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.

4528 vulnerabilities reference this CWE, most recent first.

CVE-2026-107896 (GCVE-0-2026-107896)

Vulnerability from cvelistv5 – Published: 2026-10-26 06:26 – Updated: 2026-10-26 14:35
VLAI
Summary
V-SFT provided by FUJI ELECTRIC CO., LTD. contains an out-of-bounds read vulnerability in VS6ComFile!load_gr_item. Opening a crafted V7 file may lead to information exposure or arbitrary code execution on the affected product.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.4 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-26 13:30 UTC
CWE
Assigner
jpcert CNA
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-107837 (GCVE-0-2026-107837)

Vulnerability from cvelistv5 – Published: 2026-10-09 17:53 – Updated: 2026-10-13 20:26
VLAI
Title
RIOT: Out-of-Bounds Read in RIOT OS 6LoWPAN SFF Fragment Handling
Summary
RIOT is an open-source microcontroller operating system designed for Internet of Things devices and other embedded systems. In 2026.07 and earlier, _receive() in sys/net/gnrc/network_layer/sixlowpan/gnrc_sixlowpan.c can route an undersized packet into SFF fragment handling after only a minimal payload check. The code then interprets the packet as a sixlowpan_frag_t or larger fragment header without verifying that the packet snip contains the required bytes. A remote attacker can send a malformed 6LoWPAN fragment that causes gnrc_sixlowpan_frag_recv() to read beyond the packet buffer, potentially disclosing memory and crashing the network stack. No fixed repository release is available as of this review.
Severity
8.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 20:19 UTC
CWE
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
RIOT-OS RIOT Affected: <= 2026.07
Create a notification for this product.
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CVE-2026-107836 (GCVE-0-2026-107836)

Vulnerability from cvelistv5 – Published: 2026-10-09 17:49 – Updated: 2026-10-09 18:00
VLAI
Title
RIOT: nanoCoAP Block2 client slice handling underflows on inconsistent server-controlled block size
Summary
RIOT is an open-source microcontroller operating system designed for Internet of Things devices and other embedded systems. In 2026.07 and earlier, the nanoCoAP client function nanocoap_sock_get_slice() in sys/net/application_layer/nanocoap/sock.c accepts a Block2 response when _block_cb() sees the expected block number without also verifying that the server-controlled szx and derived offset match the requested block geometry. A malicious CoAP server can return the expected block number with a larger block size, causing the derived offset to exceed the client slice offset and making ctx->offset - offset underflow in _2buf_slice(). The resulting buffer-relative calculation can read before the payload buffer and crash the client, causing denial of service and potentially exposing adjacent memory. No fixed release is available as of this review.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-09 17:59 UTC
CWE
  • CWE-125 - Out-of-bounds Read
  • CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
RIOT-OS RIOT Affected: <= 2026.07
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-107817 (GCVE-0-2026-107817)

Vulnerability from cvelistv5 – Published: 2026-10-09 17:22 – Updated: 2026-10-13 17:04
VLAI
Title
MariaDB: mysql_json plugin OOB reads
Summary
MariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, the mysql_json plugin assumed that imported MySQL tables contained valid MySQL binary JSON data. A specially prepared MySQL table containing invalid JSON data could cause out-of-bounds reads, information disclosure, or a server crash. This issue is fixed in versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2.
Severity
4.4 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 17:03 UTC
CWE
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
MariaDB server Affected: >= 10.6.1, < 10.6.28
Affected: >= 10.11.1, < 10.11.19
Affected: >= 11.4.1, < 11.4.13
Affected: >= 11.8.1, < 11.8.9
Affected: >= 12.3.1, < 12.3.3
Affected: >= 13.0.1, < 13.0.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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      ],
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      },
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CVE-2026-107816 (GCVE-0-2026-107816)

Vulnerability from cvelistv5 – Published: 2026-10-09 17:19 – Updated: 2026-10-13 20:27
VLAI
Title
MariaDB: `qc_info` plugin can do OOB reads if query contains \0
Summary
MariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, the qc_info plugin could be confused by a query containing embedded null bytes. Reading information_schema.query_cache_info after such a query was cached could access data beyond the end of a heap-allocated buffer, potentially disclosing adjacent memory or crashing the server. This issue is fixed in versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2.
Severity
6.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 20:13 UTC
CWE
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
MariaDB server Affected: >= 10.6.1, < 10.6.28
Affected: >= 10.11.1, < 10.11.19
Affected: >= 11.4.1, < 11.4.13
Affected: >= 11.8.1, < 11.8.9
Affected: >= 12.3.1, < 12.3.3
Affected: >= 13.0.1, < 13.0.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-107738 (GCVE-0-2026-107738)

Vulnerability from cvelistv5 – Published: 2026-10-08 22:35 – Updated: 2026-10-14 01:36
VLAI
Title
SumatraPDF: Untrusted binary record offset used without lower-bound validation
Summary
SumatraPDF is a multi-format reader for Windows. In 3.6.1 and earlier, ChmFile::GetCharZ() narrows file-controlled unsigned string offsets from /#WINDOWS and /#IVB to signed integers without a lower-bound check. An offset that becomes negative can make the function read before the /#STRINGS buffer, causing deterministic application termination. No broader impact is claimed beyond the advisory-supported conditions. No fixed version is available as of this review.
Severity
6.8 (Medium)
CVSS:4.0/AV:L/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 · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 01:35 UTC
CWE
Assigner
GitHub_M CNA
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-107731 (GCVE-0-2026-107731)

Vulnerability from cvelistv5 – Published: 2026-10-08 22:20 – Updated: 2026-10-09 15:12
VLAI
Title
SumatraPDF: LIT parser range-validation flaws cause invalid-pointer reads and denial of service
Summary
SumatraPDF is a multi-format reader for Windows. In 3.7.0.22298, four independently reachable range-validation variants in src/LitDoc.cpp allow file-controlled offsets and sizes to overflow, narrow to negative values, or wrap before incomplete bounds checks. The affected calculations include contentOffset, the directory expression dirOff64 + dirLen64, and the decoded-section offset + size, along with secondary-header range handling. Opening a crafted LIT file that reaches one of these variants can cause invalid pointer reads and deterministic application termination. No broader impact is claimed beyond the advisory-supported conditions. No fixed version is available as of this review.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-09 14:54 UTC
CWE
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
sumatrapdfreader sumatrapdf Affected: <= 3.7.0.22298
Create a notification for this product.
Show details on NVD website
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CVE-2026-107729 (GCVE-0-2026-107729)

Vulnerability from cvelistv5 – Published: 2026-10-08 22:18 – Updated: 2026-10-09 15:46
VLAI
Title
SumatraPDF: Unsigned-to-signed hdrLen validation bypass in SumatraPDF MOBI parsing causes out-of-bounds read
Summary
SumatraPDF is a multi-format reader for Windows. In 3.7.0.22298, src/MobiDoc.cpp narrows the untrusted unsigned mobiHdr.hdrLen field to a signed integer for validation; values above INT_MAX become negative and bypass the upper-bound check. When the EXTH flag is set, the original unsigned value is reused as a pointer offset, causing DecodeExthHeader() to read beyond the record buffer. Opening a crafted MOBI file can reliably terminate the application with a native access violation; no code execution, information disclosure, or integrity impact has been demonstrated. No fixed version is available as of this review.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-09 15:46 UTC
CWE
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
sumatrapdfreader sumatrapdf Affected: <= 3.7.0.22298
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-107634 (GCVE-0-2026-107634)

Vulnerability from cvelistv5 – Published: 2026-10-08 14:10 – Updated: 2026-10-10 03:07
VLAI
Title
Dislocker through 0.7.3 Heap Out-of-Bounds Read via BitLocker Metadata Dataset Size
Summary
Dislocker through 0.7.3 contains a heap out-of-bounds read vulnerability in get_dataset() and get_next_datum() that never validate dataset and datum sizes against the metadata allocation. Attackers can craft a BitLocker volume image with inflated dataset or datum sizes that, when opened or mounted, crashes dislocker or discloses adjacent heap memory.
Severity
6.9 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
6.1 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-10 03:07 UTC
CWE
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
Aorimn dislocker Affected: 0 , ≤ 0.7.3 (custom)
Create a notification for this product.
Date Public
2026-08-31 00:00
Credits
Tristan Madani (@TristanInSec), Talence Security
Show details on NVD website
To clipboard 

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CVE-2026-107614 (GCVE-0-2026-107614)

Vulnerability from cvelistv5 – Published: 2026-10-08 13:39 – Updated: 2026-10-08 14:01
VLAI
Title
Integer underflow in TightVNC Server cursor shape trimming leads to out-of-bounds read
Summary
An integer underflow in WinCursorShapeUtils::trimTransparent() in GlavSoft TightVNC Server for Windows before 2.8.88 allows a local authenticated user to crash the server, and potentially read out-of-bounds memory, by causing a cursor shape with a width or height of zero to be processed on the DXGI capture path. The loop bound width - 1 wraps to 0xFFFFFFFF, producing an access roughly 4 GB beyond the 64 KB cursor buffer; a monochrome cursor of height 1 also becomes 0 because getCursorHeight() halves the height in place.
Severity
6.1 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 14:00 UTC
CWE
  • CWE-191 - Integer Underflow (Wrap or Wraparound)
  • CWE-125 - Out-of-bounds Read
Assigner
securin CNA
References
Impacted products
Vendor Product Version
GlavSoft TightVNC Affected: 0 , < 2.8.88 (custom)
Create a notification for this product.
Credits
Arjun Basnet from Securin
Show details on NVD website
To clipboard 

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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.

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