Common Weakness Enumeration

CWE-125

Allowed

Out-of-bounds Read

Abstraction: Base · Status: Draft

API response cwe.mitre.org

The product reads data past the end, or before the beginning, of the intended buffer.

11536 vulnerabilities reference this CWE, most recent first.

CVE-2026-71498 (GCVE-0-2026-71498)

Vulnerability from cvelistv5 – Published: 2026-08-06 21:26 – Updated: 2026-08-07 17:08
VLAI
Title
node-re2: Out-of-bounds heap read in `replace`/`split` via a `Buffer` ending in a truncated multi-byte UTF-8 character → adjacent heap memory disclosed to JavaScript
Summary
node-re2 provides RE2 regular expression bindings for Node.js. Prior to version 1.26.1, passing a Buffer whose final bytes form a truncated (incomplete) multi-byte UTF-8 sequence could cause the native binding to read past the end of the allocated buffer while attempting to decode the final, incomplete code point. This could result in an out-of-bounds read and potential disclosure of adjacent memory contents. This issue is fixed in version 1.26.1.
Severity
5.1 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
uhop node-re2 Affected: < 1.26.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-71256 (GCVE-0-2026-71256)

Vulnerability from cvelistv5 – Published: 2026-08-05 11:44 – Updated: 2026-08-05 12:52
VLAI
Title
nanoMODBUS Client-Side Out-of-Bounds Read Leading to Wild-Pointer Write via object_id
Summary
nanoMODBUS through v1.23.0 contains an out-of-bounds stack read leading to a wild-pointer write in nmbs_read_device_identification_basic() / recv_read_device_identification_res() in nanomodbus.c. A fixed 3-element stack array order[3] = {0,1,2} maps object IDs to buffer indices. The server-supplied object_id field (0-255, read directly from the wire) is used without any bounds check as buf_index = order[object_id]. When a malicious Modbus server sends a Read Device Identification response with object_id >= 3, this reads an out-of-bounds/garbage byte from the stack adjacent to order[], which is then used as an index into a 3-element buffers[] array of char* pointers. The resulting wild pointer is passed to strncpy() as the destination, causing an arbitrary-address write with server-controlled data.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
debevv nanoMODBUS Affected: 0 , ≤ 1.23.0 (semver)
Create a notification for this product.
Credits
Shukhratbek Uraiimov
Show details on NVD website
To clipboard 

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CVE-2026-70635 (GCVE-0-2026-70635)

Vulnerability from cvelistv5 – Published: 2026-08-06 16:54 – Updated: 2026-08-07 17:13 X_Open Source
VLAI
Title
TimescaleDB 2.29.1 Out-of-Bounds Read DoS via Bulk Dictionary Decompression Negative Index
Summary
TimescaleDB through 2.29.1, fixed in commit 517c13e, contains an out-of-bounds read vulnerability that allows authenticated attackers to cause query-result integrity failures or backend crashes by supplying a crafted Simple8b selector-11 value, which is stored in the signed int16 Arrow dictionary-index type and bypasses index validation checks in bulk text dictionary decompression. Attackers with direct DML access to a non-frozen physical compressed hypertable relation can trigger an out-of-bounds read before the base of the live offsets array through the VectorAgg single-text hashing strategy, resulting in incorrect aggregation output, backend SIGSEGV, or PostgreSQL crash recovery depending on build configuration.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
7.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-129 - Improper Validation of Array Index
  • CWE-125 - Out-of-bounds Read
Assigner
References
Impacted products
Vendor Product Version
timescale timescaledb Affected: 0 , ≤ 2.29.1 (semver)
Unaffected: 517c13e7cc6afadb4a7deaa7a5a5a29065e5b5a3 (git)
Create a notification for this product.
Date Public
2026-07-29 00:00
Credits
Mehmet Ince (@mdisec)
Show details on NVD website
To clipboard 

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CVE-2026-70634 (GCVE-0-2026-70634)

Vulnerability from cvelistv5 – Published: 2026-08-06 16:53 – Updated: 2026-08-07 17:13 X_Open Source
VLAI
Title
TimescaleDB 2.29.1 Out-of-Bounds Read Information Disclosure via Dictionary Compression Reverse Iterator
Summary
TimescaleDB through 2.29.1, fixed in commit 517c13e, contains an out-of-bounds read in the Dictionary compression reverse row iterator (tsl/src/compression/algorithms/dictionary.c). The forward path validates the decoded index; the reverse path uses an assertion compiled out of release builds, leaving the 64-bit Simple8b index unvalidated and the read offset attacker-controlled. Attackers with DML access to a physical compressed relation can store a crafted datum and run a reverse-order scan. With a pass-by-value column type the out-of-bounds Datum is returned to the client as a normal column value, disclosing backend memory including the shared buffer pool, which SQL access control does not cover.
Severity
7.2 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-129 - Improper Validation of Array Index
  • CWE-125 - Out-of-bounds Read
Assigner
References
Impacted products
Vendor Product Version
timescale timescaledb Affected: 0 , ≤ 2.29.1 (semver)
Unaffected: 517c13e7cc6afadb4a7deaa7a5a5a29065e5b5a3 (git)
Create a notification for this product.
Date Public
2026-07-29 00:00
Credits
Mehmet Ince (@mdisec)
Show details on NVD website
To clipboard 

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CVE-2026-70633 (GCVE-0-2026-70633)

Vulnerability from cvelistv5 – Published: 2026-08-06 16:51 – Updated: 2026-08-07 17:12 X_Open Source
VLAI
Title
TimescaleDB 2.29.1 Out-of-Bounds Read DoS via Gorilla Compression Reverse Iterator
Summary
TimescaleDB through 2.29.1, fixed in commit 517c13e, contains an out-of-bounds read vulnerability in the Gorilla compression reverse row iterator that allows authenticated attackers to cause a denial of service by storing a crafted compressed datum with an internally inconsistent BitArray. Attackers with DML access to a compressed hypertable can trigger an unsigned integer wraparound in the reverse iterator bucket index computation, causing a read beyond the end of the bucket array, resulting in a SIGSEGV crash that can be repeatedly triggered on each subsequent reverse-order scan.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-191 - Integer Underflow (Wrap or Wraparound)
  • CWE-125 - Out-of-bounds Read
Assigner
References
Impacted products
Vendor Product Version
timescale timescaledb Affected: 0 , ≤ 2.29.1 (semver)
Unaffected: 517c13e7cc6afadb4a7deaa7a5a5a29065e5b5a3 (git)
Create a notification for this product.
Date Public
2026-07-29 00:00
Credits
Mehmet Ince (@mdisec)
Show details on NVD website
To clipboard 

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CVE-2026-70598 (GCVE-0-2026-70598)

Vulnerability from cvelistv5 – Published: 2026-08-05 15:27 – Updated: 2026-08-05 18:15
VLAI
Title
Electron: Off-screen rendering trusts GPU-supplied geometry over shared-memory size
Summary
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.10, 40.9.0, 41.2.1, and 42.0.0-beta.3, offscreen rendering frame data received from the GPU process was not fully validated by the main process. A compromised GPU process could cause the main process to read out-of-bounds memory while producing paint event images, disclosing memory or crashing the app. This issue is fixed in 39.8.10, 40.9.0, 41.2.1, and 42.0.0-beta.3.
Severity
3.9 (Low)
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
electron electron Affected: < 39.8.10
Affected: >= 40.0.0-alpha.1, < 40.9.0
Affected: >= 41.0.0-alpha.1, < 41.2.1
Affected: >= 42.0.0-alpha.1, < 42.0.0-beta.3
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-70368 (GCVE-0-2026-70368)

Vulnerability from cvelistv5 – Published: 2026-08-04 13:52 – Updated: 2026-08-06 07:33
VLAI
Title
Stunnel: stack-based out-of-bounds read/write in stunnel s_vlog via oversized log message
Summary
A stack-based out-of-bounds read vulnerability exists in the "s_vlog" function of stunnel, when handling oversized log messages via "vsnprintf". A remote attacker with network access to a stunnel service can send protocol inputs that trigger a log message longer than 1024 bytes, leading to an out-of-bounds stack read and a potential crash. In certain corner cases, the same vulnerability could be used to replace a series of trailing "\n" characters with "\0".
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://access.redhat.com/security/cve/CVE-2026-70368 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2462029 issue-trackingx_refsource_REDHAT
Impacted products
Date Public
2026-08-04 10:30
Credits
This issue was discovered by Found by AISLE in partnership with Red Hat.
Show details on NVD website
To clipboard 

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CVE-2026-69244 (GCVE-0-2026-69244)

Vulnerability from cvelistv5 – Published: 2026-08-03 20:50 – Updated: 2026-08-04 14:13
VLAI
Title
AIOHTTP: Out-of-bounds heap read in C HTTP response parser error path (malformed chunked response)
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.3, an out-of-bounds heap read could occur in the C response parser while building an error message for a malformed response. An attacker controlled server, or possibly an accidental response, could trigger a DoS in the client. The vulnerable path was error message construction in aiohttp/_http_parser.pyx, where an llhttp error-position pointer was used to build a snippet for malformed chunked responses and malformed request or response bytes at the buffer end. This issue is fixed in version 3.14.3.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
aio-libs aiohttp Affected: < 3.14.3
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-68743 (GCVE-0-2026-68743)

Vulnerability from cvelistv5 – Published: 2026-08-04 18:37 – Updated: 2026-08-04 19:10
VLAI
Title
Sssd: sssd: pam responder out-of-bounds read via unchecked auth_token_length in protocol v1
Summary
A flaw was found in SSSD. The extract_authtok_v1() function in the PAM responder does not validate the auth_token_length field against the remaining buffer size before processing. A local attacker can exploit this via a crafted protocol v1 request to the PAM responder socket, causing an out-of-bounds read and process crash, resulting in a denial of service.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
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https://bugzilla.redhat.com/show_bug.cgi?id=2509760 issue-trackingx_refsource_REDHAT
Impacted products
Date Public
2026-08-03 07:34
Credits
Red Hat would like to thank Vivek Parikh (BreachX Zero Day Labs) for reporting this issue.
Show details on NVD website
To clipboard 

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CVE-2026-68742 (GCVE-0-2026-68742)

Vulnerability from cvelistv5 – Published: 2026-08-03 09:53 – Updated: 2026-08-03 20:00
VLAI
Title
Sssd: sssd: nss responder out-of-bounds read via unchecked addrlen in gethostbyaddr
Summary
A flaw was found in SSSD. The sss_nss_protocol_parse_addr() function in the NSS responder does not validate the addrlen field against the remaining packet body size. A local attacker can exploit this via a crafted GETHOSTBYADDR request to the NSS responder socket, causing an out-of-bounds read and process crash, resulting in a denial of service.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
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https://bugzilla.redhat.com/show_bug.cgi?id=2509762 issue-trackingx_refsource_REDHAT
Impacted products
Date Public
2026-08-03 07:36
Credits
Red Hat would like to thank Vivek Parikh (BreachX Zero Day Labs) for reporting this issue.
Show details on NVD website
To clipboard 

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          "time": "2026-07-28T00:00:00.000Z",
          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2026-08-03T07:36:56.522Z",
          "value": "Made public."
        }
      ],
      "title": "Sssd: sssd: nss responder out-of-bounds read via unchecked addrlen in gethostbyaddr",
      "workarounds": [
        {
          "lang": "en",
          "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."
        }
      ],
      "x_generator": {
        "engine": "cvelib 1.8.0"
      },
      "x_redhatCweChain": "CWE-125: Out-of-bounds Read"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2026-68742",
    "datePublished": "2026-08-03T09:53:14.983Z",
    "dateReserved": "2026-07-31T12:44:34.409Z",
    "dateUpdated": "2026-08-03T20:00:25.152Z",
    "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.

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