CWE-343 (Predictable Value Range from Previous Values) documents a weakness type used across vulnerability databases and security assessments. Use the sections below for definition, context, and mapped CVEs.
The product's random number generator produces a series of values which, when observed, can be used to infer a relatively small range of possibilities for the next value that could be generated.
| Kind | Name | Class | Prevalence | OS / CPE |
|---|---|---|---|---|
| language | — | Not Language-Specific | Undetermined | — |
These CVEs are mapped to this weakness in this database and kept for traceability and search.
| CVE | Published | Summary |
|---|---|---|
| CVE-2026-33221 | 2026-03-20 | Nhost is an open source Firebase alternative with GraphQL. Prior to version 0.12.0, the storage service's file upload handler trusts the client-provided Content-Type header without performing server-s… |
| CVE-2026-32694 | 2026-03-18 | In Juju from version 3.0.0 through 3.6.18, when a secret owner grants permissions to a secret to a grantee, the secret owner relies exclusively on a predictable XID of the secret to verify ownership. … |
| CVE-2017-7901 | 2017-06-30 | A Predictable Value Range from Previous Values issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1100 programmable-logic controllers 1763-L16AWA, Series A and B, Version 16.00 and p… |
| CVE-2017-6030 | 2017-06-30 | A predictable value range from previous values issue was discovered in Schneider Electric Modicon PLCs Modicon M221, firmware versions prior to Version 1.5.0.0, Modicon M241, firmware versions prior t… |
| CVE-2014-5409 | 2015-03-14 | The 17046 Ethernet card before 94450214LFMT100SEM-L.R3-CL for the GE Digital Energy Hydran M2 does not properly generate random values for TCP Initial Sequence Numbers (ISNs), which makes it easier fo… |
| Date | Name | Version | Importance | Comment |
|---|---|---|---|---|
| 2008-07-01 | Eric Dalci | 1.0 | — | updated Time_of_Introduction |
| 2008-09-08 | CWE Content Team | 1.0 | — | updated Relationships, Taxonomy_Mappings |
| 2008-10-14 | CWE Content Team | 1.0.1 | — | updated Description |
| 2009-03-10 | CWE Content Team | 1.3 | — | updated Potential_Mitigations |
| 2009-12-28 | CWE Content Team | 1.7 | — | updated Potential_Mitigations |
| 2010-06-21 | CWE Content Team | 1.9 | — | updated Potential_Mitigations |
| 2011-06-01 | CWE Content Team | 1.13 | — | updated Common_Consequences |
| 2011-06-27 | CWE Content Team | 2.0 | — | updated Common_Consequences |
| 2011-09-13 | CWE Content Team | 2.1 | — | updated Potential_Mitigations, References |
| 2012-05-11 | CWE Content Team | 2.2 | — | updated References, Relationships |
| 2012-10-30 | CWE Content Team | 2.3 | — | updated Potential_Mitigations |
| 2017-11-08 | CWE Content Team | 3.0 | — | updated Applicable_Platforms, References |
| 2020-02-24 | CWE Content Team | 4.0 | — | updated Relationships |
| 2021-07-20 | CWE Content Team | 4.5 | — | updated Maintenance_Notes |
| 2023-01-31 | CWE Content Team | 4.10 | — | updated Description |
| 2023-04-27 | CWE Content Team | 4.11 | — | updated References, Relationships |
| 2023-06-29 | CWE Content Team | 4.12 | — | updated Mapping_Notes |
| 2025-09-09 | CWE Content Team | 4.18 | — | updated References |
| 2025-12-11 | CWE Content Team | 4.19 | — | updated Weakness_Ordinalities |