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CWE-440

Expected Behavior Violation

A feature, API, or function does not perform according to its specification.

41
Assigned CVEs
247th
Commonality Rank
6.0
Avg CVSS
0.0%
In CISA KEV

Volume and Severity of Assigned CVEs Over Time

Volume of CVEs assigned to CWE-440 and their average CVSS base score over time.

Volume of CVEsAvg CVSS Base Score
First CVE
Mar 26, 2019
7 years ago
Most Recent CVE
Jun 19, 2026
35 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.

41 CVEs · Highest risk first

CVEPublishedCVSSRiskKEVExploit
CVE-2021-41035CRITICAL
In Eclipse Openj9 before version 0.29.0, the JVM does not throw IllegalAccessError for MethodHandles that invoke inaccessible interface methods.
Oct 25, 20219.832NONO
CVE-2026-8806HIGH
Expected Behavior Violation vulnerability in Mitsubishi Electric MELSEC iQ-F Series FX5-ENET/IP Ethernet Module FX5-ENET/IP all versions allows a remote attacker to cause a denial-
Jun 19, 20268.730NONO
CVE-2019-6569CRITICAL
The monitor barrier of the affected products insufficiently blocks data from being forwarded over the mirror port into the mirrored network. An attacker could use this behavior to
Mar 26, 20199.129NONO
CVE-2024-32971CRITICAL
Apollo Router is a configurable, graph router written in Rust to run a federated supergraph that uses Apollo Federation 2. The affected versions of Apollo Router contain a bug that
May 2, 20249.027NONO
CVE-2019-5108MEDIUM
An exploitable denial-of-service vulnerability exists in the Linux kernel prior to mainline 5.3. An attacker could exploit this vulnerability by triggering AP to send IAPP location
Dec 23, 20196.527NONO
CVE-2026-42534MEDIUM
NLnet Labs Unbound up to and including version 1.25.0 has a vulnerability in the jostle logic that could defeat its purpose and degrade resolution performance. Retransmits of the s
May 20, 20265.326NONO
CVE-2025-8850HIGH
In danny-avila/librechat version 0.7.9, there is an insecure API design issue in the 2-Factor Authentication (2FA) flow. The system allows users to disable 2FA without requiring a
Oct 30, 20258.825NONO
CVE-2022-3281HIGH
WAGO Series PFC100/PFC200, Series Touch Panel 600, Compact Controller CC100 and Edge Controller in multiple versions are prone to a loss of MAC-Address-Filtering after reboot. This
Oct 17, 20227.525NONO
CVE-2018-12550HIGH
When Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) is configured to use an ACL file, and that ACL file is empty, or contains only comments or blank lines, then Mosquitto will
Mar 27, 20198.125NONO
CVE-2026-42752MEDIUM
Unauthenticated Bypass Vulnerability in Stripe Payments <= 2.0.98 versions.
Jun 15, 20266.524NONO
View all 41 CVEs →

CVE Severity & Scoring

This CWEGlobal (All CVEs)
0.0-0.9
1.0-1.9
2.0-2.9
3.0-3.9
15%
10%
4.0-4.9
32%
19%
5.0-5.9
20%
16%
6.0-6.9
10%
26%
7.0-7.9
11%
8.0-8.9
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