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CWE-440

44 CVEs • Abstraction: Base

Expected Behavior Violation

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

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CVEs (44)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1W1.fi
1Hostapd
Jun 17, 2026
Dec 12, 2019
N/A· v4
6.5 MEDIUM· v3
3.3 LOW· v2
An exploitable denial-of-service vulnerability exists in the 802.11w security state handling for hostapd 2.6 connected clients with valid 802.11w sessions. By simulating an incomplete new association, an attacker can tri...Show more
An exploitable denial-of-service vulnerability exists in the 802.11w security state handling for hostapd 2.6 connected clients with valid 802.11w sessions. By simulating an incomplete new association, an attacker can trigger a deauthentication against stations using 802.11w, resulting in a denial of service.Show less
1W1.fi
1Hostapd
Jun 17, 2026
Dec 12, 2019
N/A· v4
6.5 MEDIUM· v3
3.3 LOW· v2
An exploitable denial-of-service vulnerability exists in the hostapd 2.6, where an attacker could trigger AP to send IAPP location updates for stations, before the required authentication process has completed. This coul...Show more
An exploitable denial-of-service vulnerability exists in the hostapd 2.6, where an attacker could trigger AP to send IAPP location updates for stations, before the required authentication process has completed. This could lead to different denial of service scenarios, either by causing CAM table attacks, or by leading to traffic flapping if faking already existing clients in other nearby Aps of the same wireless infrastructure. An attacker can forge Authentication and Association Request packets to trigger this vulnerability.Show less
1Eclipse
1Mosquitto
Nov 21, 2024
Mar 27, 2019
N/A· v4
8.1 HIGH· v3
6.8 MEDIUM· v2
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 treat this as though no ACL file has bee...Show more
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 treat this as though no ACL file has been defined and use a default allow policy. The new behaviour is to have an empty ACL file mean that all access is denied, which is not a useful configuration but is not unexpected.Show less
1Siemens
5Scalance X 200 Firmware
Scalance X 300 FirmwareScalance Xc 200 Firmware+2 more
Jun 17, 2026
Mar 26, 2019
N/A· v4
9.1 CRITICAL· v3
6.4 MEDIUM· v2
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 transmit malicious packets to systems in...Show more
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 transmit malicious packets to systems in the mirrored network, possibly influencing their configuration and runtime behavior.Show less