Common Weakness Enumeration
CWE-416
AllowedUse 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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
10373 vulnerabilities reference this CWE, most recent first.
CVE-2026-20442 (GCVE-0-2026-20442)
Vulnerability from cvelistv5 – Published: 2026-03-02 08:39 – Updated: 2026-03-30 13:05
VLAI
EPSS
VEX
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.
Severity
4.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-02 13:25 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
Impacted products
1 product
| 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 |
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"version": "MT6855"
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{
"status": "affected",
"version": "MT6877"
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{
"status": "affected",
"version": "MT6878"
},
{
"status": "affected",
"version": "MT6879"
},
{
"status": "affected",
"version": "MT6883"
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{
"status": "affected",
"version": "MT6885"
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"status": "affected",
"version": "MT6886"
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{
"status": "affected",
"version": "MT6889"
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{
"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"
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"status": "affected",
"version": "MT6991"
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{
"status": "affected",
"version": "MT6993"
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{
"status": "affected",
"version": "MT8186"
},
{
"status": "affected",
"version": "MT8188"
},
{
"status": "affected",
"version": "MT8196"
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{
"status": "affected",
"version": "MT8667"
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{
"status": "affected",
"version": "MT8673"
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{
"status": "affected",
"version": "MT8676"
},
{
"status": "affected",
"version": "MT8678"
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{
"status": "affected",
"version": "MT8765"
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{
"status": "affected",
"version": "MT8766"
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{
"status": "affected",
"version": "MT8768"
},
{
"status": "affected",
"version": "MT8771"
},
{
"status": "affected",
"version": "MT8781"
},
{
"status": "affected",
"version": "MT8791T"
},
{
"status": "affected",
"version": "MT8792"
},
{
"status": "affected",
"version": "MT8793"
},
{
"status": "affected",
"version": "MT8795T"
},
{
"status": "affected",
"version": "MT8796"
},
{
"status": "affected",
"version": "MT8798"
},
{
"status": "affected",
"version": "MT8873"
},
{
"status": "affected",
"version": "MT8883"
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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
EPSS
VEX
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.
Severity
4.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-02 13:56 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MediaTek, Inc. | MediaTek chipset |
Affected:
MT2718
Affected: MT6899 Affected: MT6991 Affected: MT8678 Affected: MT8793 |
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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
EPSS
VEX
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.
Severity
4.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-02 13:53 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MediaTek, Inc. | MediaTek chipset |
Affected:
MT2718
Affected: MT6899 Affected: MT6991 Affected: MT8678 Affected: MT8793 |
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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
EPSS
VEX
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.
Severity
6.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-03 04:55 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MediaTek, Inc. | MediaTek chipset |
Affected:
MT6897
Affected: MT6989 Affected: MT8196 Affected: MT8678 Affected: MT8766 Affected: MT8768 Affected: MT8786 Affected: MT8796 |
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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
EPSS
VEX
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.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-03 04:55 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
Impacted products
1 product
| 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 |
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CVE-2026-19548 (GCVE-0-2026-19548)
Vulnerability from cvelistv5 – Published: 2026-08-12 15:51 – Updated: 2026-09-01 12:48
VLAI
EPSS
VEX
Title
Binutils: binutils: multiple use-after-free in add_archive_element via lto plugin processing
Summary
Multiple Use-After-Free vulnerabilities were found in the add_archive_element function in ld/ldmain.c of the GNU linker (ld), a component of binutils. The root cause is that plugin_maybe_claim() in ld/plugin.c frees the original BFD object via bfd_close/_bfd_delete_bfd when entry->the_bfd->my_archive == NULL, but the caller retains both the original abfd parameter and a shallow copy (orig_input.the_bfd) as dangling pointers. These dangling pointers are subsequently dereferenced at three distinct locations in add_archive_element:
1. Line ~1442: accessing abfd->my_archive via bfd_usrdata(abfd->my_archive)
2. Line ~1493: multiple accesses to abfd and abfd->my_archive in a conditional check and bfd_get_filename call
3. Line ~1525: dereferencing the shallow copy orig_input.the_bfd->my_archive in trace/verbose logging
The vulnerability is triggered when LTO plugins are active (link_info.lto_plugin_active is true) and the input object has abfd->my_archive == NULL, which is a valid state for standalone object files. Red Hat builds binutils with --enable-plugins and --enable-lto, confirming the vulnerable code path is compiled in and reachable.
An attacker who can supply a crafted object or archive file to a build process using LTO-enabled linking could exploit this flaw to cause a denial of service (linker crash via segmentation fault). Arbitrary code execution is theoretically possible through heap manipulation but is substantially mitigated by hardening measures including stack protector, FORTIFY_SOURCE, ASLR, and PIE.
The attack surface is limited to build-time environments — the linker is a development tool not exposed in production runtime. The most realistic exploitation scenario is a supply chain attack introducing a crafted object file as a build dependency in CI/CD pipelines or development environments.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 16:52 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-19548 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2507832 | issue-trackingx_refsource_REDHAT |
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat Hardened Images |
cpe:/a:redhat:hummingbird:1
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-08-12 13:40
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CVE-2026-19316 (GCVE-0-2026-19316)
Vulnerability from cvelistv5 – Published: 2026-08-27 23:24 – Updated: 2026-09-03 20:49
VLAI
EPSS
VEX
Title
Fireware OS Pre-Authentication Double Free in iked Allows Denial of Service (DoS)
Summary
A double-free vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to create a Denial of Service (DoS) condition in VPN processing by sending specially crafted network traffic.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-28 14:42 UTC
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://psirt.watchguard.com/CVE-2026-19316 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| WatchGuard | Fireware OS |
Affected:
2025.0 , < 2026.2.2
(custom)
Affected: 12.0 , < 12.12.2 (custom) Affected: 2026.3 , < 2026.3.1 (custom) |
|
| WatchGuard | Fireware OS |
Affected:
12.0 , < 12.5.20
(custom)
|
Date Public
2026-08-27 23:24
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CVE-2026-19108 (GCVE-0-2026-19108)
Vulnerability from cvelistv5 – Published: 2026-08-06 20:30 – Updated: 2026-08-08 02:36 X_Open Source
VLAI
EPSS
VEX
Title
MZ Automation libiec61850 URCB Revalidation reporting.c deleteDataSetValuesShadowBuffer use after free
Summary
A vulnerability was found in MZ Automation libiec61850 up to 1.6.1. The affected element is the function deleteDataSetValuesShadowBuffer of the file src/iec61850/server/mms_mapping/reporting.c of the component URCB Revalidation. The manipulation results in use after free. The attack needs to be approached locally. The exploit has been made public and could be used. Upgrading to version 1.6.2 is sufficient to fix this issue. The patch is identified as 486fd57f3aed65bb9d636ff00f9ddce2e450b168. Upgrading the affected component is advised.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-08 02:36 UTC
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/386569 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/386569/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-19108 | third-party-advisory |
| https://vuldb.com/submit/864520 | third-party-advisory |
| https://github.com/mz-automation/libiec61850/issues/596 | issue-tracking |
| https://github.com/user-attachments/files/2916323… | exploit |
| https://github.com/mz-automation/libiec61850/comm… | patch |
| https://github.com/mz-automation/libiec61850/rele… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MZ Automation | libiec61850 |
Affected:
1.6.0
Affected: 1.6.1 Unaffected: 1.6.2 cpe:2.3:a:mz_automation:libiec61850:*:*:*:*:*:*:*:* |
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CVE-2026-18785 (GCVE-0-2026-18785)
Vulnerability from cvelistv5 – Published: 2026-08-04 16:45 – Updated: 2026-08-04 17:35
VLAI
EPSS
VEX
Title
o6 open62541 client_types_custom.c UA_Client_getRemoteDataTypes use after free
Summary
A vulnerability was determined in o6 open62541 ca356b088ada7dee824d1b4acd07c1ff07ce242b. Impacted is the function UA_Client_getRemoteDataTypes of the file examples/custom_datatype/client_types_custom.c. Executing a manipulation can lead to use after free. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. The project closed the issue report, stating that this is not the official way to report a security vulnerability.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-04 17:30 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/385787 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/385787/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-18785 | third-party-advisory |
| https://vuldb.com/submit/857052 | third-party-advisory |
| https://github.com/open62541/open62541/issues/8131 | issue-tracking |
| https://github.com/gff-cw/information/issues/12 | exploitissue-tracking |
Impacted products
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CVE-2026-18711 (GCVE-0-2026-18711)
Vulnerability from cvelistv5 – Published: 2026-08-11 18:48 – Updated: 2026-08-11 20:18
VLAI
EPSS
VEX
Title
Use-After-Free in MongoDB Query Execution Engine Leads to Denial of Service and Potential Memory Disclosure
Summary
An issue in MongoDB Server's query execution engine could allow an authenticated user with read and write privileges to cause an internal reference to be used after the underlying memory has been freed, when running certain queries against time-series collections. This could result in a server crash or disclosure of freed memory contents within query results.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 20:18 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | MongoDB Server |
Affected:
8.3.0 , < 8.3.8
(semver)
Affected: 8.0 , < 8.0.29 (semver) |
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"shortName": "mongodb"
},
"references": [
{
"url": "https://jira.mongodb.org/browse/SERVER-130247"
}
],
"source": {
"discovery": "INTERNAL"
},
"title": "Use-After-Free in MongoDB Query Execution Engine Leads to Denial of Service and Potential Memory Disclosure",
"x_generator": {
"engine": "Vulnogram 1.0.2"
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}
},
"cveMetadata": {
"assignerOrgId": "a39b4221-9bd0-4244-95fc-f3e2e07f1deb",
"assignerShortName": "mongodb",
"cveId": "CVE-2026-18711",
"datePublished": "2026-08-11T18:48:50.724Z",
"dateReserved": "2026-08-03T15:55:11.973Z",
"dateUpdated": "2026-08-11T20:18:56.859Z",
"state": "PUBLISHED"
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"dataVersion": "5.2"
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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.