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CWE-240

Improper Handling of Inconsistent Structural Elements

The product does not handle or incorrectly handles when two or more structural elements should be consistent, but are not.

5
Assigned CVEs
541st
Commonality Rank
7.5
Avg CVSS
0.0%
In CISA KEV

Volume and Severity of Assigned CVEs Over Time

Volume of CVEs assigned to CWE-240 and their average CVSS base score over time.

Volume of CVEsAvg CVSS Base Score
First CVE
Nov 9, 2021
4 years ago
Most Recent CVE
Nov 17, 2025
249 days ago

Top CVEs Assigned This CWE

Top CVEs that have been assigned this CWE. A single CVE can have multiple CWE assignments, though many have just one.

5 CVEs · Highest risk first

CVEPublishedCVSSRiskKEVExploit
CVE-2021-31890CRITICAL
A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), PLUSCONTROL 1st Gen (All versi
Nov 9, 20219.129NONO
CVE-2025-4321HIGH
In a Bluetooth device, using RS9116-WiseConnect SDK experiences a Denial of Service, if it receives malformed L2CAP packets, only hard reset will bring the device to normal operati
Nov 17, 20257.124NONO
CVE-2022-40957MEDIUM
Inconsistent data in instruction and data cache when creating wasm code could lead to a potentially exploitable crash.<br>*This bug only affects Firefox on ARM64 platforms.*. This
Dec 22, 20226.523NONO
CVE-2023-39915HIGH
NLnet Labs' Routinator up to and including version 0.12.1 may crash when trying to parse certain malformed RPKI objects. This is due to insufficient input checking in the bcder lib
Sep 13, 20237.522NONO
CVE-2023-39914HIGH
NLnet Labs' bcder library up to and including version 0.7.2 panics while decoding certain invalid input data rather than rejecting the data with an error. This can affect both the
Sep 13, 20237.522NONO
View all 5 CVEs →

CVE Severity & Scoring

This CWEGlobal (All CVEs)
0.0-0.9
1.0-1.9
2.0-2.9
3.0-3.9
10%
4.0-4.9
19%
5.0-5.9
20%
16%
6.0-6.9
60%
26%
7.0-7.9
11%
8.0-8.9
20%
14%
9.0-10.0
unknown
CVSS Score Range

Exploit Exposure

Exploit activity across CVEs assigned to this CWE, including CVEs that carry other CWE assignments.

CISA KEV
0 CVEs
0.0% of CVEs· Bottom 1%
Metasploit
0 CVEs
0.0% of CVEs· Bottom 1%
Nuclei
0 CVEs
0.0% of CVEs· Bottom 1%
ExploitDB
0 CVEs
0.0% of CVEs· Bottom 1%

Social Chatter

Social posts that mention CVE IDs assigned to this CWE. This is assigned-CVE activity, not mentions of the CWE label itself.

Media Mentions

Media articles that mention CVE IDs assigned to this CWE. This is assigned-CVE coverage, not mentions of the CWE label itself.

Top Affected Vendors

Top Affected Products