CWE-684Class

Incorrect Provision of Specified Functionality

Draft in the CWE catalog · 29 CVEs mapped

29
CVEs mapped
6.7
Median CVSS
What it is

The code does not function according to its published specifications, potentially leading to incorrect usage.

Recent examples
5.9cvss
CVE-2026-79126

CVE-2026-79126 - MEDIUM Severity Vulnerability

Incorrect provision of specified functionality in Proxy in Google Chrome on on Windows prior to 152.0.7977.65 allowed an adjacent attacker to potentially obtain sensitive information via crafted network traffic. (Chromium security severity: Low)

MEDIUMno explanation yet
0%
epss
none
CVE-2026-52735

CVE-2026-52735 - UNKNOWN Severity Vulnerability

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, Zebra can accept a block that zcashd rejects because the P2SH signature-operation counter undercounts redeem scripts containing a disabled opcode followed by signature opcodes. In zebra-script/src/lib.rs, p2sh_input_sigop_count used the pure-Rust script::Code::sig_op_count path, whose try_fold parser stops at disabled opcodes such as OP_CODESEPARATOR and returns only the partial count accumulated before the error. The zcashd reference implementation continues static signature-operation counting through disabled opcodes, so an attacker can broadcast P2SH spends that Zebra counts below MAX_BLOCK_SIGOPS while zcashd counts above the 20,000-operation limit. If a Zebra miner includes those transactions, Zebra validators accept the block while zcashd validators reject it, creating a consensus chain split that affects network integrity and availability without requiring the attacker to produce a block. This issue is fixed in version 4.5.0.

no explanation yet
0%
epss
3.7cvss
CVE-2026-44597

Tor before 0.4.9.7 has an out-of-bounds read when an END, a TRUNCATE, or a TRUNCATED cell lacks a reason in its payload, aka TROVE-2026-011

Tor before 0.4.9.7 has an out-of-bounds read when an END, a TRUNCATE, or a TRUNCATED cell lacks a reason in its payload, aka TROVE-2026-011.

LOWno explanation yet
0%
epss
The record
Technical detail
CWE ID
CWE-684
Abstraction
Class
Structure
Simple
Status
Draft