Common Weakness Enumeration
CWE-125
AllowedOut-of-bounds Read
Abstraction: Base · Status: Draft
The product reads data past the end, or before the beginning, of the intended buffer.
4530 vulnerabilities reference this CWE, most recent first.
CVE-2026-94283 (GCVE-0-2026-94283)
Vulnerability from cvelistv5 – Published: 2026-09-28 08:34 – Updated: 2026-09-30 12:44
VLAI
EPSS
VEX
Title
Out-of-bounds read vulnerability in libX11's XIM (X Input Method) attribute parser
Summary
An out-of-bounds read vulnerability in libX11's XIM (X Input Method) attribute parser in libX11 before 1.8.14 could be used by malicious X servers to crash attached X clients.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 12:43 UTC
CWE
- CWE-125 - Out-of-bounds read
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://gitlab.freedesktop.org/xorg/lib/libx11/-/… | patch |
Impacted products
Date Public
2026-09-28 08:31
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CVE-2026-94282 (GCVE-0-2026-94282)
Vulnerability from cvelistv5 – Published: 2026-09-28 08:18 – Updated: 2026-09-30 12:41
VLAI
EPSS
VEX
Title
Out-of-bounds read in libXi's XI2 enter/leave/focus cookie conversion
Summary
An out-of-bounds read in libXi's XI2 enter/leave/focus cookie conversion in libXi before 1.8.4 could be used by malicious X server to crash an attached X client.
Severity
5.6 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 12:41 UTC
CWE
- CWE-125 - Out-of-bounds read
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://gitlab.freedesktop.org/xorg/lib/libxi/-/m… | patch |
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Date Public
2026-09-28 08:15
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CVE-2026-94281 (GCVE-0-2026-94281)
Vulnerability from cvelistv5 – Published: 2026-09-24 16:23 – Updated: 2026-09-24 17:14
VLAI
EPSS
VEX
Title
Out-of-bounds read in libXi's XListInputDevices() class parsing
Summary
An out-of-bounds read in libXi's XListInputDevices() class parsing in libXi before 1.8.4 could be used by malicious X servers to crash an attached X client.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-24 17:14 UTC
CWE
- CWE-125 - Out-of-bounds read
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://gitlab.freedesktop.org/xorg/lib/libxi/-/m… | patch |
Impacted products
Date Public
2026-09-24 16:22
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CVE-2026-94202 (GCVE-0-2026-94202)
Vulnerability from cvelistv5 – Published: 2026-10-20 15:19 – Updated: 2026-10-20 17:04
VLAI
EPSS
VEX
Title
Module block-pool create validates two of the four parameter words it reads
Summary
The Module Manager's block-pool create dispatcher proved that two `ALIGN_TYPE` words of the extra-parameter array a memory-protected module supplies lay inside the module's data, and then used indices 0 through 3 of that array.
One of the two unproved words is read by the dispatcher's own buffer check, which takes index 1 as the pool start and index 2 as the length to range-check it over. So the out-of-bounds read is performed by the validation code itself, before the kernel service is reached, and the size the caller's pool start is then validated against is a word the manager has not proved the module owns. The other unproved word is read when the service's argument list is built.
Vulnerable function: `_txm_module_manager_tx_block_pool_create_dispatch`, in `common_modules/module_manager/inc/txm_module_manager_dispatch.h`.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 17:04 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
eclipse
CNA
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | Eclipse ThreadX |
Affected:
6.0.1 , ≤ 6.5.1.202602a
(semver)
Unaffected: 6.5.2.202603 |
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CVE-2026-94024 (GCVE-0-2026-94024)
Vulnerability from cvelistv5 – Published: 2026-10-20 15:18 – Updated: 2026-10-20 17:01
VLAI
EPSS
VEX
Title
Module Manager object lookup validates one byte of a module's search name
Summary
The Module Manager's object lookup validated one byte of a memory-protected module's search name and then walked as much of it as the module declared, in privileged mode, with the kernel's preemption count raised. Both lookup dispatchers are affected: the recommended `txm_module_object_pointer_get_extended` is handed a length and does not use it to bound the buffer, and the deprecated `txm_module_object_pointer_get` supplies the largest value a `UINT` can hold, so it removes the bound rather than lacking one.
A module can make the walk unbounded without knowing anything about the memory it reaches, and where the walk reaches memory a privileged read cannot take, the resulting fault leaves the kernel unable to preempt for the rest of the system's life.
Vulnerable functions: `_txm_module_manager_txm_module_object_pointer_get_dispatch`, `_txm_module_manager_txm_module_object_pointer_get_extended_dispatch` (both in `common_modules/module_manager/inc/txm_module_manager_dispatch.h`) and `_txm_module_manager_object_name_compare` (`common_modules/module_manager/src/txm_module_manager_util.c`).
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 17:00 UTC
Assigner
eclipse
CNA
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | Eclipse ThreadX |
Affected:
6.0.1 , ≤ 6.5.1.202602a
(semver)
Unaffected: 6.5.2.202603 |
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CVE-2026-94023 (GCVE-0-2026-94023)
Vulnerability from cvelistv5 – Published: 2026-10-20 15:18 – Updated: 2026-10-20 17:03
VLAI
EPSS
VEX
Title
Module delete dispatchers do not enforce kernel-object ownership before irreversible deletion
Summary
A ThreadX module reaches a kernel object's delete service through the Module Manager's dispatch layer, which asked one question about the pointer: does the object lie outside the module's own code and data. That is the policy for *using* an object, and using an object a module does not own is supported and intended — `txm_module_object_pointer_get_extended` searches the system's created objects by name and hands back objects the application created and objects other modules created, so that a module can send to a shared queue, take a shared semaphore or get a shared mutex.
Destroying one of those is not sharing it. A module could name any object it had a pointer to and have the privileged dispatcher delete it.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 17:03 UTC
Assigner
eclipse
CNA
References
1 reference
Impacted products
1 product
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Affected:
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CVE-2026-93862 (GCVE-0-2026-93862)
Vulnerability from cvelistv5 – Published: 2026-10-27 15:52 – Updated: 2026-10-29 01:52
VLAI
EPSS
VEX
Title
Fireware OS Out-of-Bounds Read in FireCluster Sync Allows Denial of Service
Summary
An out-of-bounds read vulnerability in the FireCluster Sync processing allows an attacker positioned on the cluster interconnect, such as a compromised cluster peer or an on-path network attacker, to repeatedly crash the firewall's cluster synchronization process by sending specially crafted network traffic, resulting in a sustained denial of service.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 01:39 UTC
Assigner
WatchGuard
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://psirt.watchguard.com/CVE-2026-93862 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| WatchGuard | Fireware OS |
Affected:
2025.1 , < 2026.4
(custom)
Affected: 12.0 , < 12.12.4 (custom) |
|
| WatchGuard | Fireware OS |
Affected:
12.0 , < 12.5.22
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CVE-2026-93682 (GCVE-0-2026-93682)
Vulnerability from cvelistv5 – Published: 2026-09-25 20:02 – Updated: 2026-09-25 20:38
VLAI
EPSS
VEX
Title
Out-of-bounds read in the HTTP stream wrapper when following a redirect with an empty Location header
Summary
When the HTTP stream wrapper follows a redirect and the response carries a Location header with an empty value, the redirect code reads one byte past the end of the heap buffer holding the location. The value of that out-of-bounds byte decides which redirect target is built, so a malicious server controls whether the client is sent to the host root or to the current directory.
Severity
5.8 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-25 20:37 UTC
CWE
- CWE-125 - Out-of-bounds read
Assigner
php
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/php/php-src/security/advisorie… | vendor-advisory |
Impacted products
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CVE-2026-93545 (GCVE-0-2026-93545)
Vulnerability from cvelistv5 – Published: 2026-09-24 16:20 – Updated: 2026-09-24 17:14
VLAI
EPSS
VEX
Title
Out-of-bounds read in libXi's XListInputDevices()
Summary
An out-of-bounds read in libXi's XListInputDevices() in libXi before 1.8.4 could be used by malicious X servers to crash an attached X client.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-24 17:14 UTC
CWE
- CWE-125 - Out-of-bounds read
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://gitlab.freedesktop.org/xorg/lib/libxi/-/m… | patch |
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Date Public
2026-09-24 16:18
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CVE-2026-93544 (GCVE-0-2026-93544)
Vulnerability from cvelistv5 – Published: 2026-09-24 16:13 – Updated: 2026-09-24 17:16
VLAI
EPSS
VEX
Title
Out-of-bounds read in libXi's XI2 XIQueryDevice reply parsing
Summary
An out-of-bounds read in libXi's XI2 XIQueryDevice reply parsing in libXi before 1.8.4 can be used by a malicious X server to crash an attached X client.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-24 17:16 UTC
CWE
- CWE-125 - Out-of-bounds read
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://gitlab.freedesktop.org/xorg/lib/libxi/-/m… | patch |
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2026-09-24 16:11
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Mitigation MIT-5
Implementation
Strategy: Input Validation
- Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
- When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
- Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
- To reduce the likelihood of introducing an out-of-bounds read, ensure that you validate and ensure correct calculations for any length argument, buffer size calculation, or offset. Be especially careful of relying on a sentinel (i.e. special character such as NUL) in untrusted inputs.
Mitigation
Architecture and Design
Strategy: Language Selection
Use a language that provides appropriate memory abstractions.
CAPEC-540: Overread Buffers
An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.