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CWE-1284 — Vulnerability Class 250

250 vulnerabilities classified as CWE-1284. AI Chinese analysis included.

CWE-1284 represents a critical input validation weakness where software fails to properly verify numerical constraints such as size, length, or frequency provided by users. Attackers typically exploit this flaw by submitting maliciously crafted inputs that exceed expected limits, triggering resource exhaustion, buffer overflows, or logic errors during allocation and iteration processes. By bypassing these checks, adversaries can cause denial of service, data corruption, or arbitrary code execution. To mitigate this risk, developers must implement rigorous validation routines that enforce strict upper and lower bounds on all quantitative inputs. This includes verifying that values fall within acceptable ranges before processing, using safe parsing functions, and applying defensive programming techniques to handle unexpected or extreme values gracefully, thereby ensuring system stability and preventing exploitation of unchecked numerical parameters.

MITRE CWE Description
The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties. Specified quantities include size, length, frequency, price, rate, number of operations, time, and others. Code may rely on specified quantities to allocate resources, perform calculations, control iteration, etc.
Common Consequences (1)
Other, Integrity, Availability Varies by Context, DoS: Resource Consumption (CPU), Modify Memory, Read Memory
When the quantity is not properly validated, then attackers can specify malicious quantities to cause excessive resource allocation, trigger unexpected failures, enable buffer overflows, etc.
Mitigations (1)
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…
Effectiveness: High
Examples (2)
This example demonstrates a shopping interaction in which the user is free to specify the quantity of items to be purchased and a total is calculated.
... public static final double price = 20.00; int quantity = currentUser.getAttribute("quantity"); double total = price * quantity; chargeUser(total); ...
Bad · Java
This example asks the user for a height and width of an m X n game board with a maximum dimension of 100 squares.
... #define MAX_DIM 100 ... /* board dimensions */ int m,n, error; board_square_t *board; printf("Please specify the board height: \n"); error = scanf("%d", &m); if ( EOF == error ){ die("No integer passed: Die evil hacker!\n"); } printf("Please specify the board width: \n"); error = scanf("%d", &n); if ( EOF == error ){ die("No integer passed: Die evil hacker!\n"); } if ( m > MAX_DIM || n > MAX_DIM ) { die("Value too large: Die evil hacker!\n"); } board = (board_square_t*) malloc( m * n * sizeof(board_square_t)); ...
Bad · C
CVE ID Title CVSS Severity Published
CVE-2026-53540 Python-Multipart: Negative Content-Length in parse_form buffers the entire body in memory — python-multipart 3.7 Low 2026-06-22
CVE-2026-55392 NILFS utilities - Undefined Behavior and Out-of-Memory via Unvalidated s_log_block_size — nilfs-utils 5.5 Medium 2026-06-18
CVE-2026-55706 OpenBSD 输入验证错误漏洞 — OpenBSD 5.8 Medium 2026-06-17
CVE-2026-49110 WordPress Upsell Order Bump Offer for WooCommerce plugin <= 3.1.4 - Price Manipulation vulnerability — Upsell Order Bump Offer for WooCommerce 7.5 High 2026-06-15
CVE-2026-49078 WordPress WP Travel Engine plugin <= 6.7.10 - Other Vulnerability Type vulnerability — WP Travel Engine 7.5 High 2026-06-15
CVE-2026-45441 WordPress WpEvently plugin <= 5.3.3 - Other Vulnerability Type vulnerability — WpEvently 7.5 High 2026-06-15
CVE-2026-42657 WordPress Contest Gallery plugin <= 28.1.7 - Other Vulnerability Type vulnerability — Contest Gallery 6.5 Medium 2026-06-15
CVE-2026-12059 Cellopoint|CelloOS - Improper Access Control — CelloOS 8.8 High 2026-06-12
CVE-2026-11596 ConnectWise ScreenConnect 安全漏洞 — ScreenConnect 4.7 Medium 2026-06-10
CVE-2026-53689 libnfs 安全漏洞 — libnfs 7.1 High 2026-06-10
CVE-2026-49777 WordPress Product Slider Pro for WooCommerce plugin < 3.5.4 - Backdoor vulnerability — Product Slider Pro for WooCommerce 10.0 Critical 2026-06-05
CVE-2026-47329 Incorrect validation of field size in Ubuntu Linux AppArmor notification responses — Ubuntu Linux 3.3 Low 2026-05-28
CVE-2026-9801 Keycloak: keycloak: denial of service via malformed ldap password policy response — Red Hat build of Keycloak 26.4 4.9 Medium 2026-05-28
CVE-2026-7254 Open BMC Denial of Service — OPENBMC - - 2026-05-27
CVE-2026-9704 Keycloak: keycloak: privilege escalation due to oversized subject_token jwt — Red Hat build of Keycloak 26.4 6.8 Medium 2026-05-27
CVE-2026-3676 There are multiple vulnerabilities in IBM DB2 bundled with IBM Application Performance Management products. — Cloud APM, Base Private 6.5 Medium 2026-05-27
CVE-2026-42744 WordPress Ads by WPQuads plugin <= 3.0.2 - Bypass Vulnerability vulnerability — Ads by WPQuads 6.5 Medium 2026-05-27
CVE-2026-42732 WordPress Ads by WPQuads plugin <= 3.0.2 - Broken Authentication vulnerability — Ads by WPQuads 6.5 Medium 2026-05-27
CVE-2026-8047 Out-of-bounds Write in CODESYS Control — CODESYS Control RTE (SL) 7.5 High 2026-05-26
CVE-2025-15645 Ledger Nano X, Flex, Stax MCU Firmware Update Denial of Service — Ledger Nano X 4.6 Medium 2026-05-19
CVE-2026-8813 ExifReader 安全漏洞 — exifreader 7.5 High 2026-05-19
CVE-2026-44826 Vvveb: Vvveb CMS — Negative-quantity cart manipulation allows creation of orders with negative grand totals — Vvveb 7.5 High 2026-05-15
CVE-2025-66660 AMD Graphics Driver 安全漏洞 — AMD Radeon™ RX 6000 Series Graphics Products - - 2026-05-15
CVE-2026-0428 AMD Graphics Driver 安全漏洞 — AMD Instinct™ MI300A - - 2026-05-15
CVE-2025-14869 Improper Validation of Specified Quantity in Input in GitLab — GitLab 7.5 High 2026-05-14
CVE-2026-44459 Hono: Improper validation of NumericDate claims (exp, nbf, iat) in JWT verify() — hono 3.8 Low 2026-05-13
CVE-2026-25863 Conditional Fields for Contact Form 7 < 2.7.3 DoS via Uncontrolled Resource Consumption — Conditional Fields for Contact Form 7 7.5 High 2026-05-04
CVE-2025-14688 IBM® Db2® is vulnerable to a denial of service when fetching from certain tables under specific configurations — Db2 5.3 Medium 2026-04-30
CVE-2026-6915 Flaw in the updateUser Command May Allow Unauthorized Configuration Change — MongoDB Server 6.3 Medium 2026-04-29
CVE-2026-1352 IBM® Db2® is vulnerable to a trap or return SQLCODE -901 when compiling a specially crafted query with a defined index — Db2 6.5 Medium 2026-04-22

Vulnerabilities classified as CWE-1284 represent 250 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.