Common Weakness Enumeration

CWE-252

Allowed

Unchecked Return Value

Abstraction: Base · Status: Draft

API response cwe.mitre.org

The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions.

124 vulnerabilities reference this CWE, most recent first.

CVE-2026-125225 (GCVE-0-2026-125225)

Vulnerability from cvelistv5 – Published: 2026-11-09 19:11 – Updated: 2026-11-09 21:06
VLAI
Title
FFmpeg through 9.0.2 NULL Pointer Dereference via aac_adtstoasc Bitstream Filter
Summary
FFmpeg through 9.0.2 contains a NULL pointer dereference vulnerability in aac_adtstoasc_filter() that allows attackers to crash applications via oversized ADTS AAC packets. Attackers can supply a crafted file with a packet over 256 MB, overflowing the bit count so init_get_bits() fails unchecked and get_bits() crashes during MP4, Matroska, FLV or LATM remuxing.
Severity
6.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 20:58 UTC
CWE
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
FFmpeg FFmpeg Affected: 0 , ≤ 9.0.2 (semver)
    cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-28 00:00
Credits
Joshua Rogers (AISLE Research) Michael Niedermayer
Show details on NVD website
To clipboard 

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CVE-2026-125174 (GCVE-0-2026-125174)

Vulnerability from cvelistv5 – Published: 2026-11-09 19:11 – Updated: 2026-11-09 21:06
VLAI
Title
FFmpeg before 8.1.3 and 9.x before 9.0.2 NULL Pointer Dereference via ff_hap_set_chunk_count()
Summary
FFmpeg before 8.1.3 and 9.x before 9.0.2 contains a NULL pointer dereference vulnerability in ff_hap_set_chunk_count() in libavcodec/hap.c, where a shadowed return variable masks reallocation failures. Attackers can supply a crafted Hap video frame with an oversized chunk count so the decoder writes through a NULL chunk table, crashing the application.
Severity
6.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 21:03 UTC
CWE
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
FFmpeg FFmpeg Affected: 0 , < 8.1.3 (custom)
Affected: 9.0 , < 9.0.2 (custom)
    cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
    cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-14 00:00
Credits
Zheng Yu @ Depthfirst Joshua Rogers (AISLE Research) Michael Niedermayer
Show details on NVD website
To clipboard 

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CVE-2026-125072 (GCVE-0-2026-125072)

Vulnerability from cvelistv5 – Published: 2026-11-09 19:10 – Updated: 2026-11-09 21:06
VLAI
Title
FFmpeg through 9.0.2 NULL Pointer Dereference in MPEG Audio Decoder
Summary
FFmpeg through 9.0.2 contains a NULL pointer dereference vulnerability in mp_decode_frame() in libavcodec/mpegaudiodec_template.c because init_get_bits() failure is ignored after a signed integer overflow. Attackers can pass an oversized packet to the mp3adu decoder through the libavcodec API, causing reads through a NULL buffer that crash the process.
Severity
5.7 (Medium)
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
4.7 (Medium)
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 21:04 UTC
CWE
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
FFmpeg FFmpeg Affected: 0 , ≤ 9.0.2 (semver)
    cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-30 00:00
Credits
Joshua Rogers (AISLE Research) Michael Niedermayer
Show details on NVD website
To clipboard 

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CVE-2026-125071 (GCVE-0-2026-125071)

Vulnerability from cvelistv5 – Published: 2026-11-09 19:10 – Updated: 2026-11-09 21:06
VLAI
Title
FFmpeg through 9.0.2 NULL Pointer Dereference in JV Video Decoder
Summary
FFmpeg through 9.0.2 contains a NULL pointer dereference vulnerability in libavcodec/jvdec.c that allows attackers to crash applications by supplying oversized JV video packets. Attackers can pass a roughly 268435460-byte packet through the libavcodec API, overflowing the bit count so decode_frame() reads from a NULL buffer and causes denial of service.
Severity
5.7 (Medium)
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
4.7 (Medium)
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 21:05 UTC
CWE
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
FFmpeg FFmpeg Affected: 0 , ≤ 9.0.2 (semver)
    cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-11-03 00:00
Credits
Joshua Rogers (AISLE Research) Michael Niedermayer
Show details on NVD website
To clipboard 

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CVE-2026-125070 (GCVE-0-2026-125070)

Vulnerability from cvelistv5 – Published: 2026-11-09 19:10 – Updated: 2026-11-09 21:06
VLAI
Title
FFmpeg through 9.0.2 NULL Pointer Dereference in EA TQI Decoder
Summary
FFmpeg through 9.0.2 contains a NULL pointer dereference vulnerability in tqi_decode_frame() in libavcodec/eatqi.c, which ignores init_get_bits() failure after an integer overflow. Attackers can supply a crafted EA file with a pIQT chunk carrying a 2^28-byte payload to crash the process, causing denial of service.
Severity
6.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 21:05 UTC
CWE
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
FFmpeg FFmpeg Affected: 0 , ≤ 9.0.2 (semver)
    cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-11-03 00:00
Credits
Joshua Rogers (AISLE Research) Michael Niedermayer
Show details on NVD website
To clipboard 

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CVE-2026-125069 (GCVE-0-2026-125069)

Vulnerability from cvelistv5 – Published: 2026-11-09 19:10 – Updated: 2026-11-09 21:06
VLAI
Title
FFmpeg through 9.0.2 NULL Pointer Dereference via Motion Pixels Decoder
Summary
FFmpeg through 9.0.2 contains a NULL pointer dereference vulnerability in the Motion Pixels decoder because mp_decode_frame() ignores init_get_bits() failure. Attackers supplying a roughly 2^28-byte packet through the libavcodec API overflow the bit count, causing reads from a NULL buffer that crash the process.
Severity
5.7 (Medium)
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
4.7 (Medium)
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 21:05 UTC
CWE
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
FFmpeg FFmpeg Affected: 0 , ≤ 9.0.2 (semver)
    cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-11-03 00:00
Credits
Joshua Rogers (AISLE Research) Michael Niedermayer
Show details on NVD website
To clipboard 

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CVE-2026-125068 (GCVE-0-2026-125068)

Vulnerability from cvelistv5 – Published: 2026-11-09 19:10 – Updated: 2026-11-09 21:06
VLAI
Title
FFmpeg through 9.0.2 NULL Pointer Dereference in Bink Video Decoder
Summary
FFmpeg through 9.0.2 contains a NULL pointer dereference vulnerability in the Bink video decoder because decode_frame() in libavcodec/bink.c ignores init_get_bits() failure. Attackers can supply a crafted Bink file with a frame of about 2^28 bytes, overflowing the bit count and crashing the process for denial of service.
Severity
6.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 21:05 UTC
CWE
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
FFmpeg FFmpeg Affected: 0 , ≤ 9.0.2 (semver)
    cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-11-03 00:00
Credits
Joshua Rogers (AISLE Research) Michael Niedermayer
Show details on NVD website
To clipboard 

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CVE-2026-125067 (GCVE-0-2026-125067)

Vulnerability from cvelistv5 – Published: 2026-11-09 19:10 – Updated: 2026-11-09 21:07
VLAI
Title
FFmpeg through 9.0.2 VBLE Decoder NULL Pointer Dereference via vble_decode_frame()
Summary
FFmpeg through 9.0.2 contains a NULL pointer dereference vulnerability in vble_decode_frame() in libavcodec/vble.c because it ignores init_get_bits() failure on oversized packets. Attackers can supply a crafted AVI file with a 268435452-byte VBLE frame, causing reads from a NULL bit reader buffer that crash the process.
Severity
6.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 21:06 UTC
CWE
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
FFmpeg FFmpeg Affected: 0 , ≤ 9.0.2 (semver)
    cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-11-03 00:00
Credits
Joshua Rogers (AISLE Research) Michael Niedermayer
Show details on NVD website
To clipboard 

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CVE-2026-125066 (GCVE-0-2026-125066)

Vulnerability from cvelistv5 – Published: 2026-11-09 19:10 – Updated: 2026-11-09 21:07
VLAI
Title
FFmpeg through 9.0.2 NULL Pointer Dereference in CLJR Video Decoder
Summary
FFmpeg through 9.0.2 contains a NULL pointer dereference vulnerability in the Cirrus Logic AccuPak (CLJR) decoder in libavcodec/cljrdec.c because decode_frame() ignores init_get_bits() failure. Attackers can supply a crafted AVI file with a 2^28-byte CLJR frame that overflows the bit count, causing reads from a NULL buffer and crashing the process.
Severity
6.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 21:06 UTC
CWE
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
FFmpeg FFmpeg Affected: 0 , ≤ 9.0.2 (semver)
    cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-11-03 00:00
Credits
Joshua Rogers (AISLE Research) Michael Niedermayer
Show details on NVD website
To clipboard 

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CVE-2026-125065 (GCVE-0-2026-125065)

Vulnerability from cvelistv5 – Published: 2026-11-09 19:10 – Updated: 2026-11-09 21:17
VLAI
Title
FFmpeg through 9.0.2 NULL Pointer Dereference via TGV Decoder eatgv.c
Summary
FFmpeg through 9.0.2 contains a NULL pointer dereference vulnerability in tgv_decode_inter() in libavcodec/eatgv.c that ignores init_get_bits() failure on oversized packets. Attackers can supply a crafted EA file with a kVGT frame followed by an fVGT inter frame with a 2^28-byte compressed block section, crashing the process for denial of service.
Severity
6.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 21:06 UTC
CWE
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
FFmpeg FFmpeg Affected: 0 , ≤ 9.0.2 (semver)
    cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-11-03 00:00
Credits
Joshua Rogers (AISLE Research) Michael Niedermayer
Show details on NVD website
To clipboard 

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Mitigation MIT-53
Implementation

Check the results of all functions that return a value and verify that the value is expected.

Mitigation MIT-56
Implementation

For any pointers that could have been modified or provided from a function that can return NULL, check the pointer for NULL before use. When working with a multithreaded or otherwise asynchronous environment, ensure that proper locking APIs are used to lock before the check, and unlock when it has finished [REF-1484].

Mitigation
Implementation

Ensure that you account for all possible return values from the function.

Mitigation
Implementation

When designing a function, make sure you return a value or throw an exception in case of an error.

No CAPEC attack patterns related to this CWE.

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