CWE-754
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.
CVE-2022-43393 (GCVE-0-2022-43393)
Vulnerability from cvelistv5 – Published: 2023-01-11 00:00 – Updated: 2025-04-08 14:29
VLAI
Summary
An improper check for unusual or exceptional conditions in the HTTP request processing function of Zyxel GS1920-24v2 firmware prior to V4.70(ABMH.8)C0, which could allow an unauthenticated attacker to corrupt the contents of the memory and result in a denial-of-service (DoS) condition on a vulnerable device.
Severity
8.2 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Zyxel | GS1920-24v2 firmware |
Affected:
< V4.70(ABMH.8)C0
|
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CVE-2022-45788 (GCVE-0-2022-45788)
Vulnerability from cvelistv5 – Published: 2023-01-30 00:00 – Updated: 2025-02-05 20:07
VLAI
Summary
A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists that could cause arbitrary code execution, denial of service and loss of confidentiality & integrity when a malicious project file is loaded onto the controller. Affected Products: EcoStruxure Control Expert (All Versions), EcoStruxure Process Expert (All Versions), Modicon M340 CPU - part numbers BMXP34* (All Versions), Modicon M580 CPU - part numbers BMEP* and BMEH* (All Versions), Modicon M580 CPU Safety - part numbers BMEP58*S and BMEH58*S (All Versions), Modicon Momentum Unity M1E Processor - 171CBU* (All Versions), Modicon MC80 - BMKC80 (All Versions), Legacy Modicon Quantum - 140CPU65* and Premium CPUs - TSXP57* (All Versions)
Severity
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
1 reference
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Schneider Electric | EcoStruxure Control Expert |
Affected:
All Versions
|
|
| Schneider Electric | EcoStruxure Process Expert |
Affected:
All Versions
|
|
| Schneider Electric | Modicon M340 CPU (part numbers BMXP34*) |
Affected:
All Versions
|
|
| Schneider Electric | Modicon M580 CPU (part numbers BMEP* and BMEH*) |
Affected:
All Versions
|
|
| Schneider Electric | Modicon M580 CPU Safety (part numbers BMEP58*S and BMEH58*S) |
Affected:
All Versions
|
|
| Schneider Electric | Modicon Momentum Unity M1E Processor (171CBU*) |
Affected:
All Versions
|
|
| Schneider Electric | Modicon MC80 (BMKC80) |
Affected:
All Versions
|
|
| Schneider Electric | Legacy Modicon Quantum (140CPU65*) and Premium CPUs (TSXP57*) |
Affected:
All Versions
|
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CVE-2022-45854 (GCVE-0-2022-45854)
Vulnerability from cvelistv5 – Published: 2023-02-07 00:00 – Updated: 2024-08-03 14:24
VLAI
Summary
An improper check for unusual conditions in Zyxel NWA110AX firmware verisons prior to 6.50(ABTG.0)C0, which could allow a LAN attacker to cause a temporary denial-of-service (DoS) by sending crafted VLAN frames if the MAC address of the vulnerable AP were intercepted by the attacker.
Severity
4.3 (Medium)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Zyxel | NWA110AX firmware |
Affected:
< 6.50(ABTG.0)C0
|
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CVE-2022-47111 (GCVE-0-2022-47111)
Vulnerability from cvelistv5 – Published: 2025-04-19 00:00 – Updated: 2025-04-21 15:11
VLAI
Summary
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Severity
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
1 reference
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CVE-2022-47112 (GCVE-0-2022-47112)
Vulnerability from cvelistv5 – Published: 2025-04-19 00:00 – Updated: 2025-04-21 15:10
VLAI
Summary
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Severity
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
1 reference
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CVE-2023-22393 (GCVE-0-2023-22393)
Vulnerability from cvelistv5 – Published: 2023-01-12 00:00 – Updated: 2025-04-07 15:43
VLAI
Title
Junos OS and Junos OS Evolved: RPD crash upon receipt of BGP route with invalid next-hop
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in BGP route processing of Juniper Networks Junos OS and Junos OS Evolved allows an attacker to cause Routing Protocol Daemon (RPD) crash by sending a BGP route with invalid next-hop resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue only affects systems without import policy configured. This issue affects: Juniper Networks Junos OS 21.1 versions prior to 21.1R3-S4; 21.2 versions prior to 21.2R3-S3; 21.3 versions prior to 21.3R3-S2; 21.4 versions prior to 21.4R2-S2, 21.4R3; 22.1 versions prior to 22.1R1-S2, 22.1R2; 22.2 versions prior to 22.2R1-S1, 22.2R2. Juniper Networks Junos OS Evolved 21.4-EVO versions prior to 21.4R2-S2-EVO, 21.4R3-EVO; 22.1-EVO versions prior to 22.1R1-S2-EVO, 22.1R2-EVO; 22.2-EVO versions prior to 22.2R1-S1-EVO, 22.2R2-EVO. This issue does not affect: Juniper Networks Junos OS versions prior to 21.1R1. Juniper Networks Junos OS Evolved versions prior to 21.3R1-EVO.
Severity
7.5 (High)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://kb.juniper.net/JSA70189 |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Unaffected:
unspecified , < 21.1R1
(custom)
Affected: 21.1 , < 21.1R3-S4 (custom) Affected: 21.2 , < 21.2R3-S3 (custom) Affected: 21.3 , < 21.3R3-S2 (custom) Affected: 21.4 , < 21.4R2-S2, 21.4R3 (custom) Affected: 22.1 , < 22.1R1-S2, 22.1R2 (custom) Affected: 22.2 , < 22.2R1-S1, 22.2R2 (custom) |
|
| Juniper Networks | Junos OS Evolved |
Unaffected:
unspecified , < 21.3R1-EVO
(custom)
Affected: 21.4-EVO , < 21.4R2-S2-EVO, 21.4R3-EVO (custom) Affected: 22.1-EVO , < 22.1R1-S2-EVO, 22.1R2-EVO (custom) Affected: 22.2-EVO , < 22.2R1-S1-EVO, 22.2R2-EVO (custom) |
Date Public
2023-01-11 00:00
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CVE-2023-23626 (GCVE-0-2023-23626)
Vulnerability from cvelistv5 – Published: 2023-02-09 20:54 – Updated: 2025-03-10 21:14
VLAI
Title
Denial of service when feeding malformed size arguments in go-bitfield
Summary
go-bitfield is a simple bitfield package for the go language aiming to be more performant that the standard library. When feeding untrusted user input into the size parameter of `NewBitfield` and `FromBytes` functions, an attacker can trigger `panic`s. This happen when the `size` is a not a multiple of `8` or is negative. There were already a note in the `NewBitfield` documentation, however known users of this package are subject to this issue. Users are advised to upgrade. Users unable to upgrade should ensure that `size` is a multiple of 8 before calling `NewBitfield` or `FromBytes`.
Severity
5.9 (Medium)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/ipfs/go-bitfield/security/advi… | x_refsource_CONFIRM |
| https://github.com/ipfs/go-bitfield/commit/5e1d25… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ipfs | go-bitfield |
Affected:
< 1.1.0
|
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CVE-2023-23931 (GCVE-0-2023-23931)
Vulnerability from cvelistv5 – Published: 2023-02-07 20:54 – Updated: 2025-11-03 21:47
VLAI
Title
Cipher.update_into can corrupt memory in pyca cryptography
Summary
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. In affected versions `Cipher.update_into` would accept Python objects which implement the buffer protocol, but provide only immutable buffers. This would allow immutable objects (such as `bytes`) to be mutated, thus violating fundamental rules of Python and resulting in corrupted output. This now correctly raises an exception. This issue has been present since `update_into` was originally introduced in cryptography 1.8.
Severity
4.8 (Medium)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/pyca/cryptography/security/adv… | x_refsource_CONFIRM |
| https://github.com/pyca/cryptography/pull/8230/co… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| pyca | cryptography |
Affected:
>=1.8, < 39.0.1
|
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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
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)
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
|
|
| Schneider Electric | Modicon M580 CPU Safety (part numbers BMEP58*S and BMEH58*S) |
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-2023-25620 (GCVE-0-2023-25620)
Vulnerability from cvelistv5 – Published: 2023-04-19 08:17 – Updated: 2025-02-05 14:58
VLAI
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)
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
|
|
| Schneider Electric | Modicon M580 CPU Safety (part numbers BMEP58*S and BMEH58*S) |
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 ID: MIT-3
Phase: Requirements
Strategy: Language Selection
Description:
- 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
Phase: Implementation
Description:
- Check the results of all functions that return a value and verify that the value is expected.
Mitigation
Phase: Implementation
Description:
- 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 ID: MIT-39
Phase: Implementation
Description:
- 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 ID: MIT-5
Phase: Implementation
Strategy: Input Validation
Description:
- 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 ID: MIT-38
Phases: Architecture and Design, Implementation
Description:
- 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
Phase: Architecture and Design
Description:
- 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.