Common Weakness Enumeration
CWE-401
AllowedMissing Release of Memory after Effective Lifetime
Abstraction: Variant · Status: Draft
The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
2228 vulnerabilities reference this CWE, most recent first.
CVE-2026-102716 (GCVE-0-2026-102716)
Vulnerability from cvelistv5 – Published: 2026-09-29 17:43 – Updated: 2026-09-29 18:41
VLAI
EPSS
VEX
Summary
An unauthenticated client can drain the RTSP server's packet pool with a couple of dozen requests
that carry a Session header the parser cannot convert.
The Session branch returns the raw NetX error code instead of an RTSP status code:
```c
/* addons/rtsp/nx_rtsp_server.c:2754 */
status = _nx_utility_string_to_uint(field_value_ptr, field_value_length, &session_id);
if (status)
{
return(status); /* NX_INVALID_PARAMETERS / NX_SIZE_ERROR / NX_OVERFLOW */
}
```
Every other branch of the same function maps its failure to an RTSP status first. The CSeq branch
eighteen lines earlier does exactly that (line 2736 returns NX_RTSP_STATUS_CODE_BAD_REQUEST). The
raw code then reaches `_nx_rtsp_server_error_response_send` (nx_rtsp_server.c:1234), which does not
recognise it, takes a path that returns without releasing the response packet it already allocated,
and the block never goes back to the pool.
Six requests with an empty Session header against a 22 packet pool:
```
valid requests: after request 6: pool available = 21, AFTER = 22 / 22
malformed requests: after request 6: pool available = 16, AFTER = 17 / 22
```
One block per request, not returned when the client disconnects. Twenty six requests take the pool
to zero and the server starts failing allocations, after which it serves nobody. If the pool is
shared with the rest of the application, as it is in the shipped sample, the rest of the stack
stops with it.
Convert the `_nx_utility_string_to_uint` failure in the Session branch into
NX_RTSP_STATUS_CODE_BAD_REQUEST the way the CSeq branch does, and release the response packet on
every exit path of `_nx_rtsp_server_error_response_send`.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 18:40 UTC
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | eclipse-threadx/netxduo |
Affected:
0 , ≤ 6.5.1
(semver)
|
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CVE-2026-102081 (GCVE-0-2026-102081)
Vulnerability from cvelistv5 – Published: 2026-10-14 16:26 – Updated: 2026-10-14 20:46
VLAI
EPSS
VEX
Title
Junos OS: SRX4000 Series, SRX5000 Series and MX Series with SPC3: With application services configured, high session churn causes memory leak which will ultimately impact traffic
Summary
A Missing Release of Memory after Effective Lifetime vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a complete Denial-of-Service (DoS).
On SRX4000 Series, and SRX5000 Series with SPC3, and MX Series with SPC3, when one or more specific application services like ALGs, IDP/DPI, APPID, SECINTEL, AAMW or AppQoE are configured, a high connections per second churn will cause PFE memory to leak. If the memory is exhausted traffic processing will be impacted.
Use the CLI command show security monitoring to monitor the memory utilization of the PFEs on the FPCs.
This issue affects Junos OS on SRX Series and MX Series:
* 23.4 versions from 23.4R2-S3 before 23.4R2-S7;
* 24.2 versions from 24.2R2 before 24.2R2-S3;
* 24.4 versions before 24.4R2-S3;
* 25.2 versions before 25.2R1-S2, 25.2R2.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 20:38 UTC
CWE
- CWE-401 - Improper Release of Memory Before Removing Last Reference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA112177 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
23.4R2-S3 , < 23.4R2-S7
(custom)
Affected: 24.2R2 , < 24.2R2-S3 (custom) Affected: 24.4 , < 24.4R2-S3 (custom) Affected: 25.2 , < 25.2R1-S2, 25.2R2 (custom) |
Date Public
2026-10-14 16:00
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CVE-2026-102053 (GCVE-0-2026-102053)
Vulnerability from cvelistv5 – Published: 2026-10-14 16:54 – Updated: 2026-10-16 16:37
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: An EVPN-VXLAN memory leak causes denial of service when active-active multihoming is used
Summary
An Improper Release of Memory Before Removing Last Reference vulnerability in the l2ald process of Juniper Networks Junos OS and Junos OS Evolved on QFX5K-family platforms allows a configured EVPN peer to cause a denial of service through memory exhaustion via EVPN-VXLAN active-active multihoming route processing.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 16:36 UTC
CWE
- CWE-401 - Improper Release of Memory Before Removing Last Reference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA112187 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7.7
(custom)
Affected: 23.4 , < 23.4R2-S8.13 (custom) Affected: 24.2 , < 24.2R2-S5.5 (custom) Affected: 24.4 , < 24.4R2-S5 (custom) Affected: 25.2 , < 25.2R2-S2 (custom) Affected: 25.4 , < 25.4R1-S3 (custom) Affected: 26.2 , < 26.2R1-S2 (custom) |
|
| Juniper Networks | Junos OS Evolved |
Affected:
0 , < 23.2R2-S7.7-EVO
(custom)
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Date Public
2026-10-14 16:00
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CVE-2026-102051 (GCVE-0-2026-102051)
Vulnerability from cvelistv5 – Published: 2026-10-14 16:53 – Updated: 2026-10-14 20:26
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: An attacker causes l2cpd memory exhaustion when LLDP fast receive processing is enabled
Summary
An Improper Release of Memory Before Removing Last Reference vulnerability in the l2cpd process of Juniper Networks Junos OS and Junos OS Evolved platforms allows an adjacent unauthenticated attacker to cause l2cpd memory exhaustion and Layer 2 control-plane disruption via LLDP traffic when fast receive processing is enabled.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 20:04 UTC
CWE
- CWE-401 - Improper Release of Memory Before Removing Last Reference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA112187 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7.7
(custom)
Affected: 23.4 , < 23.4R2-S8.13 (custom) Affected: 24.2 , < 24.2R2-S5.5 (custom) Affected: 24.4 , < 24.4R2-S5 (custom) Affected: 25.2 , < 25.2R2-S2 (custom) Affected: 25.4 , < 25.4R1-S3 (custom) Affected: 26.2 , < 26.2R1-S2 (custom) |
|
| Juniper Networks | Junos OS Evolved |
Affected:
0 , < 23.2R2-S7.7-EVO
(custom)
Affected: 23.4 , < 23.4R2-S8.11-EVO (custom) Affected: 24.2 , < 24.2R2-S5.6-EVO (custom) Affected: 24.4 , < 24.4R2-S5-EVO (custom) Affected: 25.2 , < 25.2R2-S2-EVO (custom) Affected: 25.4 , < 25.4R1-S3-EVO (custom) Affected: 26.2 , < 26.2R1-S2-EVO (custom) Affected: 23.4X100 (custom) Affected: 25.2X100 , < 25.2X100-D35-EVO (custom) Affected: 25.4X300 , < 25.4X300-D40-EVO (custom) |
Date Public
2026-10-14 16:00
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CVE-2026-102032 (GCVE-0-2026-102032)
Vulnerability from cvelistv5 – Published: 2026-10-14 16:50 – Updated: 2026-10-14 20:15
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: Unintended l2ald memory allocation causes a denial of service when static MAC IP configurations are present
Summary
A Missing Release of Memory after Effective Lifetime vulnerability in the l2ald process of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a denial of service via crafted packets when the static MAC-IP feature is in use.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 20:14 UTC
CWE
- CWE-401 - Improper Release of Memory Before Removing Last Reference
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.juniper.net/documentation/us/en/softw… | product |
| https://supportportal.juniper.net/JSA112187 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
23.4 , < 23.4R2-S8.13
(custom)
Affected: 24.2 , < 24.2R2-S5.5 (custom) Affected: 24.4 , < 24.4R2-S5 (custom) Affected: 25.2 , < 25.2R2-S2 (custom) Affected: 25.4 , < 25.4R1-S3 (custom) Affected: 26.2 , < 26.2R1-S2 (custom) |
|
| Juniper Networks | Junos OS Evolved |
Affected:
23.4 , < 23.4R2-S8.11-EVO
(custom)
Affected: 24.2 , < 24.2R2-S5.6-EVO (custom) Affected: 24.4 , < 24.4R2-S5-EVO (custom) Affected: 25.2 , < 25.2R2-S2-EVO (custom) Affected: 25.4 , < 25.4R1-S3-EVO (custom) Affected: 26.2 , < 26.2R1-S2-EVO (custom) Affected: 23.4X100 , < 26.2R1-S2-EVO (custom) Affected: 25.2X100 , < 25.2X100-D35-EVO (custom) Affected: 25.4X300 , < 25.4X300-D40-EVO (custom) |
Date Public
2026-10-14 16:00
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CVE-2026-102006 (GCVE-0-2026-102006)
Vulnerability from cvelistv5 – Published: 2026-09-28 20:46 – Updated: 2026-09-30 13:42
VLAI
EPSS
VEX
Title
VxWorks 7 Memory allocation
Summary
In Wind River VxWorks 7 prior to 26.09, specific system call arguments can result in the process management subsystem failing to properly release allocated kernel memory before terminating the calling application. Fixed in Version 26.09
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 13:42 UTC
CWE
- CWE-401 - Missing release of memory after effective lifetime
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wind River Systems Inc | VxWorks 7 |
Affected:
VxWorks 7
|
Date Public
2026-09-28 20:29
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CVE-2026-102005 (GCVE-0-2026-102005)
Vulnerability from cvelistv5 – Published: 2026-09-28 20:15 – Updated: 2026-09-28 20:43
VLAI
EPSS
VEX
Title
VxWorks Memory Allocation
Summary
Wind River VxWorks 7 24.03 through 26.03, a memory leak occurs under specific, non-default configuration states when processing specific service routines, causing the system to terminate operations before releasing allocated memory pools. Fixed in VxWorks 7 26.09
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 20:43 UTC
CWE
- CWE-401 - Missing release of memory after effective lifetime
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wind River Inc | VxWorks 7 |
Affected:
VxWorks 7
|
Date Public
2026-09-28 20:01
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CVE-2026-101025 (GCVE-0-2026-101025)
Vulnerability from cvelistv5 – Published: 2026-10-14 14:40 – Updated: 2026-10-15 16:43
VLAI
EPSS
VEX
Title
NGINX ngx_http_js_module vulnerability
Summary
Description
NGINX JavaScript (njs) has a vulnerability where the built-in njs engine leaks a libxml2 parser context when xml.parse() fails. The failure path did not register cleanup and the context was not released for the lifetime of the process. An unauthenticated attacker may send requests with malformed XML and can cause unbounded memory growth in long-lived NGINX worker processes.
Impact
This vulnerability may allow remote attackers to send requests that trigger repeated parsing of malformed XML and may lead to NGINX worker termination or denial of service. There is no control plane exposure; this is a data plane issue only.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 15:54 UTC
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://my.f5.com/manage/s/article/K000162614 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| F5 | NGINX JavaScript |
Affected:
0.7.10 , < 1.0.2
(custom)
|
Date Public
2023-01-01 00:00
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CVE-2026-95395 (GCVE-0-2026-95395)
Vulnerability from cvelistv5 – Published: 2026-09-29 09:33 – Updated: 2026-09-29 15:51
VLAI
EPSS
VEX
Title
Missing Release of Memory after Effective Lifetime in Wireshark
Summary
IEEE C37.118 Synchrophasor protocol dissector memory leak in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:51 UTC
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wireshark Foundation | Wireshark |
Affected:
4.6.0 , < 4.6.9
(semver)
Affected: 4.4.0 , < 4.4.19 (semver) |
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CVE-2026-94652 (GCVE-0-2026-94652)
Vulnerability from cvelistv5 – Published: 2026-10-02 11:54 – Updated: 2026-10-05 16:16
VLAI
EPSS
VEX
Title
Apache Thrift: C++ `TEvhttpServer` leaks its `RequestContext` when the processor throws before calling back
Summary
Missing release of memory after effective lifetime vulnerability in Apache Thrift c++ bindings.
This issue affects Apache Thrift: before 0.25.0.
Users are recommended to upgrade to version 0.25.0, which fixes the issue.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-05 16:15 UTC
CWE
- CWE-401 - Missing release of memory after effective lifetime
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/33otcgbqd27wf6qq8… | vendor-advisory |
| https://lists.apache.org/thread/nodwz7gjvogkkh3w1… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Thrift |
Affected:
0 , < 0.25.0
(semver)
|
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Mitigation MIT-41
Implementation
Strategy: Libraries or Frameworks
- Choose a language or tool that provides automatic memory management, or makes manual memory management less error-prone.
- For example, glibc in Linux provides protection against free of invalid pointers.
- When using Xcode to target OS X or iOS, enable automatic reference counting (ARC) [REF-391].
- To help correctly and consistently manage memory when programming in C++, consider using a smart pointer class such as std::auto_ptr (defined by ISO/IEC ISO/IEC 14882:2003), std::shared_ptr and std::unique_ptr (specified by an upcoming revision of the C++ standard, informally referred to as C++ 1x), or equivalent solutions such as Boost.
Mitigation
Architecture and Design
Use an abstraction library to abstract away risky APIs. Not a complete solution.
Mitigation
Architecture and Design
Build and Compilation
Consider using the Boehm-Demers-Weiser garbage collector (bdwgc), which can help avoid leaks.
No CAPEC attack patterns related to this CWE.