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CWE-754

584 CVEs • Abstraction: Class • Likelihood of Exploit: Medium

Improper Check for Unusual or Exceptional Conditions

The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product.

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CVEs (584)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Schneider Electric
9Hmigto Firmware
Hmigtu FirmwareHmigxo Firmware+6 more
Sep 30, 2025
Sep 17, 2019
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
A CWE-754 – Improper Check for Unusual or Exceptional Conditions vulnerability exists in Magelis HMI Panels (all versions of - HMIGTO, HMISTO, XBTGH, HMIGTU, HMIGTUX, HMISCU, HMISTU, XBTGT, XBTGT, HMIGXO, HMIGXU), which...Show more
A CWE-754 – Improper Check for Unusual or Exceptional Conditions vulnerability exists in Magelis HMI Panels (all versions of - HMIGTO, HMISTO, XBTGH, HMIGTU, HMIGTUX, HMISCU, HMISTU, XBTGT, XBTGT, HMIGXO, HMIGXU), which could cause a temporary freeze of the HMI when a high rate of frames is received. When the attack stops, the buffered commands are processed by the HMI panel.Show less
1Schneider Electric
1Bmxnor0200h Firmware
Nov 21, 2024
Sep 17, 2019
N/A· v4
8.6 HIGH· v3
5.0 MEDIUM· v2
A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in BMXNOR0200H Ethernet / Serial RTU module (all firmware versions), which could cause disconnection of active connections when an unus...Show more
A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in BMXNOR0200H Ethernet / Serial RTU module (all firmware versions), which could cause disconnection of active connections when an unusually high number of IEC 60870- 5-104 packets are received by the module on port 2404/TCP.Show less
1Schneider Electric
2Bmxnor0200h Firmware
Modicon M340 Firmware
Nov 21, 2024
Sep 17, 2019
N/A· v4
7.5 HIGH· v3
7.8 HIGH· v2
A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in BMXNOR0200H Ethernet / Serial RTU module (all firmware versions) and Modicon M340 controller (all firmware versions), which could ca...Show more
A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in BMXNOR0200H Ethernet / Serial RTU module (all firmware versions) and Modicon M340 controller (all firmware versions), which could cause denial of service when truncated SNMP packets on port 161/UDP are received by the device.Show less
1Schneider Electric
2Modicon Quantum 140noe77101 Firmware
Modicon Quantum 140noe77111 Firmware
Nov 21, 2024
Sep 17, 2019
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
An Improper Check for Unusual or Exceptional Conditions (CWE-754) vulnerability exists in Modicon Quantum 140 NOE771x1 version 6.9 and earlier, which could cause denial of service when the module receives an IP fragmente...Show more
An Improper Check for Unusual or Exceptional Conditions (CWE-754) vulnerability exists in Modicon Quantum 140 NOE771x1 version 6.9 and earlier, which could cause denial of service when the module receives an IP fragmented packet with a length greater than 65535 bytes. The module then requires a power cycle to recover.Show less
1Suricata Ids
1Suricata
Nov 21, 2024
Aug 28, 2019
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
An issue was discovered in Suricata 4.1.3. If the function filetracker_newchunk encounters an unsafe "Some(sfcm) => { ft.new_chunk }" item, then the program enters an smb/files.rs error condition and crashes.
1Virustotal
1Yara
Nov 21, 2024
Jul 31, 2019
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
An exploitable denial of service vulnerability exists in the object lookup functionality of Yara 3.8.1. A specially crafted binary file can cause a negative value to be read to satisfy an assert, resulting in Denial of S...Show more
An exploitable denial of service vulnerability exists in the object lookup functionality of Yara 3.8.1. A specially crafted binary file can cause a negative value to be read to satisfy an assert, resulting in Denial of Service. An attacker can create a malicious binary to trigger this vulnerability.Show less
2Davegamble
Oracle
2Cjson
Timesten In Memory Database
Jul 22, 2025
Jul 19, 2019
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
DaveGamble/cJSON cJSON 1.7.8 is affected by: Improper Check for Unusual or Exceptional Conditions. The impact is: Null dereference, so attack can cause denial of service. The component is: cJSON_GetObjectItemCaseSensitiv...Show more
DaveGamble/cJSON cJSON 1.7.8 is affected by: Improper Check for Unusual or Exceptional Conditions. The impact is: Null dereference, so attack can cause denial of service. The component is: cJSON_GetObjectItemCaseSensitive() function. The attack vector is: crafted json file. The fixed version is: 1.7.9 and later.Show less
1Google
1Api C++ Client
Nov 21, 2024
May 30, 2019
N/A· v4
8.6 HIGH· v3
5.0 MEDIUM· v2
An unhandled exception vulnerability exists during Google Sign-In with Google API C++ Client before 2019-04-10. It potentially causes an outage of third-party services that were not designed to recover from exceptions. O...Show more
An unhandled exception vulnerability exists during Google Sign-In with Google API C++ Client before 2019-04-10. It potentially causes an outage of third-party services that were not designed to recover from exceptions. On the client, ID token handling can cause an unhandled exception because of misinterpretation of an integer as a string, resulting in denial-of-service and then other users can no longer login/sign-in to the affected third-party service. Once this third-party service uses Google Sign-In with google-api-cpp-client, a malicious user can trigger this client/auth/oauth2_authorization.cc vulnerability by requesting the client to receive the ID token from a Google authentication server.Show less
1Schneider Electric
4Modicon M340 Firmware
Modicon M580 FirmwareModicon Premium Firmware+1 more
Nov 21, 2024
May 22, 2019
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
A CWE-248: Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause a possible Denial of Service when writing out of bounds variabl...Show more
A CWE-248: Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause a possible Denial of Service when writing out of bounds variables to the controller over Modbus.Show less
1Schneider Electric
4Modicon M340 Firmware
Modicon M580 FirmwareModicon Premium Firmware+1 more
Nov 21, 2024
May 22, 2019
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
A CWE-248: Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause a possible denial of Service when writing invalid memory blocks...Show more
A CWE-248: Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause a possible denial of Service when writing invalid memory blocks to the controller over Modbus.Show less
1Schneider Electric
4Modicon M340 Firmware
Modicon M580 FirmwareModicon Premium Firmware+1 more
Nov 21, 2024
May 22, 2019
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
A CWE-248 Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause a Denial of Service when sending invalid breakpoint parameters t...Show more
A CWE-248 Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause a Denial of Service when sending invalid breakpoint parameters to the controller over ModbusShow less
1Schneider Electric
4Modicon M340 Firmware
Modicon M580 FirmwareModicon Premium Firmware+1 more
Nov 21, 2024
May 22, 2019
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
A CWE-248 Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause a denial of Service when sending invalid debug parameters to the...Show more
A CWE-248 Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause a denial of Service when sending invalid debug parameters to the controller over Modbus.Show less
1Schneider Electric
4Modicon M340 Firmware
Modicon M580 FirmwareModicon Premium Firmware+1 more
Nov 21, 2024
May 22, 2019
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
A CWE-248: Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause denial of service when reading invalid physical memory blocks i...Show more
A CWE-248: Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause denial of service when reading invalid physical memory blocks in the controller over ModbusShow less
1Schneider Electric
1Triconex Tristation Emulator
Nov 21, 2024
May 22, 2019
N/A· v4
5.9 MEDIUM· v3
4.3 MEDIUM· v2
A CWE-754 Improper Check for Unusual or Exceptional Conditions vulnerability exists in Triconex TriStation Emulator V1.2.0, which could cause the emulator to crash when sending a specially crafted packet. The emulator is...Show more
A CWE-754 Improper Check for Unusual or Exceptional Conditions vulnerability exists in Triconex TriStation Emulator V1.2.0, which could cause the emulator to crash when sending a specially crafted packet. The emulator is used infrequently for application logic testing. It is susceptible to an attack only while running in off-line mode. This vulnerability does not exist in Triconex hardware products and therefore has no effect on the operating safety functions in a plant.Show less
1Schneider Electric
4Modicon M340 Firmware
Modicon M580 FirmwareModicon Premium Firmware+1 more
May 29, 2026
May 22, 2019
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists which could cause a possible Denial of Service when specific Modbus frames are sent to the controller in the products: Modicon M340 - f...Show more
A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists which could cause a possible Denial of Service when specific Modbus frames are sent to the controller in the products: Modicon M340 - firmware versions prior to V3.01, Modicon M580 - firmware versions prior to V2.80, All firmware versions of Modicon Quantum and Modicon Premium.Show less
1Cisco
1Ios Xr
Nov 21, 2024
May 16, 2019
N/A· v4
6.5 MEDIUM· v3
6.1 MEDIUM· v2
A vulnerability in the Border Gateway Patrol (BGP) Multiprotocol Label Switching (MPLS)-based Ethernet VPN (EVPN) implementation of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to trigger a den...Show more
A vulnerability in the Border Gateway Patrol (BGP) Multiprotocol Label Switching (MPLS)-based Ethernet VPN (EVPN) implementation of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to trigger a denial of service (DoS) condition on an affected device. The vulnerability is due to a logic error that occurs when the affected software processes specific EVPN routing information. An attacker could exploit this vulnerability by injecting malicious traffic patterns into the targeted EVPN network. A successful exploit could result in a crash of the l2vpn_mgr process on Provider Edge (PE) device members of the same EVPN instance (EVI). On each of the affected devices, a crash could lead to system instability and the inability to process or forward traffic through the device, resulting in a DoS condition that would require manual intervention to restore normal operating conditions.Show less
1Anker In
1Roav Dashcam A1 Firmware
Nov 21, 2024
May 13, 2019
N/A· v4
7.5 HIGH· v3
7.8 HIGH· v2
An exploitable denial-of-service vulnerability exists in the XML_GetScreen Wi-Fi command of the NT9665X Chipset firmware, running on the Anker Roav A1 Dashcam, version RoavA1SWV1.9. A specially crafted set of packets can...Show more
An exploitable denial-of-service vulnerability exists in the XML_GetScreen Wi-Fi command of the NT9665X Chipset firmware, running on the Anker Roav A1 Dashcam, version RoavA1SWV1.9. A specially crafted set of packets can cause an invalid memory dereference, resulting in a device reboot.Show less
1Nvidia
1Jetson Tx2
Nov 21, 2024
Apr 11, 2019
N/A· v4
6.1 MEDIUM· v3
3.6 LOW· v2
NVIDIA Jetson TX2 contains a vulnerability in the kernel driver (on all versions prior to R28.3) where the ARM System Memory Management Unit (SMMU) improperly checks for a fault condition, causing transactions to be disc...Show more
NVIDIA Jetson TX2 contains a vulnerability in the kernel driver (on all versions prior to R28.3) where the ARM System Memory Management Unit (SMMU) improperly checks for a fault condition, causing transactions to be discarded, which may lead to denial of service.Show less
1Juniper
1Junos
Nov 21, 2024
Apr 10, 2019
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
When configuring a stateless firewall filter in Junos OS, terms named using the format "internal-n" (e.g. "internal-1", "internal-2", etc.) are silently ignored. No warning is issued during configuration, and the config...Show more
When configuring a stateless firewall filter in Junos OS, terms named using the format "internal-n" (e.g. "internal-1", "internal-2", etc.) are silently ignored. No warning is issued during configuration, and the config is committed without error, but the filter criteria will match all packets leading to unexpected results. Affected releases are Juniper Networks Junos OS: All versions prior to and including 12.3; 14.1X53 versions prior to 14.1X53-D130, 14.1X53-D49; 15.1 versions prior to 15.1F6-S12, 15.1R7-S4; 15.1X49 versions prior to 15.1X49-D161, 15.1X49-D170; 15.1X53 versions prior to 15.1X53-D236, 15.1X53-D496, 15.1X53-D69; 16.1 versions prior to 16.1R7-S4, 16.1R7-S5; 16.2 versions prior to 16.2R2-S9; 17.1 versions prior to 17.1R3; 17.2 versions prior to 17.2R1-S8, 17.2R3-S1; 17.3 versions prior to 17.3R3-S4; 17.4 versions prior to 17.4R1-S7, 17.4R2-S3; 18.1 versions prior to 18.1R2-S4, 18.1R3-S4; 18.2 versions prior to 18.2R1-S5, 18.2R2-S1; 18.2X75 versions prior to 18.2X75-D40; 18.3 versions prior to 18.3R1-S3; 18.4 versions prior to 18.4R1-S1, 18.4R1-S2.Show less
1Z.cash
1Zcash
Nov 21, 2024
Mar 27, 2019
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
Zcash, before the Sapling network upgrade (2018-10-28), had a counterfeiting vulnerability. A key-generation process, during evaluation of polynomials related to a to-be-proven statement, produced certain bypass elements...Show more
Zcash, before the Sapling network upgrade (2018-10-28), had a counterfeiting vulnerability. A key-generation process, during evaluation of polynomials related to a to-be-proven statement, produced certain bypass elements. Availability of these elements allowed a cheating prover to bypass a consistency check, and consequently transform the proof of one statement into an ostensibly valid proof of a different statement, thereby breaking the soundness of the proof system. This misled the original Sprout zk-SNARK verifier into accepting the correctness of a transaction.Show less