CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

CVE-2026-2873 (GCVE-0-2026-2873)

Vulnerability from cvelistv5 – Published: 2026-02-21 16:32 – Updated: 2026-02-23 19:24
VLAI
Title
Tenda A21 openSchedWifi setSchedWifi stack-based overflow
Summary
A vulnerability was detected in Tenda A21 1.0.0.0. This issue affects the function setSchedWifi of the file /goform/openSchedWifi. Performing a manipulation of the argument schedStartTime/schedEndTime results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit is now public and may be used.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.347110 vdb-entrytechnical-description
https://vuldb.com/?ctiid.347110 signaturepermissions-required
https://vuldb.com/?submit.754635 third-party-advisory
https://github.com/QIU-DIE/cve-nneeww/issues/4 exploitissue-tracking
https://www.tenda.com.cn/ product
Impacted products
Vendor Product Version
Tenda A21 Affected: 1.0.0.0
Create a notification for this product.
Credits
hhsw34 (VulDB User)
Show details on NVD website

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CVE-2026-2874 (GCVE-0-2026-2874)

Vulnerability from cvelistv5 – Published: 2026-02-21 17:32 – Updated: 2026-02-23 15:41
VLAI
Title
Tenda A21 fast_setting_wifi_set form_fast_setting_wifi_set stack-based overflow
Summary
A flaw has been found in Tenda A21 1.0.0.0. Impacted is the function form_fast_setting_wifi_set of the file /goform/fast_setting_wifi_set. Executing a manipulation of the argument ssid can lead to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been published and may be used.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.347111 vdb-entrytechnical-description
https://vuldb.com/?ctiid.347111 signaturepermissions-required
https://vuldb.com/?submit.754636 third-party-advisory
https://github.com/QIU-DIE/cve-nneeww/issues/5 exploitissue-tracking
https://www.tenda.com.cn/ product
Impacted products
Vendor Product Version
Tenda A21 Affected: 1.0.0.0
Create a notification for this product.
Credits
hhsw34 (VulDB User)
Show details on NVD website

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CVE-2026-2876 (GCVE-0-2026-2876)

Vulnerability from cvelistv5 – Published: 2026-02-21 17:32 – Updated: 2026-02-23 15:41
VLAI
Title
Tenda A18 setBlackRule parse_macfilter_rule stack-based overflow
Summary
A vulnerability was determined in Tenda A18 15.13.07.13. This affects the function parse_macfilter_rule of the file /goform/setBlackRule. This manipulation of the argument deviceList causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.347114 vdb-entrytechnical-description
https://vuldb.com/?ctiid.347114 signaturepermissions-required
https://vuldb.com/?submit.754675 third-party-advisory
https://github.com/master-abc/cve/issues/38 exploitissue-tracking
https://www.tenda.com.cn/ product
Impacted products
Vendor Product Version
Tenda A18 Affected: 15.13.07.13
Create a notification for this product.
Credits
junqi (VulDB User)
Show details on NVD website

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CVE-2026-2877 (GCVE-0-2026-2877)

Vulnerability from cvelistv5 – Published: 2026-02-21 18:32 – Updated: 2026-02-23 15:40
VLAI
Title
Tenda A18 Httpd Service WifiExtraSet strcpy stack-based overflow
Summary
A vulnerability has been found in Tenda A18 15.13.07.13. This affects the function strcpy of the file /goform/WifiExtraSet of the component Httpd Service. The manipulation of the argument wpapsk_crypto5g leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.347130 vdb-entrytechnical-description
https://vuldb.com/?ctiid.347130 signaturepermissions-required
https://vuldb.com/?submit.754703 third-party-advisory
https://github.com/master-abc/cve/issues/39 exploitissue-tracking
https://www.tenda.com.cn/ product
Impacted products
Vendor Product Version
Tenda A18 Affected: 15.13.07.13
Create a notification for this product.
Credits
942384053 (VulDB User)
Show details on NVD website

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CVE-2026-2881 (GCVE-0-2026-2881)

Vulnerability from cvelistv5 – Published: 2026-02-21 19:32 – Updated: 2026-02-23 19:24
VLAI
Title
D-Link DWR-M960 Advanced Firewall Configuration Endpoint formFirewallAdv sub_425FF8 stack-based overflow
Summary
A vulnerability has been found in D-Link DWR-M960 1.01.07. This vulnerability affects the function sub_425FF8 of the file /boafrm/formFirewallAdv of the component Advanced Firewall Configuration Endpoint. Such manipulation of the argument submit-url leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.347175 vdb-entrytechnical-description
https://vuldb.com/?ctiid.347175 signaturepermissions-required
https://vuldb.com/?submit.754486 third-party-advisory
https://github.com/LX-66-LX/cve-new/issues/15 exploitissue-tracking
https://www.dlink.com/ product
Impacted products
Vendor Product Version
D-Link DWR-M960 Affected: 1.01.07
Create a notification for this product.
Credits
LX-66-LX (VulDB User)
Show details on NVD website

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CVE-2026-2882 (GCVE-0-2026-2882)

Vulnerability from cvelistv5 – Published: 2026-02-21 20:02 – Updated: 2026-02-23 19:39
VLAI
Title
D-Link DWR-M960 formDosCfg sub_46385C stack-based overflow
Summary
A vulnerability was found in D-Link DWR-M960 1.01.07. This issue affects the function sub_46385C of the file /boafrm/formDosCfg. Performing a manipulation of the argument submit-url results in stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been made public and could be used.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.347176 vdb-entrytechnical-description
https://vuldb.com/?ctiid.347176 signaturepermissions-required
https://vuldb.com/?submit.754487 third-party-advisory
https://github.com/LX-66-LX/cve-new/issues/16 exploitissue-tracking
https://www.dlink.com/ product
Impacted products
Vendor Product Version
D-Link DWR-M960 Affected: 1.01.07
Create a notification for this product.
Credits
LX-66-LX (VulDB User)
Show details on NVD website

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CVE-2026-2883 (GCVE-0-2026-2883)

Vulnerability from cvelistv5 – Published: 2026-02-21 20:02 – Updated: 2026-02-23 19:40
VLAI
Title
D-Link DWR-M960 formIpQoS sub_427D74 stack-based overflow
Summary
A vulnerability was determined in D-Link DWR-M960 1.01.07. Impacted is the function sub_427D74 of the file /boafrm/formIpQoS. Executing a manipulation of the argument submit-url can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.347177 vdb-entrytechnical-description
https://vuldb.com/?ctiid.347177 signaturepermissions-required
https://vuldb.com/?submit.754490 third-party-advisory
https://github.com/LX-66-LX/cve-new/issues/17 exploitissue-tracking
https://www.dlink.com/ product
Impacted products
Vendor Product Version
D-Link DWR-M960 Affected: 1.01.07
Create a notification for this product.
Credits
LX-66-LX (VulDB User)
Show details on NVD website

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CVE-2026-2884 (GCVE-0-2026-2884)

Vulnerability from cvelistv5 – Published: 2026-02-21 20:32 – Updated: 2026-02-23 19:32
VLAI
Title
D-Link DWR-M960 WAN Interface Setting formWanConfigSetup sub_41914C stack-based overflow
Summary
A vulnerability was identified in D-Link DWR-M960 1.01.07. The affected element is the function sub_41914C of the file /boafrm/formWanConfigSetup of the component WAN Interface Setting Handler. The manipulation of the argument submit-url leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is publicly available and might be used.
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.347178 vdb-entrytechnical-description
https://vuldb.com/?ctiid.347178 signaturepermissions-required
https://vuldb.com/?submit.754493 third-party-advisory
https://github.com/LX-66-LX/cve-new/issues/18 exploitissue-tracking
https://www.dlink.com/ product
Impacted products
Vendor Product Version
D-Link DWR-M960 Affected: 1.01.07
Create a notification for this product.
Credits
LX-66-LX (VulDB User)
Show details on NVD website

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CVE-2026-2885 (GCVE-0-2026-2885)

Vulnerability from cvelistv5 – Published: 2026-02-21 20:32 – Updated: 2026-02-23 19:32
VLAI
Title
D-Link DWR-M960 formIpv6Setup sub_469104 stack-based overflow
Summary
A security flaw has been discovered in D-Link DWR-M960 1.01.07. The impacted element is the function sub_469104 of the file /boafrm/formIpv6Setup. The manipulation of the argument submit-url results in stack-based buffer overflow. The attack may be performed from remote. The exploit has been released to the public and may be used for attacks.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.347179 vdb-entrytechnical-description
https://vuldb.com/?ctiid.347179 signaturepermissions-required
https://vuldb.com/?submit.754496 third-party-advisory
https://github.com/LX-66-LX/cve-new/issues/19 exploitissue-tracking
https://www.dlink.com/ product
Impacted products
Vendor Product Version
D-Link DWR-M960 Affected: 1.01.07
Create a notification for this product.
Credits
LX-66-LX (VulDB User)
Show details on NVD website

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CVE-2026-2886 (GCVE-0-2026-2886)

Vulnerability from cvelistv5 – Published: 2026-02-21 21:02 – Updated: 2026-02-23 19:31
VLAI
Title
Tenda A21 SetOnlineDevName set_device_name stack-based overflow
Summary
A weakness has been identified in Tenda A21 1.0.0.0. This affects the function set_device_name of the file /goform/SetOnlineDevName. This manipulation of the argument devName causes stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.347180 vdb-entrytechnical-description
https://vuldb.com/?ctiid.347180 signaturepermissions-required
https://vuldb.com/?submit.754640 third-party-advisory
https://github.com/QIU-DIE/cve-nneeww/issues/6 exploitissue-tracking
https://www.tenda.com.cn/ product
Impacted products
Vendor Product Version
Tenda A21 Affected: 1.0.0.0
Create a notification for this product.
Credits
hhsw34 (VulDB User)
Show details on NVD website

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    "dateUpdated": "2026-02-23T19:31:15.738Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Mitigation ID: MIT-3

Phase: Requirements

Strategy: Language Selection

Description:

  • 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.
Mitigation ID: MIT-4.1

Phase: Architecture and Design

Strategy: Libraries or Frameworks

Description:

  • 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 [REF-57], and the Strsafe.h library from Microsoft [REF-56]. These libraries provide safer versions of overflow-prone string-handling functions.
Mitigation ID: MIT-10

Phases: Operation, Build and Compilation

Strategy: Environment Hardening

Description:

  • 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 [REF-1334] discusses canary-based detection in detail.
Mitigation ID: MIT-9

Phase: Implementation

Description:

  • Consider adhering to the following rules when allocating and managing an application's memory:
  • Double check that the buffer is as large as specified.
  • When using functions that accept a number of bytes to copy, such as strncpy(), be aware that if the destination buffer size is equal to the source buffer size, it may not NULL-terminate the string.
  • Check buffer boundaries if accessing the buffer in a loop and make sure there is no danger of writing past the allocated space.
  • If necessary, truncate all input strings to a reasonable length before passing them to the copy and concatenation functions.
Mitigation ID: MIT-11

Phases: Operation, Build and Compilation

Strategy: Environment Hardening

Description:

  • Run or compile the software using features or extensions that randomly arrange the positions of a program's executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
  • Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as "rebasing" (for Windows) and "prelinking" (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
  • For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].
Mitigation ID: MIT-12

Phase: Operation

Strategy: Environment Hardening

Description:

  • 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 [REF-60] [REF-61]. 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 [REF-1336].
Mitigation ID: MIT-13

Phase: Implementation

Description:

  • Replace unbounded copy functions with analogous functions that support length arguments, such as strcpy with strncpy. Create these if they are not available.
CAPEC-10: Buffer Overflow via Environment Variables

This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the adversary finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.

CAPEC-100: Overflow Buffers

Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an adversary. As a consequence, an adversary is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the adversaries' choice.

CAPEC-123: Buffer Manipulation

An adversary manipulates an application's interaction with a buffer in an attempt to read or modify data they shouldn't have access to. Buffer attacks are distinguished in that it is the buffer space itself that is the target of the attack rather than any code responsible for interpreting the content of the buffer. In virtually all buffer attacks the content that is placed in the buffer is immaterial. Instead, most buffer attacks involve retrieving or providing more input than can be stored in the allocated buffer, resulting in the reading or overwriting of other unintended program memory.

CAPEC-14: Client-side Injection-induced Buffer Overflow

This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service. This hostile service is created to deliver the correct content to the client software. For example, if the client-side application is a browser, the service will host a webpage that the browser loads.

CAPEC-24: Filter Failure through Buffer Overflow

In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).

CAPEC-42: MIME Conversion

An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

CAPEC-44: Overflow Binary Resource File

An attack of this type exploits a buffer overflow vulnerability in the handling of binary resources. Binary resources may include music files like MP3, image files like JPEG files, and any other binary file. These attacks may pass unnoticed to the client machine through normal usage of files, such as a browser loading a seemingly innocent JPEG file. This can allow the adversary access to the execution stack and execute arbitrary code in the target process.

CAPEC-45: Buffer Overflow via Symbolic Links

This type of attack leverages the use of symbolic links to cause buffer overflows. An adversary can try to create or manipulate a symbolic link file such that its contents result in out of bounds data. When the target software processes the symbolic link file, it could potentially overflow internal buffers with insufficient bounds checking.

CAPEC-46: Overflow Variables and Tags

This type of attack leverages the use of tags or variables from a formatted configuration data to cause buffer overflow. The adversary crafts a malicious HTML page or configuration file that includes oversized strings, thus causing an overflow.

CAPEC-47: Buffer Overflow via Parameter Expansion

In this attack, the target software is given input that the adversary knows will be modified and expanded in size during processing. This attack relies on the target software failing to anticipate that the expanded data may exceed some internal limit, thereby creating a buffer overflow.

CAPEC-8: Buffer Overflow in an API Call

This attack targets libraries or shared code modules which are vulnerable to buffer overflow attacks. An adversary who has knowledge of known vulnerable libraries or shared code can easily target software that makes use of these libraries. All clients that make use of the code library thus become vulnerable by association. This has a very broad effect on security across a system, usually affecting more than one software process.

CAPEC-9: Buffer Overflow in Local Command-Line Utilities

This attack targets command-line utilities available in a number of shells. An adversary can leverage a vulnerability found in a command-line utility to escalate privilege to root.

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