Common Weakness Enumeration
CWE-755
DiscouragedImproper Handling of Exceptional Conditions
Abstraction: Class · Status: Incomplete
The product does not handle or incorrectly handles an exceptional condition.
703 vulnerabilities reference this CWE, most recent first.
CVE-2021-25662 (GCVE-0-2021-25662)
Vulnerability from cvelistv5 – Published: 2021-05-12 13:18 – Updated: 2026-06-02 19:22
VLAI
EPSS
VEX
Summary
A vulnerability has been identified in SIMATIC HMI Comfort Outdoor Panels V15 7\" & 15\" (incl. SIPLUS variants) (All versions < V15.1 Update 6), SIMATIC HMI Comfort Outdoor Panels V16 7\" & 15\" (incl. SIPLUS variants) (All versions < V16 Update 4), SIMATIC HMI Comfort Panels V15 4\" - 22\" (incl. SIPLUS variants) (All versions < V15.1 Update 6), SIMATIC HMI Comfort Panels V16 4\" - 22\" (incl. SIPLUS variants) (All versions < V16 Update 4), SIMATIC HMI KTP Mobile Panels V15 KTP400F, KTP700, KTP700F, KTP900 and KTP900F (All versions < V15.1 Update 6), SIMATIC HMI KTP Mobile Panels V16 KTP400F, KTP700, KTP700F, KTP900 and KTP900F (All versions < V16 Update 4), SIMATIC WinCC Runtime Advanced V15 (All versions < V15.1 Update 6), SIMATIC WinCC Runtime Advanced V16 (All versions < V16 Update 4). SmartVNC client fails to handle an exception properly if the program execution process is modified after sending a packet from the server, which could result in a Denial-of-Service condition.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-02 19:21 UTC
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/s… | x_refsource_MISC |
| https://us-cert.cisa.gov/ics/advisories/icsa-21-131-12 | x_refsource_MISC |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Siemens | SIMATIC HMI Comfort Outdoor Panels V15 7\" & 15\" (incl. SIPLUS variants) |
Affected:
All versions < V15.1 Update 6
|
|
| Siemens | SIMATIC HMI Comfort Outdoor Panels V16 7\" & 15\" (incl. SIPLUS variants) |
Affected:
All versions < V16 Update 4
|
|
| Siemens | SIMATIC HMI Comfort Panels V15 4\" - 22\" (incl. SIPLUS variants) |
Affected:
All versions < V15.1 Update 6
|
|
| Siemens | SIMATIC HMI Comfort Panels V16 4\" - 22\" (incl. SIPLUS variants) |
Affected:
All versions < V16 Update 4
|
|
| Siemens | SIMATIC HMI KTP Mobile Panels V15 KTP400F, KTP700, KTP700F, KTP900 and KTP900F |
Affected:
All versions < V15.1 Update 6
|
|
| Siemens | SIMATIC HMI KTP Mobile Panels V16 KTP400F, KTP700, KTP700F, KTP900 and KTP900F |
Affected:
All versions < V16 Update 4
|
|
| Siemens | SIMATIC WinCC Runtime Advanced V15 |
Affected:
All versions < V15.1 Update 6
|
|
| Siemens | SIMATIC WinCC Runtime Advanced V16 |
Affected:
All versions < V16 Update 4
|
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CVE-2021-25474 (GCVE-0-2021-25474)
Vulnerability from cvelistv5 – Published: 2021-10-06 17:08 – Updated: 2024-08-03 20:03
VLAI
EPSS
VEX
Summary
Assuming a shell privilege is gained, an improper exception handling for multi_sim_bar_show_on_qspanel value in SystemUI prior to SMR Oct-2021 Release 1 allows an attacker to cause a permanent denial of service in user device before factory reset.
Severity
4.4 (Medium)
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://security.samsungmobile.com/securityUpdate… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Samsung Mobile | Samsung Mobile Devices |
Affected:
Q(10.0), R(11.0) , < SMR Oct-2021 Release 1
(custom)
|
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CVE-2021-25473 (GCVE-0-2021-25473)
Vulnerability from cvelistv5 – Published: 2021-10-06 17:08 – Updated: 2024-08-03 20:03
VLAI
EPSS
VEX
Summary
Assuming a shell privilege is gained, an improper exception handling for multi_sim_bar_hide_by_meadia_full value in SystemUI prior to SMR Oct-2021 Release 1 allows an attacker to cause a permanent denial of service in user device before factory reset.
Severity
4.4 (Medium)
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://security.samsungmobile.com/securityUpdate… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Samsung Mobile | Samsung Mobile Devices |
Affected:
R(11.0) , < SMR Oct-2021 Release 1
(custom)
|
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CVE-2021-23886 (GCVE-0-2021-23886)
Vulnerability from cvelistv5 – Published: 2021-04-15 07:50 – Updated: 2024-08-03 19:14
VLAI
EPSS
VEX
Title
Local Denial of Service in McAfee DLP Endpoint for Windows
Summary
Denial of Service vulnerability in McAfee Data Loss Prevention (DLP) Endpoint for Windows prior to 11.6.100 allows a local, low privileged, attacker to cause a BSoD through suspending a process, modifying the processes memory and restarting it. This is triggered by the hdlphook driver reading invalid memory.
Severity
5.5 (Medium)
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://kc.mcafee.com/corporate/index?page=conten… | x_refsource_CONFIRM |
| https://kc.mcafee.com/corporate/index?page=conten… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| McAfee,LLC | McAfee Data Loss Prevention (DLP) Endpoint for Windows |
Affected:
unspecified , < 10.6.100.41
(custom)
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CVE-2021-22285 (GCVE-0-2021-22285)
Vulnerability from cvelistv5 – Published: 2022-02-04 22:29 – Updated: 2024-09-16 23:50
VLAI
EPSS
VEX
Title
SECURITY – Denial of Service Vulnerabilities in SPIET800 INFI-Net to Ethernet Transfer module and PNI800 S+ Ethernet communication interface module
Summary
Improper Handling of Exceptional Conditions, Improper Check for Unusual or Exceptional Conditions vulnerability in the ABB SPIET800 and PNI800 module that allows an attacker to cause the denial of service or make the module unresponsive.
Severity
7.5 (High)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://search.abb.com/library/Download.aspx?Docu… | x_refsource_MISC |
Impacted products
Date Public
2022-02-02 00:00
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CVE-2021-21592 (GCVE-0-2021-21592)
Vulnerability from cvelistv5 – Published: 2021-08-16 22:00 – Updated: 2024-09-17 02:37
VLAI
EPSS
VEX
Summary
Dell EMC PowerScale OneFS versions 8.2.x - 9.2.x improperly handle an exceptional condition. A remote low privileged user could potentially exploit this vulnerability, leading to unauthorized information disclosure.
Severity
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.dell.com/support/kbdoc/000190408 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Dell | PowerScale OneFS |
Affected:
8.2.x - 9.2.x
|
Date Public
2021-08-10 00:00
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CVE-2021-4105 (GCVE-0-2021-4105)
Vulnerability from cvelistv5 – Published: 2023-02-24 11:09 – Updated: 2026-05-18 12:08
VLAI
EPSS
VEX
Title
Unauthenticated Remote Code Execution on COSLAT Firewall
Summary
Improper Handling of Parameters vulnerability in BG-TEK COSLAT Firewall allows Remote Code Inclusion.
This issue affects COSLAT Firewall: from 5.24.0.R.20180630 before 5.24.0.R.20210727.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-03-11 15:46 UTC
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
3 references
| URL | Tags |
|---|---|
| http://blog.coslat.com/2021/07/onemli-kritik-gunc… | vendor-advisory |
| https://www.usom.gov.tr/bildirim/tr-23-0108 | government-resourcebroken-link |
| https://siberguvenlik.gov.tr/guvenlik-bildirimler… | government-resource |
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1 product
| Vendor | Product | Version | |
|---|---|---|---|
| BG-TEK | COSLAT Firewall |
Affected:
5.24.0.r.20180630 , < 5.24.0.r.20210727
(custom)
|
Date Public
2023-02-24 11:00
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CVE-2021-3063 (GCVE-0-2021-3063)
Vulnerability from cvelistv5 – Published: 2021-11-10 17:10 – Updated: 2024-09-16 20:26
VLAI
EPSS
VEX
Title
PAN-OS: Denial-of-Service (DoS) Vulnerability in GlobalProtect Portal and Gateway Interfaces
Summary
An improper handling of exceptional conditions vulnerability exists in Palo Alto Networks GlobalProtect portal and gateway interfaces that enables an unauthenticated network-based attacker to send specifically crafted traffic to a GlobalProtect interface that causes the service to stop responding. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.21; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14-h4; PAN-OS 9.1 versions earlier than PAN-OS 9.1.11-h3; PAN-OS 10.0 versions earlier than PAN-OS 10.0.8-h4; PAN-OS 10.1 versions earlier than PAN-OS 10.1.3. Prisma Access customers are not impacted by this issue.
Severity
7.5 (High)
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://security.paloaltonetworks.com/CVE-2021-3063 | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Palo Alto Networks | PAN-OS |
Affected:
8.1 , < 8.1.21
(custom)
Affected: 9.0 , < 9.0.14-h4 (custom) Affected: 10.0 , < 10.0.8-h4 (custom) Affected: 10.1 , < 10.1.3 (custom) Affected: 9.1 , < 9.1.11-h3 (custom) |
|
| Palo Alto Networks | Prisma Access |
Unaffected:
2.2 all
Unaffected: 2.1 all |
Date Public
2021-11-10 00:00
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CVE-2021-3053 (GCVE-0-2021-3053)
Vulnerability from cvelistv5 – Published: 2021-09-08 17:10 – Updated: 2024-09-16 16:17
VLAI
EPSS
VEX
Title
PAN-OS: Exceptional Condition Denial-of-Service (DoS)
Summary
An improper handling of exceptional conditions vulnerability exists in the Palo Alto Networks PAN-OS dataplane that enables an unauthenticated network-based attacker to send specifically crafted traffic through the firewall that causes the service to crash. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.9; PAN-OS 10.0 versions earlier than PAN-OS 10.0.5. This issue does not affect Prisma Access.
Severity
7.5 (High)
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://security.paloaltonetworks.com/CVE-2021-3053 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Palo Alto Networks | PAN-OS |
Unaffected:
10.1.*
Affected: 8.1 , < 8.1.20 (custom) Affected: 9.0 , < 9.0.14 (custom) Affected: 9.1 , < 9.1.9 (custom) Affected: 10.0 , < 10.0.5 (custom) |
Date Public
2021-09-08 00:00
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CVE-2021-0299 (GCVE-0-2021-0299)
Vulnerability from cvelistv5 – Published: 2021-10-19 18:16 – Updated: 2024-09-16 19:46
VLAI
EPSS
VEX
Title
Junos OS: Kernel crash (vmcore) upon receipt of a malformed IPv6 packet
Summary
An Improper Handling of Exceptional Conditions vulnerability in the processing of a transit or directly received malformed IPv6 packet in Juniper Networks Junos OS results in a kernel crash, causing the device to restart, leading to 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 with IPv6 configured. Devices with only IPv4 configured are not vulnerable to this issue. This issue affects Juniper Networks Junos OS: 19.4 versions prior to 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R1-S1, 20.2R2. This issue does not affect Juniper Networks Junos OS versions prior to 19.4R1.
Severity
7.5 (High)
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
- Denial of Service (DoS)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://kb.juniper.net/JSA11213 | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Unaffected:
unspecified , < 19.4R1
(custom)
Affected: 19.4 , < 19.4R3 (custom) Affected: 20.1 , < 20.1R2 (custom) Affected: 20.2 , < 20.2R1-S1, 20.2R2 (custom) |
Date Public
2021-10-13 00:00
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No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.