CVE-2025-48379

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Source
https://cve.org/CVERecord?id=CVE-2025-48379
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-48379.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-48379
Aliases
Downstream
Related
Published
2025-07-01T18:33:30.687Z
Modified
2026-07-17T20:58:04.672608365Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H CVSS Calculator
Summary
Pillow Vulnerable to Write Buffer Overflow on BCn encoding
Details

Pillow is a Python imaging library. In versions 11.2.0 to before 11.3.0, there is a heap buffer overflow when writing a sufficiently large (>64k encoded with default settings) image in the DDS format due to writing into a buffer without checking for available space. This only affects users who save untrusted data as a compressed DDS image. This issue has been patched in version 11.3.0.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/48xxx/CVE-2025-48379.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-122"
    ]
}
References

Affected packages

Git / github.com/python-pillow/pillow

Affected ranges

Type
GIT
Repo
https://github.com/python-pillow/pillow
Events
Introduced
339bc5db93bd95decf65a59fab273f300db6594d
Fixed
ef98b3510e3e4f14b547762764813d7e5ca3c5a4
Fixed
89f1f4626a2aaf5f3d5ca6437f41def2998fbe09
Database specific 
{
    "cpe": "cpe:2.3:a:python:pillow:11.2.1:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "11.2.1"
        },
        {
            "last_affected": "11.2.1"
        }
    ],
    "source": [
        "CPE_STRING",
        "REFERENCES"
    ]
}

Affected versions

11.*
11.2.1

Database specific

vanir_signatures 
[
    {
        "source": "https://github.com/python-pillow/pillow/commit/ef98b3510e3e4f14b547762764813d7e5ca3c5a4",
        "id": "CVE-2025-48379-9d8639d6",
        "deprecated": false,
        "target": {
            "file": "src/libImaging/BcnEncode.c"
        },
        "signature_type": "Line",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "1460723953953916237000772780993437358",
                "262010335039141647947683660503617336656",
                "58144948068747468342078331403230676652",
                "204231485735867392982528533877261618081"
            ]
        },
        "signature_version": "v1"
    },
    {
        "source": "https://github.com/python-pillow/pillow/commit/ef98b3510e3e4f14b547762764813d7e5ca3c5a4",
        "id": "CVE-2025-48379-d8fe69e0",
        "signature_type": "Function",
        "target": {
            "file": "src/libImaging/BcnEncode.c",
            "function": "ImagingBcnEncode"
        },
        "deprecated": false,
        "digest": {
            "length": 900.0,
            "function_hash": "124770330357352352519384856536618134204"
        },
        "signature_version": "v1"
    }
]
vanir_signatures_modified 
"2026-07-15T01:28:11Z"
source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-48379.json"