Out-of-bounds Write
CWE-787
The product writes data past the end, or before the beginning, of the intended buffer.
We track 5,886 vulnerabilities of this type. 100% are rated high or critical, and the average CVSS score is 8.3. 167 have been exploited in real attacks.
How this weakness is prevented
- Requirements: Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, many languages that perform their own memory management, such as Java and Perl, are not subject to buffer overflows. Other languages, such as Ada and C#, typically provide overflow protection, but the protection can be disabled by the programmer. Be wary that a language's interface to native code may still be subject to overflows, even if the language itself is theoretically safe.
- Architecture and Design: Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. Examples include the Safe C String Library (SafeStr) by Messier and Viega, and the Strsafe.h library from Microsoft. These libraries provide safer versions of overflow-prone string-handling functions.
- Operation Build and Compilation: Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking. D3-SFCV (Stack Frame Canary Validation) from D3FEND discusses canary-based detection in detail.
- Operation: Use a CPU and operating system that offers Data Execution Protection (using hardware NX or XD bits) or the equivalent techniques that simulate this feature in software, such as PaX. These techniques ensure that any instruction executed is exclusively at a memory address that is part of the code segment. For more information on these techniques see D3-PSEP (Process Segment Execution Prevention) from D3FEND.
- Implementation: Replace unbounded copy functions with analogous functions that support length arguments, such as strcpy with strncpy. Create these if they are not available.
Latest Out-of-bounds Write vulnerabilities
- 8.8 High severity
FreeBSD: Out-of-bounds Write
The implementation of lib9p's handling of RWALK messages was missing a bounds check needed when unpacking the message contents. The missing check means that the receipt of a specially crafted message will cause lib9p to overwrite unrelated memory. The bug can
- 8.8 High severity
FreeBSD: Out-of-bounds Write
The e1000 network adapters permit a variety of modifications to an Ethernet packet when it is being transmitted. These include the insertion of IP and TCP checksums, insertion of an Ethernet VLAN header, and TCP segmentation offload ("TSO"). The e1000 device m
- 7.8 High severity
FreeBSD: Out-of-bounds Write
Handlers for *_CFG_PAGE read / write ioctls in the mpr, mps, and mpt drivers allocated a buffer of a caller-specified size, but copied to it a fixed size header. Other heap content would be overwritten if the specified size was too small. Users with access to
- 8.2 High severity
FreeBSD: Out-of-bounds Write
A user-provided integer option was passed to nmreq_copyin() without checking if it would overflow. This insufficient bounds checking could lead to kernel memory corruption. On systems configured to include netmap in their devfs_ruleset, a privileged process ru
- 7.6 High severity
contiki-ng: Out-of-bounds Write
Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An out-of-bounds write exists in the driver for IEEE 802.15.4 radios on nRF platforms in the Contiki-NG operating system. The problem is triggered when parsing radio
- 7.5 High severity
BIG-IP: Out-of-bounds Write
When a BIG-IP PEM classification profile is configured on a UDP virtual server, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. This issue affects classification engines using signatures released between 09-08-2022 and 02-
- 7.5 High severity
Intel(R) PCM software: Out-of-bounds Write
Buffer underflow in some Intel(R) PCM software before version 202307 may allow an unauthenticated user to potentially enable denial of service via network access.
- 7.8 High severity
Simcenter Femap: Out-of-bounds Write
A vulnerability has been identified in Simcenter Femap (All versions < V2306.0000). The affected application contains an out of bounds write past the end of an allocated buffer while parsing a specially crafted Catia MODEL file. This could allow an attacker to
- 7.8 High severity
Simcenter Femap: Out-of-bounds Write
A vulnerability has been identified in Simcenter Femap (All versions < V2401.0000). The affected application contains an out of bounds write past the end of an allocated buffer while parsing a specially crafted Catia MODEL file. This could allow an attacker to
- 7.8 High severity
Simcenter Femap: Out-of-bounds Write
A vulnerability has been identified in Simcenter Femap (All versions < V2401.0000). The affected application is vulnerable to memory corruption while parsing specially crafted Catia MODEL files. This could allow an attacker to execute code in the context of th
- 7.8 High severity
Simcenter Femap: Out-of-bounds Write
A vulnerability has been identified in Simcenter Femap (All versions < V2401.0000). The affected application contains an out of bounds write past the end of an allocated buffer while parsing a specially crafted Catia MODEL file. This could allow an attacker to
- 7.8 High severity
Tecnomatix Plant Simulation V2201: Out-of-bounds Write
A vulnerability has been identified in Tecnomatix Plant Simulation V2201 (All versions < V2201.0012), Tecnomatix Plant Simulation V2302 (All versions < V2302.0006). The affected applications contain a stack overflow vulnerability while parsing specially crafte
- 7.8 High severity
Tecnomatix Plant Simulation V2201: Out-of-bounds Write
A vulnerability has been identified in Tecnomatix Plant Simulation V2201 (All versions), Tecnomatix Plant Simulation V2302 (All versions < V2302.0007). The affected application contains an out of bounds write past the end of an allocated buffer while parsing a
- 7.8 High severity
Tecnomatix Plant Simulation V2201: Out-of-bounds Write
A vulnerability has been identified in Tecnomatix Plant Simulation V2201 (All versions < V2201.0012), Tecnomatix Plant Simulation V2302 (All versions < V2302.0006). The affected applications contain a stack overflow vulnerability while parsing specially crafte
- 7.8 High severity
Tecnomatix Plant Simulation V2201: Out-of-bounds Write
A vulnerability has been identified in Tecnomatix Plant Simulation V2201 (All versions < V2201.0012), Tecnomatix Plant Simulation V2302 (All versions < V2302.0006). The affected applications contain a stack overflow vulnerability while parsing specially crafte
- 7.8 High severity
Tecnomatix Plant Simulation V2201: Out-of-bounds Write
A vulnerability has been identified in Tecnomatix Plant Simulation V2201 (All versions < V2201.0012), Tecnomatix Plant Simulation V2302 (All versions < V2302.0006). The affected application is vulnerable to heap-based buffer overflow while parsing specially cr
- 7.8 High severity
Tecnomatix Plant Simulation V2201: Out-of-bounds Write
A vulnerability has been identified in Tecnomatix Plant Simulation V2201 (All versions < V2201.0012), Tecnomatix Plant Simulation V2302 (All versions < V2302.0006). The affected application contains an out of bounds write past the end of an allocated buffer wh
- 8.8 High severity
Imlib2: Out-of-bounds Write
An issue in the imlib_load_image_with_error_return function of imlib2 v1.9.1 allows attackers to cause a heap buffer overflow via parsing a crafted image.
- 7.8 High severity
Hugin: Out-of-bounds Write
An issue in the HuginBase::PTools::setDestImage function of Hugin v2022.0.0 allows attackers to cause a heap buffer overflow via parsing a crafted image.
- 7.8 High severity
Hugin: Out-of-bounds Write
An issue in the HuginBase::PanoramaMemento::loadPTScript function of Hugin v2022.0.0 allows attackers to cause a heap buffer overflow via parsing a crafted image.
- 9.8 Critical severity
Fortinet FortiOS Out-of-Bound Write Exploited
A out-of-bounds write vulnerability in Fortinet FortiOS 7.4.0 through 7.4.2, FortiOS 7.2.0 through 7.2.6, FortiOS 7.0.0 through 7.0.13, FortiOS 6.4.0 through 6.4.14, FortiOS 6.2.0 through 6.2.15, FortiOS 6.0 all versions, FortiProxy 7.4.0 through 7.4.2, FortiP
- 7.8 High severity
Kitty: Out-of-bounds Write
KiTTY versions 0.76.1.13 and before is vulnerable to a stack-based buffer overflow via the username, occurs due to insufficient bounds checking and input sanitization (at line 2600). This allows an attacker to overwrite adjacent memory, which leads to arbitrar
- 7.8 High severity
Kitty: Out-of-bounds Write
KiTTY versions 0.76.1.13 and before is vulnerable to a stack-based buffer overflow via the hostname, occurs due to insufficient bounds checking and input sanitization. This allows an attacker to overwrite adjacent memory, which leads to arbitrary code executio
- 7.8 High severity
Red Hat Enterprise Linux 6 Extended Lifecycle…: Out-of-bounds Write
An out-of-bounds memory access flaw was found in the X.Org server. This issue can be triggered when a device frozen by a sync grab is reattached to a different master device. This issue may lead to an application crash, local privilege escalation (if the serve
- 7.8 High severity
Android: Out-of-bounds Write
there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
- 9.8 Critical severity
Chrome: Out-of-bounds Write
Heap buffer overflow in Skia in Google Chrome prior to 121.0.6167.160 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
- 7.8 High severity
Snapdragon: Out-of-bounds Write
Memory corruption while processing the event ring, the context read pointer is untrusted to HLOS and when it is passed with arbitrary values, may point to address in the middle of ring element.
- 7.8 High severity
Samsung Mobile Devices: Out-of-bounds Write
Out-of-bounds Write vulnerabilities in svc1td_vld_plh_ap of libsthmbc.so prior to SMR Feb-2024 Release 1 allows local attackers to trigger buffer overflow.
- 7.8 High severity
Samsung Mobile Devices: Out-of-bounds Write
Out-of-bounds Write vulnerabilities in svc1td_vld_elh of libsthmbc.so prior to SMR Feb-2024 Release 1 allows local attackers to trigger buffer overflow.
- 7.8 High severity
Samsung Mobile Devices: Out-of-bounds Write
Out-of-bounds Write vulnerabilities in svc1td_vld_slh of libsthmbc.so prior to SMR Feb-2024 Release 1 allows local attackers to trigger buffer overflow.
- 9.8 Critical severity
Go-rt-ac750 Firmware: Out-of-bounds Write
D-Link Go-RT-AC750 GORTAC750_A1_FW_v101b03 contains a stack-based buffer overflow via the function genacgi_main. This vulnerability allows attackers to enable telnet service via a specially crafted payload.
- 9.8 Critical severity
Satera MF750C Series: Out-of-bounds Write
Buffer overflow in CPCA PCFAX number process of Office Multifunction Printers and Laser Printers(*) which may allow an attacker on the network segment to trigger the affected product being unresponsive or to execute arbitrary code.*:Satera MF750C Series firmwa
- 9.8 Critical severity
Satera LBP670C Series: Out-of-bounds Write
Buffer overflow in CPCA Color LUT Resource Download process of Office Multifunction Printers and Laser Printers(*) which may allow an attacker on the network segment to trigger the affected product being unresponsive or to execute arbitrary code.*: Satera LBP6
- 9.8 Critical severity
Satera LBP670C Series: Out-of-bounds Write
Buffer overflow in SLP attribute request process of Office Multifunction Printers and Laser Printers(*) which may allow an attacker on the network segment to trigger the affected product being unresponsive or to execute arbitrary code.*: Satera LBP670C Series/
- 9.8 Critical severity
Satera LBP670C Series: Out-of-bounds Write
Buffer overflow in the Address Book username process in authentication of Mobile Device Function of Office Multifunction Printers and Laser Printers(*) which may allow an attacker on the network segment to trigger the affected product being unresponsive or to
- 9.8 Critical severity
Satera LBP670C Series: Out-of-bounds Write
Buffer overflow in WSD probe request process of Office Multifunction Printers and Laser Printers(*) which may allow an attacker on the network segment to trigger the affected product being unresponsive or to execute arbitrary code.*: Satera LBP670C Series/Sate
- 9.8 Critical severity
Satera LBP670C Series: Out-of-bounds Write
Buffer overflow in the Address Book password process in authentication of Mobile Device Function of Office Multifunction Printers and Laser Printers(*) which may allow an attacker on the network segment to trigger the affected product being unresponsive or to
- 9.8 Critical severity
Satera LBP670C Series: Out-of-bounds Write
Buffer overflow in CPCA PDL Resource Download process of Office Multifunction Printers and Laser Printers(*) which may allow an attacker on the network segment to trigger the affected product being unresponsive or to execute arbitrary code.*: Satera LBP670C Se
- 9.8 Critical severity
Ac9 Firmware: Out-of-bounds Write
Buffer Overflow vulnerability in the function setSchedWifi in Tenda AC9 v.3.0, firmware version v.15.03.06.42_multi allows a remote attacker to cause a denial of service or run arbitrary code via crafted overflow data.
- 7.8 High severity
Bifrost GPU Kernel Driver: Out-of-bounds Write
Out-of-bounds Write vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user to make improper GPU memory processing operations. Depending on the