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
18 results · Clear filters · Feed
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Medium 4.6CVE-2026-116487 Public exploit
NXP MCUXpresso SDK USB Middleware before 2.13.0 RNDIS Out-of-Bounds Read
NXP MCUXpresso SDK USB middleware (mcuxsdk-middleware-usb) before 2.13.0 contains an out-of-bounds read vulnerability in USB_DeviceCdcRndisSetCommand() that trusts a host-supplied informationBufferOffset. A malicious USB host can send RNDIS SET messages for O…
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Medium 6.5CVE-2026-85769 Public exploit
Libtpms: libtpms: heap out-of-bounds read in tpm2 state unmarshalling via unchecked block_skip_read() blocksize
A flaw was found in libtpms, a library that provides software TPM 2.0 emulation. When restoring TPM 2.0 state (for example during a virtual machine's power-on or state/migration restore), a malformed state blob can supply an oversized skip-block length that i…
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Medium 6.6CVE-2026-65349 Public exploit
An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 26.6.1 and iPadOS 26.6.1…
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Medium 6.5CVE-2026-47729 Public exploit
Squid: Memory disclosure in FTP gateway
Squid is a caching proxy for the Web. Prior to 7.6, due to an improper validation of syntactic correctness of input in the FTP gateway (src/clients/FtpGateway.cc), Squid is vulnerable to an out-of-bounds read: when a listing entry date in the TypeA or TypeB d…
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Medium 4.8CVE-2026-12478 Public exploit
Libsoup: incomplete fix for cve-2026-0716: out-of-bounds read in libsoup websocket frame processing (unmasked path)
The fix for CVE-2026-0716 (commit 6ff7ef0, libsoup 3.6.6) placed the integer overflow guard inside the if (masked) block, leaving unmasked server-to-client frames unprotected. A malicious WebSocket server can send a crafted unmasked frame with a payload lengt…
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Medium 5.1CVE-2026-14461 Public exploit
Out-of-bound read in mtr
mtr is vulnerable to Out-of-bound read vulnerability in ipinfo_lookup() function. An attacker who can influence the TXT response used for AS lookups can trigger this bug by returning a DNS response that is larger than 512 bytes and uses a crafted compression …
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Medium 6.9CVE-2026-10817 Public exploit
Insufficient input validation leading to memory overread
Insufficient input validation leading to memory overread in NetScaler ADC and NetScaler Gateway if the TCP TimeStamp is enabled in TCP Profile and is associated with the virtual server (of type LB, CS, VPN) or the service configured on NetScaler
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Medium 5.0CVE-2026-48770 Public exploit
Notepad++ WM_COPYDATA COPYDATA_FULL_CMDLINE local DoS crash
Notepad++ is a free and open-source source code editor. Prior to 8.9.6.1, a local process in the same interactive Windows session can send a malformed WM_COPYDATA message to Notepad++ using the COPYDATA_FULL_CMDLINE path. The handler appears to process COPYDA…
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Medium 6.5CVE-2026-9539 Public exploit
libslirp TCP URG OOB Read Information Leak
An out-of-bounds heap read and integer underflow in the TCP urgent data handling (sosendoob) in freedesktop.org libslirp version before v4.9.2 on hypervisor host environments (e.g., QEMU) allows a privileged guest VM attacker (root or CAP_NET_RAW) to leak gig…
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Medium 6.5CVE-2026-28956 Public exploit
A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 26.5 and iPadOS 26.5…
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Medium 6.3CVE-2025-14177 Public exploit
Information Leak of Memory in getimagesize
In PHP versions:8.1.* before 8.1.34, 8.2.* before 8.2.30, 8.3.* before 8.3.29, 8.4.* before 8.4.16, 8.5.* before 8.5.1, the getimagesize() function may leak uninitialized heap memory into the APPn segments (e.g., APP1) when reading images in multi-chunk mode …
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Medium 5.6CVE-2024-11616 Public exploit
Double-fetch heap overflow
Netskope was made aware of a security vulnerability in Netskope Endpoint DLP’s Content Control Driver where a double-fetch issue leads to heap overflow. The vulnerability arises from the fact that the NumberOfBytes argument to ExAllocatePoolWithTag, and the L…
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Medium 5.5CVE-2024-0030 Public exploit
In btif_to_bta_response of btif_gatt_util.cc, there is a possible out of bounds read due to an incorrect bounds check. …
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Medium 6.2CVE-2023-21118 Public exploit
In unflattenString8 of Sensor.cpp, there is a possible out of bounds read due to a heap buffer overflow. This could lea…
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Medium 6.5
Acrobat Reader DC Out-Of-Bounds Read Information Disclosure Vulnerability
Acrobat Reader DC versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by an Out-of-bounds Read vulnerability that could lead to arbitrary disclosure of information in the memory stack. An attacker …
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Medium 4.3CVE-2020-11019 Public exploit
Out of bound read in update_recv in FreeRDP
In FreeRDP less than or equal to 2.0.0, when running with logger set to "WLOG_TRACE", a possible crash of application could occur due to a read of an invalid array index. Data could be printed as string to local terminal. This has been fixed in 2.1.0.
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Medium 5.5CVE-2019-1148 Public exploit
Microsoft Graphics Component Information Disclosure Vulnerability
An information disclosure vulnerability exists when the Microsoft Windows Graphics Component improperly handles objects in memory. An attacker who successfully exploited the vulnerability could obtain information to further compromise the user’s system. To ex…
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Medium 5.4CVE-2018-16890 Public exploit
libcurl versions from 7.36.0 to before 7.64.0 is vulnerable to a heap buffer out-of-bounds read. The function handling …