Common Weakness Enumeration
CWE-825
Weakness AllowedExpired Pointer Dereference
Abstraction: Base · Status: Incomplete
The product dereferences a pointer that contains a location for memory that was previously valid, but is no longer valid.
Mapping guidance
This CWE entry is at the Base level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.
Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.
Relationships and members
Modes of introduction
Implementation
Detection methods
Automated Static Analysis
Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)
Automated Dynamic Analysis
Use tools that are integrated during compilation to insert runtime error-checking mechanisms related to memory safety errors, such as AddressSanitizer (ASan) for C/C++ [REF-1518].
Effectiveness: Moderate
Crafted inputs are necessary to reach the code containing the error, such as generated by fuzzers. Also, these tools may reduce performance, and they only report the error condition - not the original mistake that led to the error.
Notes
Maintenance
There are close relationships between incorrect pointer dereferences and other weaknesses related to buffer operations. There may not be sufficient community agreement regarding these relationships. Further study is needed to determine when these relationships are chains, composites, perspective/layering, or other types of relationships. As of September 2010, most of the relationships are being captured as chains.
Terminology
Many weaknesses related to pointer dereferences fall under the general term of "memory corruption" or "memory safety." As of September 2010, there is no commonly-used terminology that covers the lower-level variants.
Content history
Submission: CWE Content Team
· MITRE
· 2010-09-22
· CWE 1.10
Modification: CWE Content Team
· MITRE
· 2011-06-27
· CWE 2.0
updated Demonstrative_Examples, Potential_Mitigations, Relationships
Modification: CWE Content Team
· MITRE
· 2012-05-11
· CWE 2.2
updated Demonstrative_Examples, Relationships
Modification: CWE Content Team
· MITRE
· 2013-02-21
· CWE 2.4
updated Alternate_Terms
Modification: CWE Content Team
· MITRE
· 2020-02-24
· CWE 4.0
updated Relationships
Modification: CWE Content Team
· MITRE
· 2020-08-20
· CWE 4.2
updated Relationships
Modification: CWE Content Team
· MITRE
· 2020-12-10
· CWE 4.3
updated Relationships
Modification: CWE Content Team
· MITRE
· 2021-03-15
· CWE 4.4
updated Observed_Examples
Modification: CWE Content Team
· MITRE
· 2022-04-28
· CWE 4.7
updated Research_Gaps
Modification: CWE Content Team
· MITRE
· 2023-01-31
· CWE 4.10
updated Common_Consequences, Description
Modification: CWE Content Team
· MITRE
· 2023-04-27
· CWE 4.11
updated Relationships
Modification: CWE Content Team
· MITRE
· 2023-06-29
· CWE 4.12
updated Mapping_Notes
Modification: CWE Content Team
· MITRE
· 2025-04-03
· CWE 4.17
updated Applicable_Platforms
Modification: CWE Content Team
· MITRE
· 2025-09-09
· CWE 4.18
updated Affected_Resources, Functional_Areas
Modification: CWE Content Team
· MITRE
· 2025-12-11
· CWE 4.19
updated Applicable_Platforms, Detection_Factors, Observed_Examples, References, Time_of_Introduction, Weakness_Ordinalities
Modification: CWE Content Team
· MITRE
· 2026-10-28
· CWE 5.0
updated Background_Details, Description, References
132 vulnerabilities reference this CWE, most recent first.
CVE-2026-122192 (GCVE-0-2026-122192)
Vulnerability from cvelistv5 – Published: 2026-11-04 19:35 – Updated: 2026-11-04 19:35
VLAI
EPSS
VEX
Title
Guest access to Firecracker process memory after a failed memory discard
Summary
Improper handling of a failed memory remap in Firecracker versions 0.23.0 through 1.16.1 might allow a guest user with root privileges to read or modify Firecracker VMM process memory via balloon or virtio-mem discard requests on microVMs restored from a snapshot with the File memory backend, if the host fails to create the replacement mapping.
To remediate this issue, users should upgrade to Firecracker 1.16.2 or 1.17.0 and later.
Severity
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/firecracker-microvm/firecracke… | release-notespatch |
| https://github.com/firecracker-microvm/firecracke… | release-notespatch |
| https://aws.amazon.com/security/security-bulletin… | vendor-advisory |
| https://github.com/firecracker-microvm/firecracke… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| AWS | firecracker |
Affected:
0.23.0 , < 1.16.2
(custom)
cpe:2.3:a:aws:firecracker:*:*:*:*:*:*:*:* |
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CVE-2026-104039 (GCVE-0-2026-104039)
Vulnerability from cvelistv5 – Published: 2026-10-06 01:00 – Updated: 2026-11-05 15:52
VLAI
EPSS
VEX
Title
Sssd: sssd: denial of service via stale connection state reuse in pam gssapi responder
Summary
A flaw was found in SSSD. A local user can cause a denial of service (DoS) by disrupting system authentication services. When handling Generic Security Services Application Programming Interface (GSSAPI) authentication in the Pluggable Authentication Module (PAM) responder, cached connection state is freed upon completion without clearing the reference pointer. An attacker can exploit this by sending an additional request over the same connection, causing the service to access invalid memory and unexpectedly terminate.
Severity
4.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 02:39 UTC
CWE
- CWE-825 - Expired Pointer Dereference
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-104039 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2478956 | issue-trackingx_refsource_REDHAT |
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/a:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:rhel_els:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:rhel_els:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/a:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/a:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
|
| Red Hat | Red Hat OpenShift Container Platform 5 |
cpe:/a:redhat:openshift:5
|
Date Public
2026-10-06 00:41
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CVE-2026-104034 (GCVE-0-2026-104034)
Vulnerability from cvelistv5 – Published: 2026-10-06 00:12 – Updated: 2026-11-05 15:52
VLAI
EPSS
VEX
Title
Sssd: sssd: denial of service via use-after-free in kcm ticket renewal
Summary
A flaw was found in SSSD. A use-after-free vulnerability exists in the Kerberos Credential Manager (KCM) responder during Kerberos ticket-granting ticket (TGT) renewal, where a deferred callback accesses memory that has already been released. An authenticated local user with a renewable Kerberos ticket can trigger this issue on systems configured with KCM renewal, causing the KCM responder service to crash and resulting in a Denial of Service (DoS).
Severity
4.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-06 14:42 UTC
CWE
- CWE-825 - Expired Pointer Dereference
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-104034 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2479178 | issue-trackingx_refsource_REDHAT |
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/a:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:rhel_els:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:rhel_els:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/a:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/a:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
|
| Red Hat | Red Hat OpenShift Container Platform 5 |
cpe:/a:redhat:openshift:5
|
Date Public
2026-10-05 23:29
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CVE-2026-102010 (GCVE-0-2026-102010)
Vulnerability from cvelistv5 – Published: 2026-09-28 18:54 – Updated: 2026-11-07 11:32
VLAI
EPSS
VEX
Title
Gcc-toolset-15-gcc: gcc: gcc-toolset-16: gcc: denial of service via use-after-free in binary heap erase_if
Summary
A flaw was found in GCC. When an application calls the erase_if function on a binary heap priority queue in libstdc++, the library reallocates storage but fails to update its internal entry pointer. An attacker capable of triggering this operation can exploit this use-after-free condition, leading to a Denial of Service (DoS) via an application crash or potential memory corruption.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 20:53 UTC
CWE
- CWE-825 - Expired Pointer Dereference
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:73642 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:74569 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:89830 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:89891 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:90915 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:95581 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-102010 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2478395 | issue-trackingx_refsource_REDHAT |
Impacted products
14 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:15.2.1-7.1.el10_2 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:8.5.0-30.el8_10 , < *
(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 |
Unaffected:
0:15.2.1-7.2.el8_10 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8::appstream |
|
| Red Hat | Red Hat Hardened Images |
Unaffected:
13.5.0-0.2.hum1 , < *
(rpm)
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat Hardened Images |
Unaffected:
16.2.1-3.hum1 , < *
(rpm)
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat Hardened Images |
Unaffected:
16.2.1-3.2.hum1 , < *
(rpm)
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/a:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:rhel_els:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:rhel_els:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/a:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/a:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenShift AI (RHOAI) |
cpe:/a:redhat:openshift_ai
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
|
| Red Hat | Red Hat OpenShift Container Platform 5 |
cpe:/a:redhat:openshift:5
|
Date Public
2026-09-28 17:44
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CVE-2026-86845 (GCVE-0-2026-86845)
Vulnerability from cvelistv5 – Published: 2026-10-14 17:52 – Updated: 2026-11-06 01:11
VLAI
EPSS
VEX
Title
Dpdk: dpdk: guest-triggered use-after-free and type confusion in vhost-crypto session cleanup
Summary
A flaw was found in DPDK lib/vhost vhost-crypto. Session cleanup can leave a stale cached session pointer, and the data path does not check the session type before attaching it, leading to use-after-free or type confusion in the host vhost-crypto backend.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 14:46 UTC
CWE
- CWE-825 - Expired Pointer Dereference
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:94629 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:94630 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-86845 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2529844 | issue-trackingx_refsource_REDHAT |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
2:25.11-2.el10_2 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
2:25.11-2.el9_8 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::appstream |
|
| Red Hat | Fast Datapath for RHEL 10 |
cpe:/o:redhat:enterprise_linux:10::fastdatapath
|
|
| Red Hat | Fast Datapath for RHEL 8 |
cpe:/o:redhat:enterprise_linux:8::fastdatapath
|
|
| Red Hat | Fast Datapath for RHEL 9 |
cpe:/o:redhat:enterprise_linux:9::fastdatapath
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/a:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
|
| Red Hat | Red Hat OpenStack Platform 13 (Queens) |
cpe:/a:redhat:openstack:13
|
Date Public
2026-10-14 15:01
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CVE-2026-78123 (GCVE-0-2026-78123)
Vulnerability from cvelistv5 – Published: 2026-09-11 01:26 – Updated: 2026-09-15 15:25
VLAI
EPSS
VEX
Summary
strongSwan 5.0.2 through 6.0.7 has an Expired Pointer Dereference in PKCS#7 parsing in the openssl plugin.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-15 15:25 UTC
CWE
- CWE-825 - Expired Pointer Dereference
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| strongSwan | strongSwan |
Affected:
5.0.2 , < 6.1.0
(semver)
cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:* |
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CVE-2026-77220 (GCVE-0-2026-77220)
Vulnerability from cvelistv5 – Published: 2026-08-21 20:54 – Updated: 2026-10-01 15:21 X_Open Source
VLAI
EPSS
VEX
Title
PDFio < 1.6.5 Dangling Pointer via Dictionary String-Formatting
Summary
PDFio before 1.6.5 contains a dangling pointer vulnerability in the dictionary string-formatting function that stores a pointer to a stack-local buffer in the document dictionary without copying the string value. In multi-threaded or pooled-request environments, attackers or concurrent users can trigger stack memory reuse across requests, causing cross-tenant document content corruption by silently overwriting one caller's dictionary string values with another caller's data.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-24 19:40 UTC
CWE
- CWE-825 - Expired Pointer Dereference
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/michaelrsweet/pdfio/releases/t… | release-notes |
| https://github.com/michaelrsweet/pdfio/commit/22b… | patch |
| https://www.vulncheck.com/advisories/pdfio-dangli… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| michaelrsweet | pdfio |
Affected:
0 , < 1.6.5
(semver)
cpe:2.3:a:msweet:pdfio:*:*:*:*:*:*:*:* |
Date Public
2026-08-19 00:00
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CVE-2026-76891 (GCVE-0-2026-76891)
Vulnerability from cvelistv5 – Published: 2026-08-19 22:46 – Updated: 2026-09-17 18:47
VLAI
EPSS
VEX
Title
Expired Pointer Dereference in Wireshark
Summary
Crash in sharkd in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 15:06 UTC
CWE
- CWE-825 - Expired Pointer Dereference
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wireshark Foundation | Wireshark |
Affected:
4.6.0 , < 4.6.8
(semver)
Affected: 4.4.0 , < 4.4.18 (semver) |
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CVE-2026-76890 (GCVE-0-2026-76890)
Vulnerability from cvelistv5 – Published: 2026-08-19 22:46 – Updated: 2026-09-17 18:47
VLAI
EPSS
VEX
Title
Expired Pointer Dereference in Wireshark
Summary
Crash in sharkd in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 15:06 UTC
CWE
- CWE-825 - Expired Pointer Dereference
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wireshark Foundation | Wireshark |
Affected:
4.6.0 , < 4.6.8
(semver)
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CVE-2026-65970 (GCVE-0-2026-65970)
Vulnerability from cvelistv5 – Published: 2026-09-18 15:41 – Updated: 2026-09-18 16:43
VLAI
EPSS
VEX
Title
OpenImageIO: TIFF multithreaded scanline read use-after-scope in `TIFFInput::read_native_scanlines`
Summary
OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.1.16.0, a crafted ZIP-compressed TIFF processed with TIFF multithreading enabled can make TIFFInput::read_native_scanlines() return through an error path while asynchronous strip-decompression work remains queued. Because task_set is declared before ok and compressed_scratch, those captured objects are destroyed before the task-set destructor waits, allowing worker tasks to use stale stack and heap storage, resulting in a use-after-scope crash and denial of service. The affected implementation is identified by src/tiff.imageio/tiffinput.cpp, TIFFInput::read_native_scanlines(), task_set, ok, compressed_scratch, and uncompress_one_strip(), which define the relevant source path, functions, state, and trigger. This issue is fixed in 3.1.16.0.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 16:41 UTC
CWE
- CWE-825 - Expired Pointer Dereference
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/AcademySoftwareFoundation/Open… | x_refsource_CONFIRM |
| https://github.com/AcademySoftwareFoundation/Open… | x_refsource_MISC |
| https://github.com/AcademySoftwareFoundation/Open… | x_refsource_MISC |
| https://github.com/AcademySoftwareFoundation/Open… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| AcademySoftwareFoundation | OpenImageIO |
Affected:
< 3.1.16.0
|
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Mitigation
Architecture and Design
Choose a language that provides automatic memory management.
Mitigation
Implementation
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.