CVE-2026-120244

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Source
https://cve.org/CVERecord?id=CVE-2026-120244
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-120244.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-120244
Downstream
CGA (2)
DEBIAN (1)
ECHO (1)
UBUNTU (1)
Published
2026-11-01T00:57:10Z
Modified
2026-11-04T07:05:51Z
Severity
  • 6.8 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
FFmpeg 2.1 through 9.0.2 Uninitialized Memory Leak via PCX Decoder
Details

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.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-908"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/120xxx/CVE-2026-120244.json"
}
References

Affected packages

Git / github.com/ffmpeg/ffmpeg

Affected ranges

Type
GIT
Repo
https://github.com/ffmpeg/ffmpeg
Events
Introduced
a37e42b3ee4226a4d2c69cd4eebf9c81e6df8ea5
Fixed
ecd5dfc308a164757e7f25b1afefd8db21b43cf9
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "2.1"
                },
                {
                    "last_affected": "9.0.2"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        },
        {
            "range": [
                {
                    "fixed": "ecd5dfc308a164757e7f25b1afefd8db21b43cf9"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

n2.*
n2.1-dev
n2.2-dev
n2.3-dev
n2.4-dev
n2.5-dev
n2.6-dev
n2.7-dev
n2.8-dev
n2.9-dev
n3.*
n3.1-dev
n3.2-dev
n3.3-dev
n3.4-dev
n3.5-dev
n4.*
n4.1-dev
n4.2-dev
n4.3-dev
n4.4-dev
n4.5-dev
n5.*
n5.1-dev
n5.2-dev
n6.*
n6.1-dev
n6.2-dev
n7.*
n7.1-dev
n7.2-dev
n8.*
n8.1-dev
n8.2-dev
n9.*
n9.1-dev

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-120244.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "28309566557659305786855465215661638433",
                "336908627674443671486431672133900445266",
                "84347106031839645857702824454528530207",
                "245139230802263922967680536314784739310",
                "273614799666253721657182315054597400880"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-120244-1f3646f0",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/ffmpeg/ffmpeg/commit/ecd5dfc308a164757e7f25b1afefd8db21b43cf9",
        "target": {
            "file": "libavcodec/pcx.c"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "251657604861667749001745439364783281465",
            "length": 522
        },
        "id": "CVE-2026-120244-af3f4c12",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/ffmpeg/ffmpeg/commit/ecd5dfc308a164757e7f25b1afefd8db21b43cf9",
        "target": {
            "file": "libavcodec/pcx.c",
            "function": "pcx_rle_decode"
        }
    }
]
vanir_signatures_modified 
"2026-11-04T07:05:51Z"