CVE-2026-125103

FFmpeg through 9.0.2 Uninitialized Heap Disclosure via MLZ Decompressor in ALS Decoder

FFmpeg through 9.0.2 contains an information disclosure vulnerability in ff_mlz_decompression() in libavcodec/mlz.c, which accepts string codes beyond the dictionary's next free code. Attackers can supply a crafted MPEG-4 ALS file with malformed initial or out-of-range codes to copy uninitialized heap bytes into decoded audio output.

CVSS 4.0 · 4.8 Medium EPSS < 1% KEV · Not listed

Vendors

Ffmpeg

Products

Ffmpeg

CVE-2026-125098

FFmpeg through 9.0.2 WebP Decoder Information Disclosure via Short ALPH Chunk

FFmpeg through 9.0.2 contains an information disclosure vulnerability in vp8_lossy_decode_alpha() in libavcodec/webp.c that leaves alpha plane memory uninitialized for short uncompressed ALPH chunks. Attackers can supply a crafted WebP image whose ALPH chunk is shorter than width * height to disclose stale pixel data from previously decoded frames.

CVSS 4.0 · 4.8 Medium EPSS < 1% KEV · Not listed

Vendors

Ffmpeg

Products

Ffmpeg

CVE-2026-124486

OpenEMR before 8.3.0 Missing Authorization in Classic Document Controller

OpenEMR before 8.3.0 contains a missing authorization vulnerability in the classic document controller that allows low-privilege authenticated users to recategorize other patients' documents. Attackers can invoke move_action_process to move a document into a patients|demo category, then retrieve it with an empty patient_id to exfiltrate PHI and tamper with charts.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed

Vendors

Open-emr

Products

Openemr

CVE-2026-125212

FFmpeg through 9.0.2 Heap Buffer Overflow via VideoToolbox Encoder

FFmpeg through 9.0.2 contains a heap buffer overflow vulnerability in libavcodec/videotoolboxenc.c that copies frames larger than encoder dimensions into undersized CVPixelBuffers. Attackers can supply crafted input whose resolution grows mid-stream, transcoded with VideoToolbox encoders without rescaling, to crash the application or corrupt memory.

CVSS 4.0 · 7.3 High EPSS < 1% KEV · Not listed

Vendors

Ffmpeg

Products

Ffmpeg

CVE-2026-125196

FFmpeg through 9.0.2 Heap Buffer Overflow via liboapv APV Encoder Wrapper

FFmpeg through 9.0.2 contains a heap buffer overflow vulnerability in liboapve_encode() in libavcodec/liboapvenc.c that allows attackers to corrupt heap memory by supplying frames larger than the configured encoder dimensions. Attackers can craft videos whose resolution changes mid-stream so that transcoding to APV without rescaling writes attacker-controlled pixel data past the imgb plane buffers.

CVSS 4.0 · 7.3 High EPSS < 1% KEV · Not listed

Vendors

Ffmpeg

Products

Ffmpeg

CVE-2026-125171

FFmpeg through 9.0.2 Out-of-Bounds Read in Musepack SV7 Decoder via mpc7.c

FFmpeg through 9.0.2 contains an out-of-bounds read vulnerability in the Musepack SV7 decoder because mpc7_decode_init() does not validate lastframelen against MPC_FRAME_SIZE. Attackers can supply a crafted Musepack SV7 file declaring an oversized final frame, causing consumers of decoded frames to read past the audio buffer, leading to crashes or heap memory disclosure.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed

Vendors

Ffmpeg

Products

Ffmpeg

CVE-2026-125267

FFmpeg before 8.1.3 and 9.x before 9.0.2 Heap Out-of-Bounds Write via APAC Decoder

FFmpeg before 8.1.3 and 9.x before 9.0.2 contains a heap out-of-bounds write vulnerability in the APAC decoder in libavcodec/apac.c caused by an unreset bitstream index. Attackers can supply a crafted APAC file whose growing bitstream_index triggers an integer overflow, bypassing the reallocation check so memcpy() corrupts heap memory or crashes the application.

CVSS 4.0 · 8.5 High EPSS < 1% KEV · Not listed

Vendors

Ffmpeg

Products

Ffmpeg

CVE-2026-125243

FFmpeg through 9.0.2 Uninitialized Memory Disclosure via JPEG-LS Decoder

FFmpeg through 9.0.2 contains an uninitialized memory disclosure vulnerability in ff_jpegls_decode_picture() in libavcodec/jpeglsdec.c, which decodes 16-bit line-interleaved JPEG-LS scans as 8-bit samples. Attackers can supply a crafted single-component JPEG-LS image with the ILV byte set to 1, causing decoded GRAY16 frames to expose leftover heap memory.

CVSS 4.0 · 4.8 Medium EPSS < 1% KEV · Not listed

Vendors

Ffmpeg

Products

Ffmpeg

CVE-2026-125239

FFmpeg through 9.0.2 Heap Buffer Overflow via HEVC DXVA Tile Parameters

FFmpeg through 9.0.2 contains a heap buffer overflow vulnerability in ff_dxva2_hevc_fill_picture_parameters() that allows attackers to corrupt memory via unbounded non-uniform tile counts. Attackers can supply crafted HEVC bitstreams with many non-uniformly spaced tiles to write controlled 16-bit values past fixed-size DXVA arrays during DXVA2, D3D11VA, or D3D12VA decoding on Windows.

CVSS 4.0 · 7.3 High EPSS < 1% KEV · Not listed

Vendors

Ffmpeg

Products

Ffmpeg

CVE-2026-125235

FFmpeg through 9.0.2 Heap Overflow via QSV Encoder submit_frame()

FFmpeg through 9.0.2 contains a heap overflow vulnerability in libavcodec/qsvenc.c that allows attackers to corrupt memory by reusing an undersized pooled QSVFrame buffer when input dimensions increase. Attackers can supply crafted input whose resolution grows mid-stream, transcoded with Intel Quick Sync encoders without rescaling, to crash the application or corrupt heap memory.

CVSS 4.0 · 7.3 High EPSS < 1% KEV · Not listed

Vendors

Ffmpeg

Products

Ffmpeg

CVE-2026-125227

FFmpeg through 9.0.2 Heap Buffer Overflow via cbs_jpeg_write_scan Integer Overflow

FFmpeg through 9.0.2 contains an integer overflow in cbs_jpeg_write_scan() in libavcodec/cbs_jpeg.c that causes a heap buffer overflow on 32-bit builds. Attackers can supply a crafted MJPEG/JPEG stream with a scan of 512 MiB or more, processed by CBS bitstream filters like filter_units, to corrupt the heap or crash the application.

CVSS 4.0 · 7.3 High EPSS < 1% KEV · Not listed

Vendors

Ffmpeg

Products

Ffmpeg

CVE-2026-125219

FFmpeg through 9.0.2 Heap Buffer Overflow via HEVC VDPAU Tile Arrays

FFmpeg through 9.0.2 contains a heap buffer overflow vulnerability in vdpau_hevc_start_frame() in libavcodec/vdpau_hevc.c that copies unbounded PPS tile counts into fixed-size VDPAU arrays. Attackers can supply crafted HEVC bitstreams with excessive tile columns or rows to write controlled 16-bit values past heap-allocated hwaccel data, corrupting memory in applications using VDPAU decoding.

CVSS 4.0 · 7.3 High EPSS < 1% KEV · Not listed

Vendors

Ffmpeg

Products

Ffmpeg

CVE-2026-125175

FFmpeg through 9.0.2 Information Disclosure via Flash Screen Video Decoder

FFmpeg through 9.0.2 contains an information disclosure vulnerability in flashsv_decode_block() in libavcodec/flashsv.c that copies uninitialized heap memory into decoded frames when inflate output is short. Attackers can supply a crafted FLV with an FSV1 stream whose zlib block data decompresses short, then recover heap contents from the decoded or re-encoded output.

CVSS 4.0 · 4.8 Medium EPSS < 1% KEV · Not listed

Vendors

Ffmpeg

Products

Ffmpeg

CVE-2026-125102

FFmpeg through 9.0.2 TAK Decoder Uninitialized Memory Disclosure via takdec.c

FFmpeg through 9.0.2 contains an uninitialized memory disclosure vulnerability in tak_decode_frame() in libavcodec/takdec.c that fails to verify multichannel decorrelation lists cover every channel. Attackers can supply crafted multichannel TAK files omitting channels from the list, causing undecoded sample buffers to leak heap memory through decoded audio.

CVSS 4.0 · 4.8 Medium EPSS < 1% KEV · Not listed

Vendors

Ffmpeg

Products

Ffmpeg

CVE-2026-124490

OpenEMR before 8.3.0 Arbitrary File Read/Write via oe-module-faxsms disposeDocument

OpenEMR before 8.3.0 contains a path traversal vulnerability in the RingCentral RCFaxClient disposeDocument() method of oe-module-faxsms that allows authenticated attackers to read and write arbitrary files via the file_path parameter. Attackers can use action=download to read credentials and source code, or action=setup with base64 content to write web-executable files for code execution.

CVSS 4.0 · 9.4 Critical EPSS < 1% KEV · Not listed

Vendors

Open-emr

Products

Openemr

CVE-2026-124482

OpenEMR before 8.4.0 Cross-Patient PHI Exfiltration via SMART Patient Launch

OpenEMR before 8.4.0 contains an authorization bypass allowing low-privileged SMART standalone-launch users to bind arbitrary patient UUIDs into the OAuth token context. Attackers with only the patients|demo ACL can select a victim during authorization and read that patient's clinical notes and documents through patient-scoped DocumentReference and Binary FHIR endpoints.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed

Vendors

Open-emr

Products

Openemr

CVE-2026-124478

OpenEMR before 8.3.0 Missing Authorization via addRecall in save.php

OpenEMR before 8.3.0 contains a missing authorization vulnerability in the addRecall action of /interface/main/messages/save.php that allows low-privileged authenticated users to modify arbitrary patients' recall data. Attackers can submit a crafted new_pid with recall, contact, provider, facility, and notification preference fields to overwrite records of patients they cannot access.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed

Vendors

Open-emr

Products

Openemr

CVE-2026-124456

OpenEMR before 8.3.0 Missing Authorization and IDOR in Prior-Authorizations Module

OpenEMR before 8.3.0 contains missing authorization and insecure direct object reference vulnerabilities in the oe-module-prior-authorizations module that allow authenticated low-privilege users to access and modify other patients' records. Attackers can request public/reports/list_report.php to view all patients' names, MRNs, insurance and prior-auth data, or submit arbitrary id values to public/index.php to overwrite other patients' prior-authorization records.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed

Vendors

Open-emr

Products

Openemr

CVE-2026-124451

OpenEMR before 8.4.0 Authorization Bypass via checkUserHasAccessToPatient in SMART on FHIR

OpenEMR before 8.4.0 contains an authorization bypass vulnerability in its SMART on FHIR implementation because checkUserHasAccessToPatient() in BearerTokenAuthorizationStrategy.php unconditionally returns true. Authenticated users or malicious SMART apps can manipulate token launch context to bind requests to arbitrary patient UUIDs, gaining unauthorized read/write access to other patients' FHIR resources.

CVSS 4.0 · 6 Medium EPSS < 1% KEV · Not listed

Vendors

Open-emr

Products

Openemr

CVE-2026-124447

OpenEMR before 8.3.0 IDOR via OnsitePortalActivityController Update Endpoint

OpenEMR before 8.3.0 contains an insecure direct object reference vulnerability in OnsitePortalActivityController::Update() that checks the request's patientId instead of the stored record's owner. Authenticated portal patients can send PUT requests to the onsiteportalactivity API with another patient's activity id and their own patientId to disclose tableArgs and checksum data, overwrite narratives and status, and take ownership of the record.

CVSS 4.0 · 8.6 High EPSS < 1% KEV · Not listed

Vendors

Open-emr Openemr

Products

Openemr Openemr