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.

12716 vulnerabilities reference this CWE, most recent first.

CVE-2026-63517 (GCVE-0-2026-63517)

Vulnerability from cvelistv5 – Published: 2026-08-11 17:04 – Updated: 2026-10-08 18:11
VLAI
Title
Microsoft Office Graphics Component Information Disclosure Vulnerability
Summary
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 13:22 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
Microsoft Microsoft 365 Apps for Enterprise Affected: 16.0.1 , < https://aka.ms/OfficeSecurityReleases (custom)
Create a notification for this product.
Microsoft Microsoft Office 2016 Affected: 16.0.0 , < 16.0.5565.1001 (custom)
Create a notification for this product.
Microsoft Microsoft Office 2019 Affected: 19.0.0 , < https://aka.ms/OfficeSecurityReleases (custom)
Create a notification for this product.
Microsoft Microsoft Office 365 for Mac Affected: 1.0.0 , < 16.112.26081010 (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC 2021 Affected: 16.0.1 , < https://aka.ms/OfficeSecurityReleases (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC 2024 Affected: 16.0.0 , < https://aka.ms/OfficeSecurityReleases (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC for Mac 2021 Affected: 16.0.1 , < 16.112.26081010 (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC for Mac 2024 Affected: 16.0.0 , < 16.112.26081010 (custom)
Create a notification for this product.
Date Public
2026-08-11 14:00
Show details on NVD website
To clipboard 

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CVE-2026-63515 (GCVE-0-2026-63515)

Vulnerability from cvelistv5 – Published: 2026-08-11 17:04 – Updated: 2026-10-08 18:11
VLAI
Title
Microsoft Office Remote Code Execution Vulnerability
Summary
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-07 00:00 UTC
CWE
  • CWE-125 - Out-of-bounds Read
  • CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
References
Impacted products
Vendor Product Version
Microsoft Microsoft 365 Apps for Enterprise Affected: 16.0.1 , < https://aka.ms/OfficeSecurityReleases (custom)
Create a notification for this product.
Microsoft Microsoft Office 2016 Affected: 16.0.0 , < 16.0.5565.1001 (custom)
Create a notification for this product.
Microsoft Microsoft Office 2019 Affected: 19.0.0 , < https://aka.ms/OfficeSecurityReleases (custom)
Create a notification for this product.
Microsoft Microsoft Office 365 for Mac Affected: 1.0.0 , < 16.112.26081010 (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC 2021 Affected: 16.0.1 , < https://aka.ms/OfficeSecurityReleases (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC 2024 Affected: 16.0.0 , < https://aka.ms/OfficeSecurityReleases (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC for Mac 2021 Affected: 16.0.1 , < 16.112.26081010 (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC for Mac 2024 Affected: 16.0.0 , < 16.112.26081010 (custom)
Create a notification for this product.
Date Public
2026-08-11 14:00
Show details on NVD website
To clipboard 

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CVE-2026-63420 (GCVE-0-2026-63420)

Vulnerability from cvelistv5 – Published: 2026-09-18 15:36 – Updated: 2026-09-22 14:45
VLAI
Title
OpenImageIO: PSD RawColor indexed image out-of-bounds read in `interleave_row`
Summary
OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1, An indexed psd with transparency metadata creates fewer stored channel_buffers than the spec.nchannels value advertised by the rawcolor path. when oiio:rawcolor or psd:rawdata is enabled, psdinput::read_native_scanline() passes spec.nchannels to psdinput::interleave_row(), which indexes beyond channel_buffers, resulting in a heap out-of-bounds read and process crash. The affected implementation is identified by src/psd.imageio/psdinput.cpp, PSDInput::read_native_scanline(), PSDInput::interleave_row(), oiio:RawColor, psd:RawData, channel_buffers, and spec.nchannels, which define the relevant source path, functions, state, and trigger. This issue is fixed in versions 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1.
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: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 14:44 UTC
CWE
  • CWE-125 - Out-of-bounds Read
  • CWE-129 - Improper Validation of Array Index
Assigner
References
Impacted products
Vendor Product Version
AcademySoftwareFoundation OpenImageIO Affected: < 3.0.21.0
Affected: >= 3.1.0.0, < 3.1.16.0
Affected: >= 3.2.0.0-dev, < 3.2.0.3-beta1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-63409 (GCVE-0-2026-63409)

Vulnerability from cvelistv5 – Published: 2026-08-17 20:57 – Updated: 2026-08-18 15:18
VLAI
Title
Deskflow: Odd-length DSOP options vector causes out-of-bounds read in Deskflow client
Summary
Deskflow is a keyboard and mouse sharing app. From 1.17.0 until continuous build 1.26.0.296, a malicious Deskflow server can send an odd-length DSOP vector to ServerProxy::setOptions() in src/lib/client/ServerProxy.cpp, causing the missing value after the final option key to be read beyond the vector during the PacketStreamFilter::filterEvent to ServerProxy::handleData() to ServerProxy::parseHandshakeMessage() call chain and crash the connected client. This issue is fixed in continuous build 1.26.0.296.
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: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 15:17 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
deskflow deskflow Affected: >= 1.17.0, < 1.26.0.296
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-63383 (GCVE-0-2026-63383)

Vulnerability from cvelistv5 – Published: 2026-08-20 17:48 – Updated: 2026-08-20 18:41
VLAI
Title
Libevent: decode_tag_internal() can lead to out-of-bounds read
Summary
Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-alpha, libevent can read beyond a contiguous evbuffer region in event_tagging.c when decode_tag_internal requests at most five bytes from evbuffer_pullup but iterates using the full logical buffer length. A fragmented evbuffer containing a six-byte malformed tag can therefore advance past the pullup window and trigger an out-of-bounds read, which can crash a process that decodes attacker-controlled tagged RPC data. This issue is fixed in versions 2.1.13 and 2.2.2-alpha.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 18:37 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
libevent libevent Affected: >= 2.2.0-alpha, < 2.2.2-alpha
Affected: < 2.1.13
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-63279 (GCVE-0-2026-63279)

Vulnerability from cvelistv5 – Published: 2026-09-22 11:10 – Updated: 2026-09-22 12:16
VLAI
Title
Out of bounds read in PICT image import
Summary
LibreOffice can import PICT images, which may be embedded in documents. An out of bounds read existed when importing an image that uses a colour palette. The palette index held in the image data was used without being checked against the number of entries the palette has, so an index past the last entry read memory outside the palette. In fixed versions the palette index is limited to the entries present.
Severity
5.4 (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/E:P
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 12:08 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
The Document Foundation LibreOffice Affected: 26.2 , < < 26.2.5 (26.2 series)
Create a notification for this product.
Date Public
2026-09-21 23:59
Credits
Himanshu Anand Caolán McNamara of Collabora Productivity
Show details on NVD website
To clipboard 

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CVE-2026-63274 (GCVE-0-2026-63274)

Vulnerability from cvelistv5 – Published: 2026-09-22 11:10 – Updated: 2026-09-28 14:01
VLAI
Title
Heap buffer overflow in PDF import stream handling
Summary
LibreOffice Draw can import PDF documents. A heap buffer overflow existed when importing a stream object. The length of the stream was taken from the object's own dictionary and was not checked against the number of bytes actually present, so copying the stream read and wrote past the end of the buffer holding it. In fixed versions the declared length is clamped to the bytes actually read.
Severity
5.4 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 12:25 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
The Document Foundation LibreOffice Affected: 26.2 , < < 26.2.5 (26.2 series)
Create a notification for this product.
Date Public
2026-09-21 23:59
Credits
Claude, found by Anthropic using agents to study the security of open-source projects Ada Logics, validating and reporting Anonymous working with TrendAI Zero Day Initiative Caolán McNamara of Collabora Productivity
Show details on NVD website
To clipboard 

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CVE-2026-63272 (GCVE-0-2026-63272)

Vulnerability from cvelistv5 – Published: 2026-09-22 11:10 – Updated: 2026-09-22 12:28
VLAI
Title
Heap buffer overflow in WMF text record import
Summary
LibreOffice can import WMF graphics, which may be embedded in documents. A heap buffer overflow existed when importing a text record that carries its own character advance widths. The count of advance values and the length of the text were read separately from the file and were not required to agree, so drawing the text walked the advance array by character position and ran past its end when the array was the shorter of the two. In fixed versions an advance array shorter than its text is ignored.
Severity
5.4 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 12:28 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
The Document Foundation LibreOffice Affected: 26.2 , < < 26.2.5 (26.2 series)
Create a notification for this product.
Date Public
2026-09-21 23:59
Credits
Claude, found by Anthropic using agents to study the security of open-source projects Ada Logics, validating and reporting Caolán McNamara of Collabora Productivity
Show details on NVD website
To clipboard 

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CVE-2026-63033 (GCVE-0-2026-63033)

Vulnerability from cvelistv5 – Published: 2026-07-30 22:54 – Updated: 2026-07-31 19:23
VLAI
Title
MZ Automation lib60870 Out-of-bounds Read
Summary
A crafted IEC 60870-5-104 I-frame with a declared object count exceeding what fits in the ASDU body causes InformationObject_ParseObjectAddress to read one byte past the end of the heap-allocated message buffer.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-31 19:23 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
MZ Automation lib60870 Affected: 2.4.0
Unaffected: 2.4.1
Create a notification for this product.
Credits
arun babu puthuparambil of Central Power Research Institute, Bengaluru, India reported this vulnerability to CISA.
Show details on NVD website
To clipboard 

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CVE-2026-62959 (GCVE-0-2026-62959)

Vulnerability from cvelistv5 – Published: 2026-07-31 19:57 – Updated: 2026-07-31 23:34
VLAI
Title
Coturn: Pre-authentication heap memory disclosure in ACME redirect (`try_acme_redirect`)
Summary
Coturn is a free open source implementation of TURN and STUN Server. From 4.5.2 through 4.14.0, when Coturn is started with --acme-redirect <URL> and exposes a plaintext-TCP listener, an unauthenticated remote client can send a single ordinary HTTP GET request and receive a 301 response whose Location header contains up to ~870 bytes of adjacent process heap memory. The leaked region is a recycled network receive buffer that is reused without being zeroed, so on a busy server it can contain data from other clients' requests (TURN credentials, OAuth tokens, relayed payloads). Root cause is a signed→unsigned conversion. This issue is fixed in version 4.15.0.
Severity
8.2 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-31 23:34 UTC
CWE
  • CWE-125 - Out-of-bounds Read
  • CWE-195 - Signed to Unsigned Conversion Error
Assigner
References
Impacted products
Vendor Product Version
coturn coturn Affected: >= 4.5.2, < 4.15.0
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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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