CWE-196（Unsigned to Signed Conversion Error）描述一種在漏洞資料庫與安全評估中使用的弱點類型；定義、背景與對應 CVE 見下方各節。
The product uses an unsigned primitive and performs a cast to a signed primitive, which can produce an unexpected value if the value of the unsigned primitive can not be represented using a signed primitive.
| 類型 | 名稱 | 類 | 普遍性 | OS / CPE |
|---|---|---|---|---|
| language | C | — | Undetermined | — |
| language | C++ | — | Undetermined | — |
下列 CVE 在本庫中對應到該弱點，並保留以便追溯與檢索。
| CVE | 公開時間 | 摘要 |
|---|---|---|
| CVE-2026-14454 | 2026-07-08 | Imager versions before 1.033 for Perl treat unsigned EXIF IFD entry counts as signed. Imager mishandled large EXIF IFD entry count values, treating them as negative numbers. This could lead to an at… |
| CVE-2026-34155 | 2026-03-31 | RAUC controls the update process on embedded Linux systems. Prior to version 1.15.2, RAUC bundles using the 'plain' format exceeding a payload size of 2 GiB cause an integer overflow which results in … |
| CVE-2023-0185 | 2023-04-01 | NVIDIA GPU Display Driver for Linux contains a vulnerability in the kernel mode layer, where sign conversion issuescasting an unsigned primitive to signed may lead to denial of service or information … |
| CVE-2022-36025 | 2022-09-23 | Besu is a Java-based Ethereum client. In versions newer than 22.1.3 and prior to 22.7.1, Besu is subject to an Incorrect Conversion between Numeric Types. An error in 32 bit signed and unsigned types … |
| CVE-2020-13545 | 2021-01-06 | An exploitable signed conversion vulnerability exists in the TextMaker document parsing functionality of SoftMaker Office 2021’s TextMaker application. A specially crafted document can cause the docum… |
| CVE-2020-7067 | 2020-04-27 | In PHP versions 7.2.x below 7.2.30, 7.3.x below 7.3.17 and 7.4.x below 7.4.5, if PHP is compiled with EBCDIC support (uncommon), urldecode() function can be made to access locations past the allocated… |
| 日期 | 名稱 | 版本 | 重要性 | 評論 |
|---|---|---|---|---|
| 2008-09-08 | CWE Content Team | 1.0 | — | updated Applicable_Platforms, Common_Consequences, Relationships, Other_Notes, Taxonomy_Mappings |
| 2009-05-27 | CWE Content Team | 1.4 | — | updated Demonstrative_Examples |
| 2009-10-29 | CWE Content Team | 1.6 | — | updated Common_Consequences |
| 2010-12-13 | CWE Content Team | 1.11 | — | updated Other_Notes |
| 2011-06-01 | CWE Content Team | 1.13 | — | updated Common_Consequences |
| 2012-05-11 | CWE Content Team | 2.2 | — | updated References, Relationships |
| 2012-10-30 | CWE Content Team | 2.3 | — | updated Potential_Mitigations |
| 2014-06-23 | CWE Content Team | 2.7 | — | updated Demonstrative_Examples, Description, Other_Notes |
| 2014-07-30 | CWE Content Team | 2.8 | — | updated Relationships, Taxonomy_Mappings |
| 2020-02-24 | CWE Content Team | 4.0 | — | updated Relationships |
| 2020-08-20 | CWE Content Team | 4.2 | — | updated Relationships |
| 2020-12-10 | CWE Content Team | 4.3 | — | updated Relationships |
| 2021-03-15 | CWE Content Team | 4.4 | — | updated References |
| 2023-01-31 | CWE Content Team | 4.10 | — | updated Description |
| 2023-04-27 | CWE Content Team | 4.11 | — | updated Relationships |
| 2023-06-29 | CWE Content Team | 4.12 | — | updated Mapping_Notes |
| 2025-12-11 | CWE Content Team | 4.19 | — | updated Detection_Factors, Weakness_Ordinalities |