CWE-839 (Numeric Range Comparison Without Minimum Check) documents a weakness type used across vulnerability databases and security assessments. Use the sections below for definition, context, and mapped CVEs.
The product checks a value to ensure that it is less than or equal to a maximum, but it does not also verify that the value is greater than or equal to the minimum.
| Kind | Name | Class | Prevalence | OS / CPE |
|---|---|---|---|---|
| language | C | — | Often | — |
| language | C++ | — | Often | — |
These CVEs are mapped to this weakness in this database and kept for traceability and search.
| CVE | Published | Summary |
|---|---|---|
| CVE-2026-48840 | 2026-05-30 | Exim 4.88 before 4.99.4, in some proxy configurations, mishandles certain short payloads, leading to disclosure of uninitialized stack memory values to a client. |
| CVE-2023-0425 | 2023-08-07 | ABB is aware of vulnerabilities in the product versions listed below. An update is available that resolves the reported vulnerabilities in the product versions under maintenance. An attacker who succ… |
| CVE-2023-22854 | 2023-02-13 | The ccmweb component of Mitel MiContact Center Business server 9.2.2.0 through 9.4.1.0 could allow an unauthenticated attacker to download arbitrary files, due to insufficient restriction of URL param… |
| CVE-2019-20925 | 2020-11-24 | An unauthenticated client can trigger denial of service by issuing specially crafted wire protocol messages, which cause the message decompressor to incorrectly allocate memory. This issue affects Mon… |
| Date | Name | Version | Importance | Comment |
|---|---|---|---|---|
| 2011-06-01 | CWE Content Team | 1.13 | — | updated Common_Consequences |
| 2012-05-11 | CWE Content Team | 2.2 | — | updated Demonstrative_Examples, References, Relationships |
| 2014-02-18 | CWE Content Team | 2.6 | — | updated Relationships |
| 2018-03-27 | CWE Content Team | 3.1 | — | updated Description |
| 2019-01-03 | CWE Content Team | 3.2 | — | updated Relationships |
| 2023-01-31 | CWE Content Team | 4.10 | — | updated Alternate_Terms, Description |
| 2023-04-27 | CWE Content Team | 4.11 | — | updated Relationships |
| 2023-06-29 | CWE Content Team | 4.12 | — | updated Mapping_Notes |
| 2023-10-26 | CWE Content Team | 4.13 | — | updated Observed_Examples |
| 2025-09-09 | CWE Content Team | 4.18 | — | updated Demonstrative_Examples |
| 2025-12-11 | CWE Content Team | 4.19 | — | updated Detection_Factors, Time_of_Introduction, Weakness_Ordinalities |