
11/01/2026 +0 days VulDB entry last update

Sourcesinfo

Product: ffmpeg.org

Advisory: code.ffmpeg.org
Status: Not defined

CNA: VulnCheck
CVE: CVE-2026-120244 (🔒)

GCVE (CVE): GCVE-0-2026-120244
GCVE (VulDB): GCVE-100-429603

Entryinfo

Created: 11/01/2026 02:08
Changes: 11/01/2026 02:08 (74)
Complete: 🔍
Cache ID: 216::103

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