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Common Weakness Enumeration

CWE-416

Allowed

Use After Free

Abstraction: Variant · Status: Stable

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

10902 vulnerabilities reference this CWE, most recent first.

CVE-2026-20506 (GCVE-0-2026-20506)

Vulnerability from cvelistv5 – Published: 2026-09-07 01:57 – Updated: 2026-09-08 03:55
VLAI
Summary
In Audio HAL, there is a possible escalation of privilege due to use after free. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11191981; Issue ID: MSV-9126.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-07 00:00 UTC
CWE
Impacted products
Vendor Product Version
MediaTek, Inc. MediaTek chipset Affected: MT2718
Affected: MT6739
Affected: MT6761
Affected: MT6765
Affected: MT6768
Affected: MT6769
Affected: MT6781
Affected: MT6789
Affected: MT6833
Affected: MT6835
Affected: MT6853
Affected: MT6855
Affected: MT6858
Affected: MT6877
Affected: MT6878
Affected: MT6879
Affected: MT6881
Affected: MT6883
Affected: MT6885
Affected: MT6886
Affected: MT6889
Affected: MT6893
Affected: MT6895
Affected: MT6897
Affected: MT6899
Affected: MT6983
Affected: MT6985
Affected: MT6989
Affected: MT6991
Affected: MT6993
Affected: MT8126
Affected: MT8168
Affected: MT8171
Affected: MT8186
Affected: MT8188
Affected: MT8189
Affected: MT8196
Affected: MT8321
Affected: MT8365
Affected: MT8367
Affected: MT8385
Affected: MT8390
Affected: MT8391
Affected: MT8668
Affected: MT8676
Affected: MT8678
Affected: MT8696
Affected: MT8755
Affected: MT8766
Affected: MT8766R
Affected: MT8768
Affected: MT8771
Affected: MT8775
Affected: MT8781
Affected: MT8786
Affected: MT8788E
Affected: MT8791T
Affected: MT8792
Affected: MT8796
Affected: MT8797
Affected: MT8798
Affected: MT8799
Affected: MT8873
Affected: MT8883
Affected: MT8893
Affected: MT8910
Create a notification for this product.
Show details on NVD website

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              "version": "MT6768"
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              "version": "MT6769"
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            {
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            },
            {
              "status": "affected",
              "version": "MT6883"
            },
            {
              "status": "affected",
              "version": "MT6885"
            },
            {
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            },
            {
              "status": "affected",
              "version": "MT6889"
            },
            {
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              "version": "MT6893"
            },
            {
              "status": "affected",
              "version": "MT6895"
            },
            {
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              "version": "MT6897"
            },
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              "version": "MT6899"
            },
            {
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              "version": "MT6983"
            },
            {
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              "version": "MT6985"
            },
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              "version": "MT6989"
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              "version": "MT6993"
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              "version": "MT8126"
            },
            {
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              "version": "MT8168"
            },
            {
              "status": "affected",
              "version": "MT8171"
            },
            {
              "status": "affected",
              "version": "MT8186"
            },
            {
              "status": "affected",
              "version": "MT8188"
            },
            {
              "status": "affected",
              "version": "MT8189"
            },
            {
              "status": "affected",
              "version": "MT8196"
            },
            {
              "status": "affected",
              "version": "MT8321"
            },
            {
              "status": "affected",
              "version": "MT8365"
            },
            {
              "status": "affected",
              "version": "MT8367"
            },
            {
              "status": "affected",
              "version": "MT8385"
            },
            {
              "status": "affected",
              "version": "MT8390"
            },
            {
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              "version": "MT8391"
            },
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              "version": "MT8668"
            },
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              "version": "MT8676"
            },
            {
              "status": "affected",
              "version": "MT8678"
            },
            {
              "status": "affected",
              "version": "MT8696"
            },
            {
              "status": "affected",
              "version": "MT8755"
            },
            {
              "status": "affected",
              "version": "MT8766"
            },
            {
              "status": "affected",
              "version": "MT8766R"
            },
            {
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              "version": "MT8768"
            },
            {
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              "version": "MT8771"
            },
            {
              "status": "affected",
              "version": "MT8775"
            },
            {
              "status": "affected",
              "version": "MT8781"
            },
            {
              "status": "affected",
              "version": "MT8786"
            },
            {
              "status": "affected",
              "version": "MT8788E"
            },
            {
              "status": "affected",
              "version": "MT8791T"
            },
            {
              "status": "affected",
              "version": "MT8792"
            },
            {
              "status": "affected",
              "version": "MT8796"
            },
            {
              "status": "affected",
              "version": "MT8797"
            },
            {
              "status": "affected",
              "version": "MT8798"
            },
            {
              "status": "affected",
              "version": "MT8799"
            },
            {
              "status": "affected",
              "version": "MT8873"
            },
            {
              "status": "affected",
              "version": "MT8883"
            },
            {
              "status": "affected",
              "version": "MT8893"
            },
            {
              "status": "affected",
              "version": "MT8910"
            }
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CVE-2026-20473 (GCVE-0-2026-20473)

Vulnerability from cvelistv5 – Published: 2026-08-03 02:05 – Updated: 2026-08-05 03:56
VLAI
Summary
In display, there is a possible memory corruption due to use after free. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11019722; Issue ID: MSV-7759.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-04 00:00 UTC
CWE
Impacted products
Vendor Product Version
MediaTek, Inc. MediaTek chipset Affected: MT6991
Affected: MT6993
Affected: MT8126
Affected: MT8171
Affected: MT8188
Affected: MT8189
Affected: MT8367
Affected: MT8668
Affected: MT8676
Affected: MT8678
Affected: MT8766
Affected: MT8768
Affected: MT8781
Affected: MT8786
Affected: MT8791T
Affected: MT8799
Affected: MT8910
Create a notification for this product.
Show details on NVD website

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              "status": "affected",
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            },
            {
              "status": "affected",
              "version": "MT8766"
            },
            {
              "status": "affected",
              "version": "MT8768"
            },
            {
              "status": "affected",
              "version": "MT8781"
            },
            {
              "status": "affected",
              "version": "MT8786"
            },
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              "status": "affected",
              "version": "MT8791T"
            },
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CVE-2026-20443 (GCVE-0-2026-20443)

Vulnerability from cvelistv5 – Published: 2026-03-02 08:39 – Updated: 2026-03-30 13:06
VLAI
Summary
In display, there is a possible memory corruption due to use after free. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10436998; Issue ID: MSV-5722.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-02 00:00 UTC
CWE
Impacted products
Vendor Product Version
MediaTek, Inc. MediaTek chipset Affected: MT6739
Affected: MT6761
Affected: MT6765
Affected: MT6768
Affected: MT6781
Affected: MT6789
Affected: MT6833
Affected: MT6835
Affected: MT6853
Affected: MT6855
Affected: MT6877
Affected: MT6878
Affected: MT6879
Affected: MT6883
Affected: MT6885
Affected: MT6886
Affected: MT6889
Affected: MT6893
Affected: MT6895
Affected: MT6897
Affected: MT6899
Affected: MT6983
Affected: MT6985
Affected: MT6989
Affected: MT6991
Affected: MT6993
Affected: MT8186
Affected: MT8188
Affected: MT8196
Affected: MT8667
Affected: MT8673
Affected: MT8676
Affected: MT8678
Affected: MT8765
Affected: MT8766
Affected: MT8768
Affected: MT8771
Affected: MT8781
Affected: MT8791T
Affected: MT8792
Affected: MT8793
Affected: MT8795T
Affected: MT8796
Affected: MT8798
Affected: MT8873
Affected: MT8883
Create a notification for this product.
Show details on NVD website

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            },
            {
              "status": "affected",
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            },
            {
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              "version": "MT6768"
            },
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              "version": "MT6781"
            },
            {
              "status": "affected",
              "version": "MT6789"
            },
            {
              "status": "affected",
              "version": "MT6833"
            },
            {
              "status": "affected",
              "version": "MT6835"
            },
            {
              "status": "affected",
              "version": "MT6853"
            },
            {
              "status": "affected",
              "version": "MT6855"
            },
            {
              "status": "affected",
              "version": "MT6877"
            },
            {
              "status": "affected",
              "version": "MT6878"
            },
            {
              "status": "affected",
              "version": "MT6879"
            },
            {
              "status": "affected",
              "version": "MT6883"
            },
            {
              "status": "affected",
              "version": "MT6885"
            },
            {
              "status": "affected",
              "version": "MT6886"
            },
            {
              "status": "affected",
              "version": "MT6889"
            },
            {
              "status": "affected",
              "version": "MT6893"
            },
            {
              "status": "affected",
              "version": "MT6895"
            },
            {
              "status": "affected",
              "version": "MT6897"
            },
            {
              "status": "affected",
              "version": "MT6899"
            },
            {
              "status": "affected",
              "version": "MT6983"
            },
            {
              "status": "affected",
              "version": "MT6985"
            },
            {
              "status": "affected",
              "version": "MT6989"
            },
            {
              "status": "affected",
              "version": "MT6991"
            },
            {
              "status": "affected",
              "version": "MT6993"
            },
            {
              "status": "affected",
              "version": "MT8186"
            },
            {
              "status": "affected",
              "version": "MT8188"
            },
            {
              "status": "affected",
              "version": "MT8196"
            },
            {
              "status": "affected",
              "version": "MT8667"
            },
            {
              "status": "affected",
              "version": "MT8673"
            },
            {
              "status": "affected",
              "version": "MT8676"
            },
            {
              "status": "affected",
              "version": "MT8678"
            },
            {
              "status": "affected",
              "version": "MT8765"
            },
            {
              "status": "affected",
              "version": "MT8766"
            },
            {
              "status": "affected",
              "version": "MT8768"
            },
            {
              "status": "affected",
              "version": "MT8771"
            },
            {
              "status": "affected",
              "version": "MT8781"
            },
            {
              "status": "affected",
              "version": "MT8791T"
            },
            {
              "status": "affected",
              "version": "MT8792"
            },
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CVE-2026-20442 (GCVE-0-2026-20442)

Vulnerability from cvelistv5 – Published: 2026-03-02 08:39 – Updated: 2026-03-30 13:05
VLAI
Summary
In display, there is a possible system crash due to use after free. This could lead to local denial of service if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10436998; Issue ID: MSV-5723.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-02 13:25 UTC
CWE
Impacted products
Vendor Product Version
MediaTek, Inc. MediaTek chipset Affected: MT6739
Affected: MT6761
Affected: MT6765
Affected: MT6768
Affected: MT6781
Affected: MT6789
Affected: MT6833
Affected: MT6835
Affected: MT6853
Affected: MT6855
Affected: MT6877
Affected: MT6878
Affected: MT6879
Affected: MT6883
Affected: MT6885
Affected: MT6886
Affected: MT6889
Affected: MT6893
Affected: MT6895
Affected: MT6897
Affected: MT6899
Affected: MT6983
Affected: MT6985
Affected: MT6989
Affected: MT6991
Affected: MT6993
Affected: MT8186
Affected: MT8188
Affected: MT8196
Affected: MT8667
Affected: MT8673
Affected: MT8676
Affected: MT8678
Affected: MT8765
Affected: MT8766
Affected: MT8768
Affected: MT8771
Affected: MT8781
Affected: MT8791T
Affected: MT8792
Affected: MT8793
Affected: MT8795T
Affected: MT8796
Affected: MT8798
Affected: MT8873
Affected: MT8883
Create a notification for this product.
Show details on NVD website

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CVE-2026-20439 (GCVE-0-2026-20439)

Vulnerability from cvelistv5 – Published: 2026-03-02 08:39 – Updated: 2026-03-30 13:05
VLAI
Summary
In imgsys, there is a possible system crash due to use after free. This could lead to local denial of service if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10431955; Issue ID: MSV-5826.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-02 13:56 UTC
CWE
Impacted products
Vendor Product Version
MediaTek, Inc. MediaTek chipset Affected: MT2718
Affected: MT6899
Affected: MT6991
Affected: MT8678
Affected: MT8793
Create a notification for this product.
Show details on NVD website

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CVE-2026-20437 (GCVE-0-2026-20437)

Vulnerability from cvelistv5 – Published: 2026-03-02 08:39 – Updated: 2026-03-30 13:05
VLAI
Summary
In MAE, there is a possible system crash due to use after free. This could lead to local denial of service if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10431940; Issue ID: MSV-5843.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-02 13:53 UTC
CWE
Impacted products
Vendor Product Version
MediaTek, Inc. MediaTek chipset Affected: MT2718
Affected: MT6899
Affected: MT6991
Affected: MT8678
Affected: MT8793
Create a notification for this product.
Show details on NVD website

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CVE-2026-20414 (GCVE-0-2026-20414)

Vulnerability from cvelistv5 – Published: 2026-02-02 08:15 – Updated: 2026-03-30 13:03
VLAI
Summary
In imgsys, there is a possible escalation of privilege due to use after free. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10362999; Issue ID: MSV-5625.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-03 04:55 UTC
CWE
Impacted products
Vendor Product Version
MediaTek, Inc. MediaTek chipset Affected: MT6897
Affected: MT6989
Affected: MT8196
Affected: MT8678
Affected: MT8766
Affected: MT8768
Affected: MT8786
Affected: MT8796
Create a notification for this product.
Show details on NVD website

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CVE-2026-20411 (GCVE-0-2026-20411)

Vulnerability from cvelistv5 – Published: 2026-02-02 08:15 – Updated: 2026-03-30 13:03
VLAI
Summary
In cameraisp, there is a possible escalation of privilege due to use after free. This could lead to local denial of service if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10351676; Issue ID: MSV-5737.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-03 04:55 UTC
CWE
Impacted products
Vendor Product Version
MediaTek, Inc. MediaTek chipset Affected: MT6878
Affected: MT6879
Affected: MT6881
Affected: MT6886
Affected: MT6895
Affected: MT6897
Affected: MT6899
Affected: MT6983
Affected: MT6985
Affected: MT6989
Affected: MT6991
Affected: MT6993
Affected: MT8168
Affected: MT8188
Affected: MT8195
Affected: MT8365
Affected: MT8370
Affected: MT8390
Affected: MT8395
Affected: MT8666
Affected: MT8667
Affected: MT8673
Affected: MT8676
Affected: MT8793
Create a notification for this product.
Show details on NVD website

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CVE-2026-19666 (GCVE-0-2026-19666)

Vulnerability from cvelistv5 – Published: 2026-09-16 14:02 – Updated: 2026-09-17 17:38
VLAI
Title
Use-after-free in query_addnoqnameproof() via the DNS64 filter64 path
Summary
On a resolver configured to use ``dns64``, if an applicable answer from the authoritative server is malformed in a specific way, the resolver `named` process will exit unexpectedly. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 17:38 UTC
CWE
Assigner
Impacted products
Vendor Product Version
ISC BIND 9 Affected: 9.11.0 , ≤ 9.18.50 (custom)
Affected: 9.20.0 , ≤ 9.20.27 (custom)
Affected: 9.21.0 , ≤ 9.21.25 (custom)
Affected: 9.11.3-S1 , ≤ 9.18.50-S1 (custom)
Affected: 9.20.9-S1 , ≤ 9.20.27-S1 (custom)
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    cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
    cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-16 00:00
Show details on NVD website

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CVE-2026-19662 (GCVE-0-2026-19662)

Vulnerability from cvelistv5 – Published: 2026-09-16 13:50 – Updated: 2026-09-17 18:45
VLAI
Title
qpcache NOQNAME proof use-after-free crashes recursive resolver
Summary
An attacker may be able to cause a `named` resolver to abort. The attack requires inducing the victim resolver to send multiple queries for a DNSSEC-signed zone hosted by an authoritative server under the control of the attacker. If the auth responds with a particular sequence of crafted answers, and those answers arrive in a particular order with particular timing, the `named` resolver will encounter a use-after-free bug, and abort. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.27, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 18:44 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
ISC BIND 9 Affected: 9.11.0 , ≤ 9.18.50 (custom)
Affected: 9.20.0 , ≤ 9.20.27 (custom)
Affected: 9.11.3-S1 , ≤ 9.18.50-S1 (custom)
Affected: 9.20.9-S1 , ≤ 9.20.27-S1 (custom)
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    cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
    cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-16 00:00
Show details on NVD website

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      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "qpcache NOQNAME proof use-after-free crashes recursive resolver",
      "workarounds": [
        {
          "lang": "en",
          "value": "No workarounds known."
        }
      ],
      "x_generator": {
        "engine": "cvelib 1.8.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "404fd4d2-a609-4245-b543-2c944a302a22",
    "assignerShortName": "isc",
    "cveId": "CVE-2026-19662",
    "datePublished": "2026-09-16T13:50:10.432Z",
    "dateReserved": "2026-08-12T20:13:09.206Z",
    "dateUpdated": "2026-09-17T18:45:11.717Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Mitigation
Architecture and Design

Strategy: Language Selection

Choose a language that provides automatic memory management.

Mitigation
Implementation

Strategy: Attack Surface Reduction

When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.

No CAPEC attack patterns related to this CWE.