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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
10881 vulnerabilities reference this CWE, most recent first.
CVE-2023-4891 (GCVE-0-2023-4891)
Vulnerability from cvelistv5 – Published: 2023-11-08 22:00 – Updated: 2024-09-03 20:10
VLAI
EPSS
VEX
Summary
A potential use-after-free vulnerability was reported in the Lenovo View driver that could result in denial of service.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-03 20:10 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Lenovo | Lenovo View Driver |
Affected:
Versions prior to 2.3.18.1
|
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CVE-2023-4813 (GCVE-0-2023-4813)
Vulnerability from cvelistv5 – Published: 2023-09-12 21:54 – Updated: 2025-11-11 19:29
VLAI
EPSS
VEX
Title
Glibc: potential use-after-free in gaih_inet()
Summary
A flaw has been identified in glibc. In an uncommon situation, the gaih_inet function may use memory that has been freed, resulting in an application crash. This issue is only exploitable when the getaddrinfo function is called and the hosts database in /etc/nsswitch.conf is configured with SUCCESS=continue or SUCCESS=merge.
Severity
5.9 (Medium)
CWE
- CWE-416 - Use After Free
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHBA-2024:2413 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2023:5453 | vendor-advisoryx_refsource_REDHAT |
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| http://www.openwall.com/lists/oss-security/2023/10/03/8 | x_transferred |
| https://security.netapp.com/advisory/ntap-2023111… | x_transferred |
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:2.28-225.el8_8.6 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8::crb cpe:/o:redhat:enterprise_linux:8::baseos cpe:/a:redhat:enterprise_linux:8::appstream |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support |
Unaffected:
0:2.28-189.8.el8_6 , < *
(rpm)
cpe:/o:redhat:rhel_eus:8.6::baseos cpe:/a:redhat:rhel_eus:8.6::crb cpe:/a:redhat:rhel_eus:8.6::appstream cpe:/o:redhat:rhev_hypervisor:4.4::el8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:2.34-100.el9 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:9::baseos cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::crb |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:2.34-60.el9_2.7 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:9::baseos cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::crb |
|
| Red Hat | Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 |
Unaffected:
0:2.28-189.8.el8_6 , < *
(rpm)
cpe:/o:redhat:rhel_eus:8.6::baseos cpe:/a:redhat:rhel_eus:8.6::crb cpe:/a:redhat:rhel_eus:8.6::appstream cpe:/o:redhat:rhev_hypervisor:4.4::el8 |
|
| 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
|
Date Public
2022-03-01 00:00
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CVE-2023-4806 (GCVE-0-2023-4806)
Vulnerability from cvelistv5 – Published: 2023-09-18 16:33 – Updated: 2026-07-14 13:23
VLAI
EPSS
VEX
Title
Glibc: potential use-after-free in getaddrinfo()
Summary
A flaw has been identified in glibc. In an extremely rare situation, the getaddrinfo function may access memory that has been freed, resulting in an application crash. This issue is only exploitable when a NSS module implements only the _nss_*_gethostbyname2_r and _nss_*_getcanonname_r hooks without implementing the _nss_*_gethostbyname3_r hook. The resolved name should return a large number of IPv6 and IPv4, and the call to the getaddrinfo function should have the AF_INET6 address family with AI_CANONNAME, AI_ALL and AI_V4MAPPED as flags.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-02-15 19:32 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
16 references
Impacted products
9 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:2.28-225.el8_8.6 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8::appstream cpe:/a:redhat:enterprise_linux:8::crb cpe:/o:redhat:enterprise_linux:8::baseos |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support |
Unaffected:
0:2.28-189.8.el8_6 , < *
(rpm)
cpe:/a:redhat:rhel_eus:8.6::appstream cpe:/a:redhat:rhel_eus:8.6::crb cpe:/o:redhat:rhel_eus:8.6::baseos cpe:/o:redhat:rhev_hypervisor:4.4::el8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:2.34-60.el9_2.7 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::crb cpe:/o:redhat:enterprise_linux:9::baseos |
|
| Red Hat | Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 |
Unaffected:
0:2.28-189.8.el8_6 , < *
(rpm)
cpe:/a:redhat:rhel_eus:8.6::appstream cpe:/a:redhat:rhel_eus:8.6::crb cpe:/o:redhat:rhel_eus:8.6::baseos cpe:/o:redhat:rhev_hypervisor:4.4::el8 |
|
| 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
|
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
Date Public
2023-09-12 00:00
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CVE-2023-4755 (GCVE-0-2023-4755)
Vulnerability from cvelistv5 – Published: 2023-09-04 13:46 – Updated: 2024-09-19 15:35
VLAI
EPSS
VEX
Title
Use After Free in gpac/gpac
Summary
Use After Free in GitHub repository gpac/gpac prior to 2.3-DEV.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-19 15:31 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
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CVE-2023-4752 (GCVE-0-2023-4752)
Vulnerability from cvelistv5 – Published: 2023-09-04 13:46 – Updated: 2025-11-03 20:36
VLAI
EPSS
VEX
Title
Use After Free in vim/vim
Summary
Use After Free in GitHub repository vim/vim prior to 9.0.1858.
Severity
7.8 (High)
CWE
- CWE-416 - Use After Free
Assigner
References
9 references
Impacted products
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CVE-2023-4750 (GCVE-0-2023-4750)
Vulnerability from cvelistv5 – Published: 2023-09-04 13:47 – Updated: 2026-06-23 17:19
VLAI
EPSS
VEX
Title
Use After Free in vim/vim
Summary
Use After Free in GitHub repository vim/vim prior to 9.0.1857.
Severity
7.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-01-28 20:55 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
7 references
Impacted products
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CVE-2023-4733 (GCVE-0-2023-4733)
Vulnerability from cvelistv5 – Published: 2023-09-04 13:47 – Updated: 2026-06-23 17:19
VLAI
EPSS
VEX
Title
Use After Free in vim/vim
Summary
Use After Free in GitHub repository vim/vim prior to 9.0.1840.
Severity
7.3 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-01-02 18:44 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
7 references
Impacted products
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CVE-2023-4679 (GCVE-0-2023-4679)
Vulnerability from cvelistv5 – Published: 2024-11-15 10:53 – Updated: 2024-11-15 19:12
VLAI
EPSS
VEX
Title
Use After Free in gpac/gpac
Summary
A use after free vulnerability exists in GPAC version 2.3-DEV-revrelease, specifically in the gf_filterpacket_del function in filter_core/filter.c at line 38. This vulnerability can lead to a double-free condition, which may cause the application to crash.
Severity
5.9 (Medium)
5.9 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-15 19:10 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
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CVE-2023-4623 (GCVE-0-2023-4623)
Vulnerability from cvelistv5 – Published: 2023-09-06 13:56 – Updated: 2025-02-27 21:00
VLAI
EPSS
VEX
Title
Use-after-free in Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control) component
Summary
A use-after-free vulnerability in the Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control) component can be exploited to achieve local privilege escalation.
If a class with a link-sharing curve (i.e. with the HFSC_FSC flag set) has a parent without a link-sharing curve, then init_vf() will call vttree_insert() on the parent, but vttree_remove() will be skipped in update_vf(). This leaves a dangling pointer that can cause a use-after-free.
We recommend upgrading past commit b3d26c5702c7d6c45456326e56d2ccf3f103e60f.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-26 21:52 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
Date Public
2023-08-26 01:57
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CVE-2023-4622 (GCVE-0-2023-4622)
Vulnerability from cvelistv5 – Published: 2023-09-06 13:56 – Updated: 2025-02-13 17:14
VLAI
EPSS
VEX
Title
Use-after-free in Linux kernel's af_unix component
Summary
A use-after-free vulnerability in the Linux kernel's af_unix component can be exploited to achieve local privilege escalation.
The unix_stream_sendpage() function tries to add data to the last skb in the peer's recv queue without locking the queue. Thus there is a race where unix_stream_sendpage() could access an skb locklessly that is being released by garbage collection, resulting in use-after-free.
We recommend upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c.
Severity
7.8 (High)
CWE
- CWE-416 - Use After Free
Assigner
References
6 references
Date Public
2023-08-23 15:52
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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.