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
2,118 results · Clear filters · Feed
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High 7.8
Out-of-Bounds Read in mgcore_SH_25_3!aligned_free()
There is a memory corruption vulnerability due to an out-of-bounds read in mgcore_SH_25_3!aligned_free() in NI LabVIEW. This vulnerability may result in information disclosure or arbitrary code execution. Successful exploitation requires an attacker to get a…
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High 7.8
Out-of-Bounds Read in sentry_transaction_context_set_operation()
There is a memory corruption vulnerability due to an out-of-bounds read in sentry_transaction_context_set_operation() in NI LabVIEW. This vulnerability may result in information disclosure or arbitrary code execution. Successful exploitation requires an atta…
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High 8.1
Memory safety bugs fixed in Firefox 149.0.2 and Thunderbird 149.0.2
Memory safety bugs present in Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed i…
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High 7.1
SDL_image has a heap buffer overflow READ via unchecked colormap index in XCF loader
SDL_image is a library to load images of various formats as SDL surfaces. In do_layer_surface() in src/IMG_xcf.c, pixel index values from decoded XCF tile data are used directly as colormap indices without validating them against the colormap size (cm_num). A…
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High 7.5
ZLMediaKit VP9 RTP Parser Out-of-Bounds Read
ZLMediaKit is a streaming media service framework. the VP9 RTP payload parser in ext-codec/VP9Rtp.cpp reads multiple fields from the RTP payload based on flag bits in the first byte, without verifying that sufficient data exists in the buffer. A crafted VP9 R…
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High 7.1
openFPGALoader has a heap buffer overflow in POFParser::parseSection() via crafted .pof file
openFPGALoader is a utility for programming FPGAs. In 1.1.1 and earlier, a heap-buffer-overflow read vulnerability exists in POFParser::parseSection() that allows out-of-bounds heap memory access when parsing a crafted .pof file. No FPGA hardware is required …
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High 7.1
openFPGALoader has a heap buffer overflow in BitParser::parseHeader() via crafted .bit file
openFPGALoader is a utility for programming FPGAs. In 1.1.1 and earlier, a heap-buffer-overflow read vulnerability exists in BitParser::parseHeader() that allows out-of-bounds heap memory access when parsing a crafted .bit file. No FPGA hardware is required t…
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High 8.6
OpenEXR has a signed 32-bit Overflow in PIZ Decoder Leads to OOB Read/Write
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.1.0 to before 3.2.7, 3.3.9, and 3.4.9, internal_exr_undo_piz() advances the working wavelet pointer with si…
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High 7.1
netfilter: conntrack: add missing netlink policy validations
In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: add missing netlink policy validations Hyunwoo Kim reports out-of-bounds access in sctp and ctnetlink. These attributes are used by the kernel without any validation. Ex…
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High —
scaly: Multiple soundness issues in Rust safe APIs
Affected versions contain multiple safe APIs that can trigger undefined behavior: - `Array<T>::index` can perform an out-of-bounds read. - `String::get_length` can perform an out-of-bounds read. - `String::append_character` can perform an invalid write. - `St…
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High 7.5
Mesop: Unbounded Thread Creation in WebSocket Handler Leads to Denial of Service
Mesop is a Python-based UI framework that allows users to build web applications. From version 1.2.3 to before version 1.2.5, an uncontrolled resource consumption vulnerability exists in the WebSocket implementation of the Mesop framework. An unauthenticated …
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High 8.1
Bluetooth: L2CAP: Validate L2CAP_INFO_RSP payload length before access
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Validate L2CAP_INFO_RSP payload length before access l2cap_information_rsp() checks that cmd_len covers the fixed l2cap_info_rsp header (type + result, 4 bytes) but then rea…
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High 8.2
netfilter: nf_conntrack_h323: fix OOB read in decode_int() CONS case
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_h323: fix OOB read in decode_int() CONS case In decode_int(), the CONS case calls get_bits(bs, 2) to read a length value, then calls get_uint(bs, len) without checking…
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High 7.5
Swift Crypto: X-Wing HPKE Decapsulation Accepts Malformed Ciphertext Length
A remote attacker can supply a short X-Wing HPKE encapsulated key and trigger an out-of-bounds read in the C decapsulation path, potentially causing a crash or memory disclosure depending on runtime protections. This issue is fixed in swift-crypto version 4.3…
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High 7.5
An issue was discovered in Mbed TLS 3.x before 3.6.6. An out-of-bounds read vulnerability in mbedtls_ccm_finish() in li…
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High 7.8
V-SFT versions 6.2.10.0 and prior contain an out-of-bounds read in VS6ComFile!get_macro_mem_COM. Opening a crafted V7 f…
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High 7.8
V-SFT versions 6.2.10.0 and prior contain an out-of-bounds read vulnerability in VS6MemInIF!set_temp_type_default. Open…
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High 7.8
V-SFT versions 6.2.10.0 and prior contain an out-of-bounds read vulnerability in VS6ComFile!load_link_inf. Opening a cr…
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High 8.8
Out of bounds read in WebCodecs in Google Chrome prior to 146.0.7680.178 allowed a remote attacker to perform an out of…
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High 8.1
Out of bounds read in WebCodecs in Google Chrome prior to 146.0.7680.178 allowed a remote attacker to perform an out of…
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High 7.1
FreeRDP: Persistent Cache Allocator Mismatch - Heap OOB Read
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, there is a heap-buffer-overflow READ vulnerability at 24 bytes before the allocation, in winpr_aligned_offset_recalloc(). This issue has been patched in version 3.24.2.
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High 8.2
Botan: Heap Buffer Over-read in SM2 Decryption via Undersized C3 Hash Field
Botan is a C++ cryptography library. From version 2.3.0 to before version 3.11.0, during SM2 decryption, the code that checked the authentication code value (C3) failed to check that the encoded value was of the expected length prior to comparison. An invalid…
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High 7.5
OpenFeature evaluation API reads input data with no bounds
The OpenFeature feature toggle evaluation endpoint reads unbounded values into memory, which can cause out-of-memory crashes.
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High 7.1
Denial-of-Service Vulnerability in UPnP Component of TP Link's TL-WR841N
The vulnerability exists in the UPnP component of TL-WR841N v14, where improper input validation leads to an out-of-bounds read, potentially causing a crash of the UPnP service. Successful exploitation can cause the UPnP service to crash, resulting in a Denia…
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High 7.5
Denial of service in github.com/shamaton/msgpack
The msgpack decoder fails to properly validate the input buffer length when processing truncated fixext data (format codes 0xd4-0xd8). This can lead to an out-of-bounds read and a runtime panic, allowing a denial of service attack.
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High 7.5
Denial of service in github.com/buger/jsonparser
The Delete function fails to properly validate offsets when processing malformed JSON input. This can lead to a negative slice index and a runtime panic, allowing a denial of service attack.
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High —
libcrux Panics During Standalone MAC Operations
An incorrect constant for the key length in libcrux-poly1305 caused the standalone MAC function `libcrux_poly1305::mac` to always panic with an out-of-bounds memory access. ## Impact Applications wishing to use libcrux-poly1305 as a standalone MAC would exper…
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High —
libcrux: Panic in Signature Hint Decoding During Verification
During ML-DSA verification the serialized hint values are decoded as specified in algorithm 22 `HintBitUnpack` of [FIPS 204, subsection 7.1](https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.204.pdf#%5B%7B%22num%22%3A120%2C%22gen%22%3A0%7D%2C%7B%22name%22%3A%2…
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High 7.6
LIBPNG has ARM NEON Palette Expansion Out-of-Bounds Read on AArch64
LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. In versions 1.6.36 through 1.6.55, an out-of-bounds read and write exists in libpng's ARM/AArch64 Neon-optimized palett…
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High 7.5
EVerest has OOB via EVSE ID Indexing Mismatch in OCPP 2.0.1 UpdateAllowedEnergyTransferModes
EVerest is an EV charging software stack. Versions prior to 2026.02.0 have an out-of-bounds access (std::vector) that leads to possible remote crash/memory corruption. This is because the CSMS sends UpdateAllowedEnergyTransferModes over the network. Version 2…
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High 8.0
Saloon has a Fixture Name Path Traversal Vulnerability
Saloon is a PHP library that gives users tools to build API integrations and SDKs. Prior to version 4.0.0, fixture names were used to build file paths under the configured fixture directory without validation. A name containing path segments (e.g. ../traversa…
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High 8.4
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.5, macOS S…
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High 7.5
fido2-lib is vulnerable to DoS via cbor-extract heap buffer over-read in CBOR attestation parsing
### Summary fido2-lib v3.x depends on cbor-x (~1.6.0), which optionally pulls in cbor-extract (C++ native addon). cbor-extract <= 2.2.0 has a heap buffer over-read in `extractStrings()` — a 5-byte CBOR payload crashes Node.js with SIGSEGV. No JS exception, no…
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High 7.8
NGINX ngx_http_mp4_module vulnerability
NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_mp4_module module, which might allow an attacker to trigger a buffer over-read or over-write to the NGINX worker memory resulting in its termination or possibly code execution, using a spec…
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High 8.4
Out-of-bounds Read Overflow in tildearrow/furnace
Out-of-bounds Read vulnerability in tildearrow furnace (extern/libsndfile-modified/src modules). This vulnerability is associated with program files flac.C. This issue affects furnace: before 0.7.
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High 8.8
Inappropriate implementation in WebAudio in Google Chrome prior to 146.0.7680.165 allowed a remote attacker to perform …
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High 8.8
Out of bounds read in CSS in Google Chrome prior to 146.0.7680.165 allowed a remote attacker to perform out of bounds m…
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High 7.5
gethostbyaddr and gethostbyaddr_r may incorrectly handle DNS response
Calling gethostbyaddr or gethostbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend in the GNU C Library version 2.34 to version 2.43 could, with a crafted response from the configured DNS server, result in a violation of the DNS…
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High 8.8
Out of bounds read in Blink in Google Chrome prior to 146.0.7680.153 allowed a remote attacker to perform an out of bou…
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High 8.8
Out of bounds read in Skia in Google Chrome prior to 146.0.7680.153 allowed a remote attacker to perform an out of boun…