CWE-166（Improper Handling of Missing Special Element）描述一种在漏洞数据库与安全评估中使用的弱点类型；定义、背景与映射 CVE 见下方各节。
The product receives input from an upstream component, but it does not handle or incorrectly handles when an expected special element is missing.
| 类型 | 名称 | 类 | 普遍性 | OS / CPE |
|---|---|---|---|---|
| language | — | Not Language-Specific | Undetermined | — |
下列 CVE 在本库中映射到该弱点，并保留以便追溯与检索。
| CVE | 公开时间 | 摘要 |
|---|---|---|
| CVE-2026-32792 | 2026-05-20 | NLnet Labs Unbound 1.6.2 up to and including version 1.25.0 has a denial of service vulnerability when compiled with DNSCrypt support ('--enable-dnscrypt'). A bad DNSCrypt query could underflow Unboun… |
| CVE-2026-34582 | 2026-04-07 | Botan is a C++ cryptography library. Prior to version 3.11.1, the TLS 1.3 implementation allowed ApplicationData records to be processed prior to the Finished message being received. A server which is… |
| CVE-2026-21218 | 2026-02-10 | Improper handling of missing special element in .NET allows an unauthorized attacker to perform spoofing over a network. |
| CVE-2024-38091 | 2024-07-09 | Microsoft WS-Discovery Denial of Service Vulnerability |
| 日期 | 名称 | 版本 | 重要性 | 评论 |
|---|---|---|---|---|
| 2008-07-01 | Eric Dalci | 1.0 | — | updated Potential_Mitigations, Time_of_Introduction |
| 2008-09-08 | CWE Content Team | 1.0 | — | updated Relationships, Other_Notes, Taxonomy_Mappings |
| 2009-03-10 | CWE Content Team | 1.3 | — | updated Relationships |
| 2009-05-27 | CWE Content Team | 1.4 | — | updated Description, Name |
| 2009-07-27 | CWE Content Team | 1.5 | — | updated Potential_Mitigations |
| 2009-10-29 | CWE Content Team | 1.6 | — | updated Other_Notes |
| 2011-03-29 | CWE Content Team | 1.12 | — | updated Potential_Mitigations |
| 2011-06-01 | CWE Content Team | 1.13 | — | updated Common_Consequences |
| 2012-05-11 | CWE Content Team | 2.2 | — | updated Relationships |
| 2012-10-30 | CWE Content Team | 2.3 | — | updated Potential_Mitigations |
| 2014-07-30 | CWE Content Team | 2.8 | — | updated Relationships |
| 2017-05-03 | CWE Content Team | 2.11 | — | updated Potential_Mitigations |
| 2017-11-08 | CWE Content Team | 3.0 | — | updated Applicable_Platforms |
| 2020-02-24 | CWE Content Team | 4.0 | — | updated Potential_Mitigations, Relationships |
| 2020-06-25 | CWE Content Team | 4.1 | — | updated Potential_Mitigations |
| 2023-01-31 | CWE Content Team | 4.10 | — | updated Description, Potential_Mitigations |
| 2023-04-27 | CWE Content Team | 4.11 | — | updated Relationships |
| 2023-06-29 | CWE Content Team | 4.12 | — | updated Mapping_Notes |
| 2024-02-29 | CWE Content Team | 4.14 | — | updated Relationships |
| 2025-12-11 | CWE Content Team | 4.19 | — | updated Weakness_Ordinalities |