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.
11731 vulnerabilities reference this CWE, most recent first.
CVE-2026-19028 (GCVE-0-2026-19028)
Vulnerability from cvelistv5 – Published: 2026-08-05 23:15 – Updated: 2026-08-06 14:25
VLAI
EPSS
VEX
Title
HDF5 integer underflow in Fletcher32 filter leads to massive out-of-bounds read
Summary
H5Z__filter_fletcher32 in H5Zfletcher32.c in HDF5 through 2.3.0 computes the data length to checksum by subtracting the 4-byte trailing checksum size from the input buffer size without checking that the buffer is at least 4 bytes, allowing a size_t underflow. This allows attackers to cause a denial of service (massively out-of-bounds read and application crash in H5_checksum_fletcher32) via a crafted HDF5 file with a Fletcher32-filtered chunk smaller than 4 bytes, triggered via H5Dread, e.g. by the h5ls or h5dump tools.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-06 14:24 UTC
CWE
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The HDF Group | HDF5 |
Affected:
<=2.3.0
|
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CVE-2026-19027 (GCVE-0-2026-19027)
Vulnerability from cvelistv5 – Published: 2026-08-05 23:12 – Updated: 2026-08-06 14:30
VLAI
EPSS
VEX
Title
HDF5 out-of-bounds heap read in N-Bit filter decompression
Summary
The H5Z__nbit_decompress_one_byte, H5Z__nbit_decompress_one_nooptype, and H5Z__nbit_decompress_one_atomic functions in H5Znbit.c in HDF5 through 2.3.0 advance a read index into the compressed chunk buffer without bounding it against the buffer's actual size. This allows attackers to cause an out-of-bounds heap read, and in constrained cases disclosure of adjacent heap memory into decompressed dataset values, via a crafted HDF5 file whose N-Bit filter parameters describe more decompressed data than the stored compressed chunk actually contains, triggered via H5Dread, e.g. by the h5ls or h5repack tools.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-06 14:29 UTC
CWE
- CWE-125 - Out-of-bounds read
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The HDF Group | HDF5 |
Affected:
<=2.3.0
|
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CVE-2026-18790 (GCVE-0-2026-18790)
Vulnerability from cvelistv5 – Published: 2026-08-04 17:30 – Updated: 2026-08-04 19:51
VLAI
EPSS
VEX
Title
Systerel S2OPC DeleteMonitoredItemsRequest state_machine.c out-of-bounds
Summary
A weakness has been identified in Systerel S2OPC up to 1.7.3. This affects the function LockedStaMac_ProcessMsg_DeleteMonitoredItemsResponse of the file src/ClientServer/frontend/client_wrapper/internal/state_machine.c of the component DeleteMonitoredItemsRequest Handler. This manipulation causes out-of-bounds read. The attack can only be executed locally. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-04 19:15 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/385790 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/385790/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-18790 | third-party-advisory |
| https://vuldb.com/submit/857761 | third-party-advisory |
| https://github.com/gff-cw/information/issues/13 | issue-tracking |
| https://github.com/user-attachments/files/2890737… | exploit |
Impacted products
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CVE-2026-18694 (GCVE-0-2026-18694)
Vulnerability from cvelistv5 – Published: 2026-08-11 18:42 – Updated: 2026-08-11 20:22
VLAI
EPSS
VEX
Title
Out-of-Bounds Read in MongoDB Geospatial Query Processing Leads to Denial of Service and Potential Memory Disclosure
Summary
An issue in MongoDB Server's geospatial query processing could allow an authenticated user with write privileges to cause certain malformed geometry data to be stored and later processed without proper validation. Subsequent queries against this data could then result in the server accessing memory outside its intended bounds. This could result in a server crash (denial of service) and may expose a limited amount of server process memory.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 20:22 UTC
CWE
- CWE-125 - Out-of-bounds Read
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) Affected: 7.0 , < 7.0.40 (semver) |
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CVE-2026-18688 (GCVE-0-2026-18688)
Vulnerability from cvelistv5 – Published: 2026-08-11 18:36 – Updated: 2026-08-11 20:26
VLAI
EPSS
VEX
Title
Out-of-Bounds Read in MongoDB Aggregation Framework Leads to Denial of Service and Potential Memory Disclosure
Summary
An issue in MongoDB Server's aggregation framework could allow an authenticated user to trigger an out-of-bounds memory read by providing a specially formed numeric parameter in a certain aggregation pipeline stage. This could result in a server crash (denial of service) and may potentially expose a limited amount of memory contents.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 20:26 UTC
CWE
- CWE-125 - Out-of-bounds Read
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) Affected: 7.0 , < 7.0.40 (semver) |
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CVE-2026-18635 (GCVE-0-2026-18635)
Vulnerability from cvelistv5 – Published: 2026-08-11 14:15 – Updated: 2026-08-12 18:36
VLAI
EPSS
VEX
Title
Velociraptor query plugin allows impersonation in other orgs
Summary
Velociraptor's VQL has a query() plugin which allows running a VQL query in a different org or user context. To be able to run as a different user, the calling user needs to have the IMPERSONATE permission (usually only given to administrators). Velociraptor versions prior to 0.77.2 evaluate this permission against the caller's org instead of against the target org.
This allows an administrator in one org to impersonate another user in another org, in which they may not have the IMPERSONATE permission.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 18:36 UTC
CWE
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Rapid7 | Velociraptor |
Affected:
0 , < 0.77.2
(semver)
|
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CVE-2026-18583 (GCVE-0-2026-18583)
Vulnerability from cvelistv5 – Published: 2026-08-03 04:15 – Updated: 2026-08-03 19:58 X_Open Source
VLAI
EPSS
VEX
Title
mz-automation libiec61850 MMS Request mms_mapping.c checkDataSetAccess out-of-bounds
Summary
A weakness has been identified in mz-automation libiec61850 up to 1.6.1. This issue affects the function checkDataSetAccess of the file src/iec61850/server/mms_mapping/mms_mapping.c of the component MMS Request Handler. This manipulation causes out-of-bounds read. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 1.6.2 is capable of addressing this issue. Patch name: 062062daf4cb50c7aa76e01d6fb4d58fc9278a7d. Upgrading the affected component is recommended. The vendor was contacted early about this disclosure.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-03 19:58 UTC
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/385412 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/385412/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-18583 | third-party-advisory |
| https://vuldb.com/submit/844921 | third-party-advisory |
| https://github.com/mz-automation/libiec61850/secu… | related |
| https://github.com/gff-cw/information/issues/3 | exploitissue-tracking |
| https://github.com/mz-automation/libiec61850/comm… | patch |
| https://github.com/mz-automation/libiec61850/rele… | patch |
| https://github.com/mz-automation/libiec61850/ | product |
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-2026-18125 (GCVE-0-2026-18125)
Vulnerability from cvelistv5 – Published: 2026-08-11 14:18 – Updated: 2026-08-11 14:49
VLAI
EPSS
VEX
Summary
An out-of-bounds read in the Agent of Ivanti Endpoint Manager before version 2024 SU7 allows a remote unauthenticated attacker to crash an agent service.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 14:49 UTC
CWE
- CWE-125 - Out-of-bounds read
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Ivanti | Endpoint Manager |
Unaffected:
2024 SU7
(custom)
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CVE-2026-18020 (GCVE-0-2026-18020)
Vulnerability from cvelistv5 – Published: 2026-08-13 20:41 – Updated: 2026-08-14 18:07
VLAI
EPSS
VEX
Title
IBM i is Affected By Multiple Vulnerabilities in NetServer
Summary
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service due to an off-by-one error in bounds checking.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 17:41 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7283573 | vendor-advisorypatch |
Impacted products
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| Vendor | Product | Version | |
|---|---|---|---|
| IBM | i |
Affected:
7.6
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CVE-2026-17649 (GCVE-0-2026-17649)
Vulnerability from cvelistv5 – Published: 2026-08-13 20:41 – Updated: 2026-08-14 16:31
VLAI
EPSS
VEX
Title
IBM i is Affected By Multiple Vulnerabilities in NetServer
Summary
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to obtain sensitive information due to an out-of-bounds read.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 16:31 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7283573 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | i |
Affected:
7.6
Affected: 7.5 Affected: 7.4 Affected: 7.3 cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.6.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.5.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.4.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.3:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.3.0:*:*:*:*:*:*:* |
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"value": "\u003cp\u003e\u003cstrong\u003eIBM strongly recommends addressing the vulnerability now.\u003c/strong\u003e\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003cthead\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eIBM i Release\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003e5770-999\u003cbr/\u003ePTF Number(s)\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003ePTF Download Link(s)\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e7.6\u003c/td\u003e\u003ctd\u003eMJ10939\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=MJ10939\" rel=\"noopener noreferrer nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=MJ10939\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.5\u003c/td\u003e\u003ctd\u003eMJ10938\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=MJ10938\" rel=\"noopener noreferrer nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=MJ10938\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.4\u003c/td\u003e\u003ctd\u003eMJ10937\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=MJ10937\" rel=\"noopener noreferrer nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=MJ10937\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.3\u003c/td\u003e\u003ctd\u003eMJ10936\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=MJ10936\" rel=\"noopener noreferrer nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=MJ10936\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003eIBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.\u003c/p\u003e"
}
],
"value": "IBM strongly recommends addressing the vulnerability now.\n\nIBM i Release5770-999\nPTF Number(s)PTF Download Link(s)7.6MJ10939 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ10939 7.5MJ10938 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ10938 7.4MJ10937 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ10937 7.3MJ10936 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ10936 \n\n\n\nIBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products."
}
],
"title": "IBM i is Affected By Multiple Vulnerabilities in NetServer"
}
},
"cveMetadata": {
"assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
"assignerShortName": "ibm",
"cveId": "CVE-2026-17649",
"datePublished": "2026-08-13T20:41:09.892Z",
"dateReserved": "2026-07-27T22:37:32.167Z",
"dateUpdated": "2026-08-14T16:31:43.096Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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.