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Weakness (CWE)

CWE-394: Unexpected Status Code or Return Value

Base Draft

The product does not properly check when a function or operation returns a value that is legitimate for the function, but is not expected by the product.

Source: MITRE CWE-394

18 results · Feed

  • High 8.1
    CVE-2026-123158 Exploited Public exploit

    sshd in OpenSSH before 10.6p2 on Linux, when musl libc is used without PAM, lacks a workaround for a password authentic…

  • Medium 6.3

    Crux Agent silently fails SKA preshared key rotation when SHA-512 peering is negotiated

    Crux Agent from 1.9.0 before 2.0.3 uses the full SKA bilocation key as the WireGuard preshared key. When a peering session negotiates use of SHA-512, the key produced is 64 bytes instead of the 32 bytes WireGuard requires. The agent does not validate this siz…

  • Low 2.9

    In Mbed TLS 3.2.0 though 3.6.6 and 4.0.0 through 4.1.0, an attacker who can cause an entropy source to fail can remove …

  • Medium 5.9

    In libexpat 2.8.2 and 2.8.3 before 2.8.4, misinterpretation of getentropy's return code leads to insufficient entropy, …

  • High 8.6

    Copeland XWEB and XWEB Pro Unexpected Status Code or Return Value

    A vulnerability exists in Copeland XWEB Pro version 1.12.1 and prior, in which an unexpected return value from the authentication routine is later on processed as a legitimate value, resulting in an authentication bypass.

  • High 7.1

    Improper return value within AMD uProf can allow a local attacker to bypass KSLR, potentially resulting in loss of conf…

  • Critical 10.0

    Lack of Graceful Error Handling - HTTP 5xx Error

    Lack of Graceful Error Handling - HTTP 5xx ErrorThis issue affects BLU-IC2: through 1.19.5; BLU-IC4: through 1.19.5 .

  • Critical 10.0

    Systemic Internal Server Errors - HTTP 500 Response

    Systemic Internal Server Errors - HTTP 500 ResponseThis issue affects BLU-IC2: through 1.19.5; BLU-IC4: through 1.19.5 .

  • Medium 6.9

    Possible thread exhaustion from processing http responses in PingFederate Google Adapter

    Improper handling of non-200 http responses in the PingFederate Google Adapter leads to thread exhaustion under normal usage conditions.

  • High 7.3

    In Yubico pam-u2f before 1.3.1, local privilege escalation can sometimes occur. This product implements a Pluggable Aut…

  • High 7.2

    Plv8 Deferred Trigger Privilege Escalation

    A user who can create objects in a database with plv8 3.2.1 installed is able to cause deferred triggers to execute as the Superuser during autovacuum.

  • Low 2.7

    A vulnerability has been identified in SINEC INS (All versions < V1.0 SP2 Update 2). The Web UI of affected devices doe…

  • High 7.5

    Server Data type confusion - info leak

    Server information leak of configuration data when an error is generated in response to a specially crafted message. See Honeywell Security Notification for recommendations on upgrading and versioning.

  • Medium 4.6

    Junos OS: The kernel will crash when certain USB devices are inserted

    An Unexpected Status Code or Return Value vulnerability in the kernel of Juniper Networks Junos OS allows an unauthenticated attacker with physical access to the device to cause a Denial of Service (DoS). When certain USB devices are connected to a USB port o…

  • Medium 5.3

    Potential Captcha Validate Bypass in flask-session-captcha

    flask-session-captcha is a package which allows users to extend Flask by adding an image based captcha stored in a server side session. In versions prior to 1.2.1, he `captcha.validate()` function would return `None` if passed no value (e.g. by submitting an …

  • Medium 6.5

    Invariant in IndexBoundsBuilder

    A user authorized to perform database queries may trigger denial of service by issuing specially crafted queries which trigger an invariant in the IndexBoundsBuilder. This issue affects MongoDB Server v4.2 versions prior to 4.2.2.

  • Medium 6.5

    Post-auth queries on compound index may crash mongod

    A user authorized to perform database queries may trigger denial of service by issuing specially crafted queries with compound indexes affecting QueryPlanner. This issue affects MongoDB Server v3.6 versions prior to 3.6.9 and MongoDB Server v4.0 versions prio…

  • High 7.5

    Junos OS: A malformed IPv4 packet received by Junos in an NG-mVPN scenario may cause the routing protocol daemon (rpd) process to core

    An unexpected status return value weakness in the Next-Generation Multicast VPN (NG-mVPN) service of Juniper Networks Junos OS allows attacker to cause a Denial of Service (DoS) condition and core the routing protocol daemon (rpd) process when a specific malf…