Common Weakness Enumeration
CWE-754
Allowed-with-ReviewImproper Check for Unusual or Exceptional Conditions
Abstraction: Class · Status: Incomplete
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.
954 vulnerabilities reference this CWE, most recent first.
CVE-2023-34099 (GCVE-0-2023-34099)
Vulnerability from cvelistv5 – Published: 2023-06-27 16:29 – Updated: 2024-11-07 17:03
VLAI
EPSS
VEX
Title
Improper mail validation in Shopware
Summary
Shopware is an open source e-commerce software. The mail validation in the registration process had some flaws, so it was possible to construct different mail addresses, that in the end result in the same address, which is shared by multiple accounts. This issue has been addressed in version 5.7.18 and users are advised to update. There are no known workarounds for this vulnerability.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-07 17:02 UTC
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/shopware/shopware/security/adv… | x_refsource_CONFIRM |
| https://github.com/shopware5/shopware/commit/39cc… | x_refsource_MISC |
| https://docs.shopware.com/en/shopware-5-en/securi… | x_refsource_MISC |
| https://www.shopware.com/en/changelog-sw5/#5-7-18 | x_refsource_MISC |
Impacted products
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CVE-2023-32726 (GCVE-0-2023-32726)
Vulnerability from cvelistv5 – Published: 2023-12-18 09:17 – Updated: 2025-11-03 21:48
VLAI
EPSS
VEX
Title
Possible buffer overread from reading DNS responses
Summary
The vulnerability is caused by improper check for check if RDLENGTH does not overflow the buffer in response from DNS server.
Severity
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
Impacted products
Date Public
2023-11-06 11:17
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CVE-2023-32716 (GCVE-0-2023-32716)
Vulnerability from cvelistv5 – Published: 2023-06-01 16:34 – Updated: 2025-02-28 11:03
VLAI
EPSS
VEX
Title
Denial of Service via the 'dump' SPL command
Summary
In Splunk Enterprise versions below 9.0.5, 8.2.11, and 8.1.14, and Splunk Cloud Platform versions below 9.0.2303.100, an attacker can exploit a vulnerability in the {{dump}} SPL command to cause a denial of service by crashing the Splunk daemon.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-08 21:02 UTC
CWE
- CWE-754 - The software 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 software.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Splunk | Splunk Enterprise |
Affected:
8.1 , < 8.1.14
(custom)
Affected: 8.2 , < 8.2.11 (custom) Affected: 9.0 , < 9.0.5 (custom) |
|
| Splunk | Splunk Cloud Platform |
Affected:
- , < 9.0.2303.100
(custom)
|
Date Public
2023-06-01 00:00
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CVE-2023-29198 (GCVE-0-2023-29198)
Vulnerability from cvelistv5 – Published: 2023-09-06 20:13 – Updated: 2024-09-26 15:12
VLAI
EPSS
VEX
Title
Context isolation bypass via nested unserializable return value in Electron
Summary
Electron is a framework which lets you write cross-platform desktop applications using JavaScript, HTML and CSS. Electron apps using `contextIsolation` and `contextBridge` are affected. This is a context isolation bypass, meaning that code running in the main world context in the renderer can reach into the isolated Electron context and perform privileged actions. This issue is only exploitable if an API exposed to the main world via `contextBridge` can return an object or array that contains a javascript object which cannot be serialized, for instance, a canvas rendering context. This would normally result in an exception being thrown `Error: object could not be cloned`. The app side workaround is to ensure that such a case is not possible. Ensure all values returned from a function exposed over the context bridge are supported. This issue has been fixed in versions `25.0.0-alpha.2`, `24.0.1`, `23.2.3`, and `22.3.6`.
Severity
6 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-26 14:44 UTC
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/electron/electron/security/adv… | x_refsource_CONFIRM |
| https://www.electronjs.org/docs/latest/api/contex… | x_refsource_MISC |
Impacted products
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CVE-2023-28979 (GCVE-0-2023-28979)
Vulnerability from cvelistv5 – Published: 2023-04-17 00:00 – Updated: 2025-02-26 19:21
VLAI
EPSS
VEX
Title
Junos OS: In a 6PE scenario upon receipt of a specific IPv6 packet an integrity check fails
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in the kernel of Juniper Networks Junos OS allows an adjacent unauthenticated attacker to bypass an integrity check. In a 6PE scenario and if an additional integrity check is configured, it will fail to drop specific malformed IPv6 packets, and then these packets will be forwarded to other connected networks. This issue affects Juniper Networks Junos OS: All versions prior to 19.3R3-S7; 19.4 versions prior to 19.4R3-S9; 20.2 versions prior to 20.2R3-S7; 20.3 versions prior to 20.3R3-S5; 20.4 versions prior to 20.4R3-S4; 21.1 versions prior to 21.1R3-S3; 21.2 versions prior to 21.2R3-S2; 21.3 versions prior to 21.3R3-S1; 21.4 versions prior to 21.4R2-S1, 21.4R3; 22.1 versions prior to 22.1R2; 22.2 versions prior to 22.2R2.
Severity
4.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-12 18:26 UTC
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
unspecified , < 19.3R3-S7
(custom)
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Date Public
2023-04-12 00:00
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CVE-2023-28976 (GCVE-0-2023-28976)
Vulnerability from cvelistv5 – Published: 2023-04-17 00:00 – Updated: 2025-02-05 21:42
VLAI
EPSS
VEX
Title
Junos OS: MX Series: If a specific traffic rate goes above the DDoS threshold it will lead to an FPC crash
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on MX Series allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). If specific traffic is received on MX Series and its rate exceeds the respective DDoS protection limit the ingress PFE will crash and restart. Continued receipt of this traffic will create a sustained DoS condition. This issue affects Juniper Networks Junos OS on MX Series: All versions prior to 19.1R3-S10; 19.2 versions prior to 19.2R3-S7; 19.3 versions prior to 19.3R3-S8; 19.4 versions prior to 19.4R3-S11; 20.2 versions prior to 20.2R3-S5; 20.4 versions prior to 20.4R3-S6; 21.1 versions prior to 21.1R3-S5; 21.2 versions prior to 21.2R3-S4; 21.3 versions prior to 21.3R3; 21.4 versions prior to 21.4R3; 22.1 versions prior to 22.1R2.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-05 21:42 UTC
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
- Denial of Service (DoS)
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
unspecified , < 19.1R3-S10
(custom)
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Date Public
2023-04-12 00:00
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CVE-2023-28974 (GCVE-0-2023-28974)
Vulnerability from cvelistv5 – Published: 2023-04-17 00:00 – Updated: 2025-02-06 14:35
VLAI
EPSS
VEX
Title
Junos OS: MX Series: In a BBE scenario upon receipt of specific malformed packets from subscribers the process bbe-smgd will crash
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in the bbe-smgd of Juniper Networks Junos OS allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). In a Broadband Edge / Subscriber Management scenario on MX Series when a specifically malformed ICMP packet addressed to the device is received from a subscriber the bbe-smgd will crash, affecting the subscriber sessions that are connecting, updating, or terminating. Continued receipt of such packets will lead to a sustained DoS condition. When this issue happens the below log can be seen if the traceoptions for the processes smg-service are enabled: BBE_TRACE(TRACE_LEVEL_INFO, "%s: Dropped unsupported ICMP PKT ... This issue affects Juniper Networks Junos OS on MX Series: All versions prior to 19.4R3-S11; 20.2 versions prior to 20.2R3-S7; 20.3 versions prior to 20.3R3-S6; 20.4 versions prior to 20.4R3-S6; 21.1 versions prior to 21.1R3-S4; 21.2 versions prior to 21.2R3-S4; 21.3 versions prior to 21.3R3-S3; 21.4 versions prior to 21.4R3-S2; 22.1 versions prior to 22.1R2-S2, 22.1R3; 22.2 versions prior to 22.2R2; 22.3 versions prior to 22.3R1-S2, 22.3R2.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-06 14:35 UTC
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
- Denial of Service (DoS)
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
unspecified , < 19.4R3-S11
(custom)
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Date Public
2023-04-12 00:00
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CVE-2023-28910 (GCVE-0-2023-28910)
Vulnerability from cvelistv5 – Published: 2025-06-28 15:34 – Updated: 2025-06-30 15:09
VLAI
EPSS
VEX
Title
Disabled Abortion Flag
Summary
A specific flaw exists within the Bluetooth stack of the MIB3 infotainment system. The issue results from the disabled abortion flag eventually leading to bypassing assertion functions.
The vulnerability was originally discovered in Skoda Superb III car with MIB3 infotainment unit OEM part number 3V0035820. The list of affected MIB3 OEM part numbers is provided in the referenced resources.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-30 15:09 UTC
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://i.blackhat.com/EU-24/Presentations/EU-24-… | |
| https://pcacybersecurity.com/resources/advisory/v… | technical-description |
| https://asrg.io/security-advisories/vulnerabiliti… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Preh Car Connect GmbH (JOYNEXT GmbH) | Volkswagen MIB3 infotainment system MIB3 OI MQB |
Affected:
0 , ≤ 0304
(custom)
|
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CVE-2023-25620 (GCVE-0-2023-25620)
Vulnerability from cvelistv5 – Published: 2023-04-19 08:17 – Updated: 2025-02-05 14:58
VLAI
EPSS
VEX
Summary
A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists that
could cause denial of service of the controller when a malicious project file is loaded onto the
controller by an authenticated user.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-05 14:57 UTC
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
1 reference
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| Schneider Electric | Modicon M340 CPU (part numbers BMXP34*) |
Affected:
prior to SV3.51
|
|
| Schneider Electric | Modicon M580 CPU (part numbers BMEP* and BMEH*) |
Affected:
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|
|
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Affected:
All
|
|
| Schneider Electric | Modicon Momentum Unity M1E Processor (171CBU*) |
Affected:
All
|
|
| Schneider Electric | Modicon MC80 (BMKC80) |
Affected:
All
|
|
| Schneider Electric | Legacy Modicon Quantum (140CPU65*) |
Affected:
All
|
|
| Schneider Electric | Legacy Modicon Premium CPUs (TSXP57*) |
Affected:
All
|
Date Public
2023-04-10 18:30
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CVE-2023-25619 (GCVE-0-2023-25619)
Vulnerability from cvelistv5 – Published: 2023-04-19 07:53 – Updated: 2025-02-05 15:08
VLAI
EPSS
VEX
Summary
A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists that
could cause denial of service of the controller when communicating over the Modbus TCP
protocol.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-05 15:07 UTC
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
1 reference
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| Schneider Electric | Modicon M340 CPU (part numbers BMXP34*) |
Affected:
prior to SV3.51
|
|
| Schneider Electric | Modicon M580 CPU (part numbers BMEP* and BMEH*) |
Affected:
prior to V4.10
|
|
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Affected:
All
|
|
| Schneider Electric | Modicon Momentum Unity M1E Processor (171CBU*) |
Affected:
All
|
|
| Schneider Electric | Modicon MC80 (BMKC80) |
Affected:
All
|
|
| Schneider Electric | Legacy Modicon Quantum (140CPU65*) |
Affected:
All
|
|
| Schneider Electric | Legacy Modicon Premium CPUs (TSXP57*) |
Affected:
All
|
Date Public
2023-04-10 18:30
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Mitigation MIT-3
Requirements
Strategy: Language Selection
- Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- Choose languages with features such as exception handling that force the programmer to anticipate unusual conditions that may generate exceptions. Custom exceptions may need to be developed to handle unusual business-logic conditions. Be careful not to pass sensitive exceptions back to the user (CWE-209, CWE-248).
Mitigation
Implementation
Check the results of all functions that return a value and verify that the value is expected.
Mitigation
Implementation
If using exception handling, catch and throw specific exceptions instead of overly-general exceptions (CWE-396, CWE-397). Catch and handle exceptions as locally as possible so that exceptions do not propagate too far up the call stack (CWE-705). Avoid unchecked or uncaught exceptions where feasible (CWE-248).
Mitigation MIT-39
Implementation
- Ensure that error messages only contain minimal details that are useful to the intended audience and no one else. The messages need to strike the balance between being too cryptic (which can confuse users) or being too detailed (which may reveal more than intended). The messages should not reveal the methods that were used to determine the error. Attackers can use detailed information to refine or optimize their original attack, thereby increasing their chances of success.
- If errors must be captured in some detail, record them in log messages, but consider what could occur if the log messages can be viewed by attackers. Highly sensitive information such as passwords should never be saved to log files.
- Avoid inconsistent messaging that might accidentally tip off an attacker about internal state, such as whether a user account exists or not.
- Exposing additional information to a potential attacker in the context of an exceptional condition can help the attacker determine what attack vectors are most likely to succeed beyond DoS.
Mitigation MIT-5
Implementation
Strategy: Input Validation
- Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
- When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
- Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
Mitigation MIT-38
Architecture and Design
Implementation
If the program must fail, ensure that it fails gracefully (fails closed). There may be a temptation to simply let the program fail poorly in cases such as low memory conditions, but an attacker may be able to assert control before the software has fully exited. Alternately, an uncontrolled failure could cause cascading problems with other downstream components; for example, the program could send a signal to a downstream process so the process immediately knows that a problem has occurred and has a better chance of recovery.
Mitigation
Architecture and Design
Use system limits, which should help to prevent resource exhaustion. However, the product should still handle low resource conditions since they may still occur.
No CAPEC attack patterns related to this CWE.