Weakness (CWE)
CWE-125: Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
How to prevent it (2 mitigations)
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Implementation
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.
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Architecture and Design
Use a language that provides appropriate memory abstractions.
Source: MITRE CWE-125
6,278 results · Feed
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Medium 5.5
pillow_heif Has Integer Overflow in Encode Path Buffer Validation that Leads to Heap Out-of-Bounds Read
pillow_heif is a Python library for working with HEIF images and plugin for Pillow. Prior to version 1.3.0, an integer overflow in the encode path buffer validation of `_pillow_heif.c` allows an attacker to bypass bounds checks by providing large image dimens…
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Low 2.7
VMware Workstation out-of-bound read vulnerability
Out-of-bound read vulnerability in VMware Workstation 25H1 and below on any platform allows an actor with non-administrative privileges on a guest VM to obtain limited information disclosure from the machine where VMware Workstation is installed.
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High 7.9CVE-2026-28364 Public exploit
In OCaml before 4.14.3 and 5.x before 5.4.1, a buffer over-read in Marshal deserialization (runtime/intern.c) enables r…
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Low 3.3
berry-lang berry be_lexer.c scan_string out-of-bounds
A vulnerability was determined in berry-lang berry up to 1.1.0. The affected element is the function scan_string of the file src/be_lexer.c. This manipulation causes out-of-bounds read. The attack requires local access. The exploit has been publicly disclosed…
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Low 3.3
libvips extract.c vips_extract_band_build out-of-bounds
A vulnerability has been found in libvips 8.19.0. This issue affects the function vips_extract_band_build of the file libvips/conversion/extract.c. The manipulation of the argument extract_band leads to out-of-bounds read. The attack needs to be performed loc…
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Low 3.3
libvips unpremultiply.c vips_unpremultiply_build out-of-bounds
A flaw has been found in libvips 8.19.0. This vulnerability affects the function vips_unpremultiply_build of the file libvips/conversion/unpremultiply.c. Executing a manipulation of the argument alpha_band can lead to out-of-bounds read. The attack needs to b…
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High 7.5CVE-2026-27831 Public exploit
rldns Vulnerable to Heap-based Out-of-Bounds Read
rldns is an open source DNS server. Version 1.3 has a heap-based out-of-bounds read that leads to denial of service. Version 1.4 contains a patch for the issue.
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Medium 5.1
NanaZip UFS Archive Parser Memory Corruption via Unvalidated Directory Record Length
NanaZip is an open source file archive. Starting in version 5.0.1252.0 and prior to versions 6.0.1638.0 and 6.5.1638.0, a memory corruption vulnerability in NanaZip’s UFS parser allows a crafted `.ufs/.ufs2/.img` file to trigger out-of-bounds memory access du…
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Medium 5.1
NanaZip .NET Single-File Manifest Parser Vulnerable to Out-of-Bounds Read via Unchecked RelativePathLength
NanaZip is an open source file archive. Starting in version 5.0.1252.0 and prior to versions 6.0.1638.0 and 6.5.1638.0, NanaZip’s `.NET Single File Application` parser has an out-of-bounds read vulnerability in manifest parsing. A crafted bundle can provide a…
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Medium 4.0
ImageMagick: Heap Buffer Over-read in WaveletDenoise when processing small images
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a heap buffer over-read vulnerability occurs when processing an image with small dimension using the `-wavelet-denoise` op…
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Medium 5.5
FreeRDP has global-buffer-overflow in xf_rail_server_execute_result
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, `xf_rail_server_execute_result` indexes the global `error_code_names[]` array (7 elements, indices 0–6) with an unchecked `execResult->execResult` value received from th…
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Medium 4.3
FreeRDP: vuln_1_15_1 RDPGFX WIRE_TO_SURFACE_2 Out-of-Bounds Read
FreeRDP is a free implementation of the Remote Desktop Protocol. Versions on the 2.x branch prior to to 2.11.8 and on the 3.x branch prior to 3.23.0 have an out-of-bounds read vulnerability in the FreeRDP client's RDPGFX channel that allows a malicious RDP se…
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High 7.1
iccDEV has HBO in CIccTagTextDescription::Release()
iccDEV provides a set of libraries and tools for working with ICC color management profiles. In versions up to and including 2.3.1.4, heap-buffer-overflow read occurs during CIccTagTextDescription::Release() when strlen() reads past a heap buffer while parsin…
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Medium 4.9
A post-authentication Out-of-bounds Read vulnerability in SonicOS allows a remote attacker to crash a firewall.
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Critical 9.8
Undefined behavior in the DOM: Core & HTML component
Undefined behavior in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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Medium 6.8
Out of bounds read vulnerability in grpcfuse kernel module
An out of bounds read vulnerability in the grpcfuse kernel module present in the Linux VM in Docker Desktop for Windows, Linux and macOS up to version 4.61.0 could allow a local attacker to cause an unspecified impact by writing to /proc/docker entries. The i…
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Medium 6.5
ImageMagick has heap overflow in pcd decoder that leads to out of bounds read.
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, ImageMagick lacks proper boundary checking when processing Huffman-coded data from PCD (Photo CD) files. The decoder conta…
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Medium 5.3
ImageMagick has heap buffer over-read in MAP image decoder
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a heap buffer over-read vulnerability exists in the MAP image decoder when processing crafted MAP files, potentially leadi…
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Medium 6.5
ImageMagick Has Heap Out-of-Bounds Read in DCM Decoder (ReadDCMImage)
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a heap out-of-bounds read vulnerability exists in the `coders/dcm.c` module. When processing DICOM files with a specific c…
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Medium 6.5
Imagemagick Has Global Buffer Overflow (OOB Read) via Negative Pixel Index in UIL and XPM Writer
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, the UIL and XPM image encoder do not validate the pixel index value returned by `GetPixelIndex()` before using it as an ar…
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High 7.5
ImageMagick has Possible Heap Information Disclosure in PSD ZIP Decompression
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a heap information disclosure vulnerability exists in ImageMagick's PSD (Adobe Photoshop) format handler. When processing …
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High 8.8
Out of bounds read and write in Tint in Google Chrome on Mac prior to 145.0.7632.116 allowed a remote attacker to perfo…
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High 8.8
Out of bounds read in Media in Google Chrome prior to 145.0.7632.116 allowed a remote attacker to perform an out of bou…
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High 7.5
Malformed Valkey Cluster bus message can lead to Remote DoS
Valkey is a distributed key-value database. Prior to versions 9.0.2, 8.1.6, 8.0.7, and 7.2.12, a malicious actor with access to the Valkey clusterbus port can send an invalid packet that may cause an out bound read, which might result in the system crashing. …
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Low 3.3
janet-lang janet handleattr specials.c janetc_varset out-of-bounds
A vulnerability was identified in janet-lang janet up to 1.40.1. Affected by this vulnerability is the function janetc_varset of the file src/core/specials.c of the component handleattr Handler. The manipulation leads to out-of-bounds read. The attack can onl…
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Low 3.3
wren-lang wren Source File wren_compiler.c peekChar out-of-bounds
A vulnerability was identified in wren-lang wren up to 0.4.0. This affects the function peekChar of the file src/vm/wren_compiler.c of the component Source File Parser. Such manipulation leads to out-of-bounds read. The attack needs to be performed locally. T…
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Low 3.7
EnOcean SmartServer IoT Out-of-bounds Read
A vulnerability exists in EnOcean SmartServer IoT version 4.60.009 and prior, which would allow remote attackers, in the LON IP-852 management messages, to send specially crafted IP-852 messages resulting in a memory leak from the program's memory.
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Low 2.4
Integer underflow in Secure NCP host
An integer underflow vulnerability in Silicon Labs Secure NCP host implementation allows a buffer overread via a specially crafted packet.
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Medium 5.1
Qemu-kvm: heap buffer out-of-bounds read in vmdk compressed grain parsing
A flaw was found in QEMU. A specially crafted VMDK image could trigger an out-of-bounds read vulnerability, potentially leading to a 12-byte leak of sensitive information or a denial of service condition (DoS).
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Medium 4.3
Open Babel MOL2 File atom.h SetFormalCharge out-of-bounds
A vulnerability was detected in Open Babel up to 3.1.1. The impacted element is the function OBAtom::SetFormalCharge in the library include/openbabel/atom.h of the component MOL2 File Handler. The manipulation results in out-of-bounds read. It is possible to …
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Medium 4.3
Open Babel CIF File transform3d.cpp DescribeAsString out-of-bounds
A security vulnerability has been detected in Open Babel up to 3.1.1. The affected element is the function OpenBabel::transform3d::DescribeAsString of the file src/math/transform3d.cpp of the component CIF File Handler. The manipulation leads to out-of-bounds…
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Low 3.3
FascinatedBox lily lily_emitter.c count_transforms out-of-bounds
A weakness has been identified in FascinatedBox lily up to 2.3. This vulnerability affects the function count_transforms of the file src/lily_emitter.c. This manipulation causes out-of-bounds read. The attack can only be executed locally. The exploit has been…
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Low 3.3
Squirrel sqfuncstate.cpp PopTarget out-of-bounds
A vulnerability was determined in Squirrel up to 3.2. Affected by this vulnerability is the function SQFuncState::PopTarget of the file src/squirrel/squirrel/sqfuncstate.cpp. Executing a manipulation of the argument _target_stack can lead to out-of-bounds rea…
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Low 3.3
niklasso minisat DIMACS File SolverTypes.h value out-of-bounds
A weakness has been identified in niklasso minisat up to 2.2.0. This issue affects the function Solver::value in the library core/SolverTypes.h of the component DIMACS File Parser. This manipulation of the argument variable index with the input 2147483648 cau…
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High 7.8
Out-Of-Bounds Read vulnerability affecting the EPRT file reading procedure in SOLIDWORKS eDrawings from Release SOLIDWORKS Desktop 2025 through Release SOLIDWORKS Desktop 2026
An Out-Of-Bounds Read vulnerability affecting the EPRT file reading procedure in SOLIDWORKS eDrawings from Release SOLIDWORKS Desktop 2025 through Release SOLIDWORKS Desktop 2026 could allow an attacker to execute arbitrary code while opening a specially craf…
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High 7.1
net/sched: cls_u32: use skb_header_pointer_careful()
In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_u32: use skb_header_pointer_careful() skb_header_pointer() does not fully validate negative @offset values. Use skb_header_pointer_careful() instead. GangMin Kim provided a rep…
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High 7.0
dpaa2-switch: add bounds check for if_id in IRQ handler
In the Linux kernel, the following vulnerability has been resolved: dpaa2-switch: add bounds check for if_id in IRQ handler The IRQ handler extracts if_id from the upper 16 bits of the hardware status register and uses it to index into ethsw->ports[] without …
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High 7.8
BACnet Stack WriteProperty decoding length underflow leads to OOB read and crash
BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.5.0rc4 and 1.4.3rc2, a malformed WriteProperty request can trigger a length underflow in the BACnet stack, leading to an out‑of‑bounds read and a crash (DoS). The i…
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Critical 9.8
nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec
In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec nvmet_tcp_build_pdu_iovec() could walk past cmd->req.sg when a PDU length or offset exceeds sg_cnt and then use bogus sg->length/offs…
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Medium 5.3
Libsoup: out-of-bounds read in libsoup handle_partial_get() leading to heap information disclosure
A flaw was identified in libsoup, a widely used HTTP library in GNOME-based systems. When processing specially crafted HTTP Range headers, the library may improperly validate requested byte ranges. In certain build configurations, this could allow a remote at…