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.
685 vulnerabilities reference this CWE, most recent first.
CVE-2024-34750 (GCVE-0-2024-34750)
Vulnerability from cvelistv5 – Published: 2024-07-03 19:32 – Updated: 2025-11-03 19:29
VLAI
EPSS
VEX
Title
Apache Tomcat: HTTP/2 excess header handling DoS
Summary
Improper Handling of Exceptional Conditions, Uncontrolled Resource Consumption vulnerability in Apache Tomcat. When processing an HTTP/2 stream, Tomcat did not handle some cases of excessive HTTP headers correctly. This led to a miscounting of active HTTP/2 streams which in turn led to the use of an incorrect infinite timeout which allowed connections to remain open which should have been closed.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M20, from 10.1.0-M1 through 10.1.24, from 9.0.0-M1 through 9.0.89.
The following versions were EOL at the time the CVE was created but are
known to be affected: 8.5.0 though 8.5.100. Other EOL versions may also be affected.
Users are recommended to upgrade to version 11.0.0-M21, 10.1.25 or 9.0.90, which fixes the issue.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
Affected:
11.0.0-M1 , ≤ 11.0.0-M20
(semver)
Affected: 10.1.0-M1 , ≤ 10.1.24 (semver) Affected: 9.0.0-M1 , ≤ 9.0.89 (semver) Affected: 8.5.0 , ≤ 8.5.100 (semver) Unknown: 10.0.0-M1 , ≤ 10.0.27 (semver) |
|
| apache | tomcat |
Affected:
9.0.0-m1 , ≤ 9.0.89
(semver)
Affected: 10.1.0-m1 , ≤ 10.1.24 (semver) Affected: 11.0.0-m1 , ≤ 11.0.0-m20 (semver) cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* |
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CVE-2024-32652 (GCVE-0-2024-32652)
Vulnerability from cvelistv5 – Published: 2024-04-19 18:29 – Updated: 2024-08-02 02:13
VLAI
EPSS
VEX
Title
@hono/node-server contains Denial of Service risk when receiving Host header that cannot be parsed
Summary
The adapter @hono/node-server allows you to run your Hono application on Node.js. Prior to 1.10.1, the application hangs when receiving a Host header with a value that `@hono/node-server` can't handle well. Invalid values are those that cannot be parsed by the `URL` as a hostname such as an empty string, slashes `/`, and other strings. The version 1.10.1 includes the fix for this issue.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/honojs/node-server/security/ad… | x_refsource_CONFIRM |
| https://github.com/honojs/node-server/issues/159 | x_refsource_MISC |
| https://github.com/honojs/node-server/commit/d847… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| honojs | node-server |
Affected:
>= 1.3.0, < 1.10.1
|
|
| hono | node-server |
Affected:
1.3.0 , < 1.10.1
(custom)
cpe:2.3:a:hono:node-server:*:*:*:*:*:node.js:*:* |
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CVE-2024-32001 (GCVE-0-2024-32001)
Vulnerability from cvelistv5 – Published: 2024-04-10 22:25 – Updated: 2024-08-02 01:59
VLAI
EPSS
VEX
Title
SpiceDB: LookupSubjects may return partial results if a specific kind of relation is used
Summary
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Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/authzed/spicedb/security/advis… | x_refsource_CONFIRM |
| https://github.com/authzed/spicedb/commit/a244ed1… | x_refsource_MISC |
| https://github.com/authzed/spicedb/releases/tag/v1.30.1 | x_refsource_MISC |
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CVE-2024-32000 (GCVE-0-2024-32000)
Vulnerability from cvelistv5 – Published: 2024-04-12 20:02 – Updated: 2024-08-02 01:59
VLAI
EPSS
VEX
Title
Truncated content of messages can be leaked from matrix-appservice-irc
Summary
matrix-appservice-irc is a Node.js IRC bridge for the Matrix messaging protocol. matrix-appservice-irc before version 2.0.0 can be exploited to leak the truncated body of a message if a malicious user sends a Matrix reply to an event ID they don't have access to. As a precondition to the attack, the malicious user needs to know the event ID of the message they want to leak, as well as to be joined to both the Matrix room and the IRC channel it is bridged to. The message reply containing the leaked message content is visible to IRC channel members when this happens. matrix-appservice-irc 2.0.0 checks whether the user has permission to view an event before constructing a reply. Administrators should upgrade to this version. It's possible to limit the amount of information leaked by setting a reply template that doesn't contain the original message. See these lines `601-604` in the configuration file linked.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/matrix-org/matrix-appservice-i… | x_refsource_CONFIRM |
| https://github.com/matrix-org/matrix-appservice-i… | x_refsource_MISC |
| https://github.com/matrix-org/matrix-appservice-i… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| matrix-org | matrix-appservice-irc |
Affected:
< 2.0.0
|
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CVE-2024-30382 (GCVE-0-2024-30382)
Vulnerability from cvelistv5 – Published: 2024-04-12 15:22 – Updated: 2024-08-02 01:32
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: RPD crash when CoS-based forwarding (CBF) policy is configured
Summary
An Improper Handling of Exceptional Conditions vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a network-based, unauthenticated attacker to send a specific routing update, causing an rpd core due to memory corruption, leading to a Denial of Service (DoS).
This issue can only be triggered when the system is configured for CoS-based forwarding (CBF) with a policy map containing a cos-next-hop-map action (see below).
This issue affects:
Junos OS:
* all versions before 20.4R3-S10,
* from 21.2 before 21.2R3-S8,
* from 21.3 before 21.3R3,
* from 21.4 before 21.4R3,
* from 22.1 before 22.1R2;
Junos OS Evolved:
* all versions before 21.2R3-S8-EVO,
* from 21.3 before 21.3R3-EVO,
* from 21.4 before 21.4R3-EVO,
* from 22.1 before 22.1R2-EVO.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
- Denial of Service (DoS)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA79174 | vendor-advisory |
| https://www.first.org/cvss/calculator/4.0#CVSS:4.… | technical-description |
Impacted products
10 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 20.4R3-S10
(semver)
Affected: 21.2 , < 21.2R3-S8 (semver) Affected: 21.3 , < 21.3R3 (semver) Affected: 21.4 , < 21.4R3 (semver) Affected: 22.1 , < 22.1R2 (semver) |
|
| Juniper Networks | Junos OS Evolved |
Affected:
0 , < 21.2R3-S8-EVO
(semver)
Affected: 21.3 , < 21.3R3-EVO (semver) Affected: 21.4 , < 21.4R3-EVO (semver) Affected: 22.1 , < 22.1R2-EVO (semver) |
|
| juniper | junos_os_evolved |
Affected:
21.3 , < 21.3R3-EVO
(custom)
cpe:2.3:o:juniper:junos_os_evolved:21.3:-:*:*:*:*:*:* |
|
| juniper | junos_os_evolved |
Affected:
21.4 , < 21.4R3-EVO
(custom)
cpe:2.3:o:juniper:junos_os_evolved:21.4:-:*:*:*:*:*:* |
|
| juniper | junos_os_evolved |
Affected:
22.1 , < 22.1R2-EVO
(custom)
cpe:2.3:o:juniper:junos_os_evolved:22.1:-:*:*:*:*:*:* |
|
| juniper | junos |
Affected:
21.2 , < 21.2R3-S8
(custom)
cpe:2.3:o:juniper:junos:21.2:-:*:*:*:*:*:* |
|
| juniper | junos |
Affected:
21.3 , < 21.3R3
(custom)
cpe:2.3:o:juniper:junos:21.3:-:*:*:*:*:*:* |
|
| juniper | junos |
Affected:
21.4 , < 21.4R3
(custom)
cpe:2.3:o:juniper:junos:21.4:-:*:*:*:*:*:* |
|
| juniper | junos |
Affected:
22.1 , < 22.1R2
(custom)
cpe:2.3:o:juniper:junos:22.1:-:*:*:*:*:*:* |
|
| juniper | junos |
Affected:
0 , < 20.4R3-S10
(custom)
cpe:2.3:o:juniper:junos:-:*:*:*:*:*:*:* |
Date Public
2024-04-10 16:00
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CVE-2024-30380 (GCVE-0-2024-30380)
Vulnerability from cvelistv5 – Published: 2024-04-16 20:04 – Updated: 2024-08-02 01:32
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: l2cpd crash upon receipt of a specific TLV
Summary
An Improper Handling of Exceptional Conditions vulnerability in Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a Denial of Service (DoS), which causes the l2cpd process to crash by sending a specific TLV.
The l2cpd process is responsible for layer 2 control protocols, such as STP, RSTP, MSTP, VSTP, ERP, and LLDP. The impact of the l2cpd crash is reinitialization of STP protocols (RSTP, MSTP or VSTP), and MVRP and ERP, leading to a Denial of Service. Continued receipt and processing of this specific TLV will create a sustained Denial of Service (DoS) condition.
This issue affects:
Junos OS:
all versions before 20.4R3-S9,
from 21.2 before 21.2R3-S7,
from 21.3 before 21.3R3-S5,
from 21.4 before 21.4R3-S4,
from 22.1 before 22.1R3-S4,
from 22.2 before 22.2R3-S2,
from 22.3 before 22.3R2-S2, 22.3R3-S1,
from 22.4 before 22.4R2-S2, 22.4R3,
from 23.2 before 23.2R1-S1, 23.2R2;
Junos OS Evolved:
all versions before 21.2R3-S7,
from 21.3 before 21.3R3-S5-EVO,
from 21.4 before 21.4R3-S5-EVO,
from 22.1 before 22.1R3-S4-EVO,
from 22.2 before 22.2R3-S2-EVO,
from 22.3 before 22.3R2-S2-EVO, 22.3R3-S1-EVO,
from 22.4 before 22.4R2-S2-EVO, 22.4R3-EVO,
from 23.2 before 23.2R1-S1-EVO, 23.2R2-EVO.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
- Denial of Service (DoS)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA79171 | vendor-advisory |
| https://www.first.org/cvss/calculator/4.0#CVSS:4.… | technical-description |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 20.4R3-S9
(semver)
Affected: 21.2 , < 21.2R3-S7 (semver) Affected: 21.3 , < 21.3R3-S5 (semver) Affected: 21.4 , < 21.4R3-S4 (semver) Affected: 22.1 , < 22.1R3-S4 (semver) Affected: 22.2 , < 22.2R3-S2 (semver) Affected: 22.3 , < 22.3R2-S2, 22.3R3-S1 (semver) Affected: 22.4 , < 22.4R2-S2, 22.4R3 (semver) Affected: 23.2 , < 23.2R1-S1, 23.2R2 (semver) |
|
| Juniper Networks | Junos OS Evolved |
Affected:
0 , < 21.2R3-S7-EVO
(semver)
Affected: 21.3 , < 21.3R3-S5-EVO (semver) Affected: 21.4 , < 21.4R3-S5-EVO (semver) Affected: 22.1 , < 22.1R3-S4-EVO (semver) Affected: 22.2 , < 22.2R3-S2-EVO (semver) Affected: 22.3 , < 22.3R2-S2-EVO, 22.3R3-S1-EVO (semver) Affected: 22.4 , < 22.4R2-S2-EVO, 22.4R3-EVO (semver) Affected: 23.2 , < 23.2R1-S1-EVO, 23.2R2-EVO (semver) |
Date Public
2024-04-10 16:00
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CVE-2024-28869 (GCVE-0-2024-28869)
Vulnerability from cvelistv5 – Published: 2024-04-12 21:08 – Updated: 2024-08-02 00:56
VLAI
EPSS
VEX
Title
Possible denial of service vulnerability with Content-length header in Traefik
Summary
Traefik is an HTTP reverse proxy and load balancer. In affected versions sending a GET request to any Traefik endpoint with the "Content-length" request header results in an indefinite hang with the default configuration. This vulnerability can be exploited by attackers to induce a denial of service. This vulnerability has been addressed in version 2.11.2 and 3.0.0-rc5. Users are advised to upgrade. For affected versions, this vulnerability can be mitigated by configuring the readTimeout option.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/traefik/traefik/security/advis… | x_refsource_CONFIRM |
| https://github.com/traefik/traefik/commit/240b83b… | x_refsource_MISC |
| https://doc.traefik.io/traefik/routing/entrypoint… | x_refsource_MISC |
| https://github.com/traefik/traefik/releases/tag/v2.11.2 | x_refsource_MISC |
| https://github.com/traefik/traefik/releases/tag/v… | x_refsource_MISC |
Impacted products
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CVE-2024-23325 (GCVE-0-2024-23325)
Vulnerability from cvelistv5 – Published: 2024-02-09 22:47 – Updated: 2024-08-27 16:33
VLAI
EPSS
VEX
Title
Envoy crashes when using an address type that isn’t supported by the OS
Summary
Envoy is a high-performance edge/middle/service proxy. Envoy crashes in Proxy protocol when using an address type that isn’t supported by the OS. Envoy is susceptible to crashing on a host with IPv6 disabled and a listener config with proxy protocol enabled when it receives a request where the client presents its IPv6 address. It is valid for a client to present its IPv6 address to a target server even though the whole chain is connected via IPv4. This issue has been addressed in released 1.29.1, 1.28.1, 1.27.3, and 1.26.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/envoyproxy/envoy/security/advi… | x_refsource_CONFIRM |
| https://github.com/envoyproxy/envoy/commit/bacd31… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| envoyproxy | envoy |
Affected:
>= 1.29.0, < 1.29.1
Affected: >= 1.28.0, < 1.28.1 Affected: >= 1.27.0, < 1.27.3 Affected: < 1.26.7 |
|
| envoyproxy | envoy |
Affected:
1.29.0 , < 1.29.1
(custom)
Affected: 1.28.0 , < 1.28.1 (custom) Affected: 1.27.0 , < 1.27.3 (custom) Affected: 0 , < 1.26.7 (custom) cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* |
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CVE-2024-21907 (GCVE-0-2024-21907)
Vulnerability from cvelistv5 – Published: 2024-01-03 15:23 – Updated: 2026-07-14 22:54
VLAI
EPSS
VEX
Title
Improper Handling of Exceptional Conditions in Newtonsoft.Json
Summary
Newtonsoft.Json before version 13.0.1 is affected by a mishandling of exceptional conditions vulnerability. Crafted data that is passed to the JsonConvert.DeserializeObject method may trigger a StackOverflow exception resulting in denial of service. Depending on the usage of the library, an unauthenticated and remote attacker may be able to cause the denial of service condition.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://github.com/JamesNK/Newtonsoft.Json/issues/2457 | issue-tracking |
| https://github.com/JamesNK/Newtonsoft.Json/pull/2462 | issue-tracking |
| https://github.com/JamesNK/Newtonsoft.Json/commit… | patch |
| https://alephsecurity.com/2018/10/22/StackOverflo… | related |
| https://alephsecurity.com/vulns/aleph-2018004 | related |
| https://security.snyk.io/vuln/SNYK-DOTNET-NEWTONS… | related |
| https://github.com/advisories/GHSA-5crp-9r3c-p9vr | vendor-advisory |
| https://vulncheck.com/advisories/vc-advisory-GHSA… | third-party-advisory |
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CVE-2024-21610 (GCVE-0-2024-21610)
Vulnerability from cvelistv5 – Published: 2024-04-12 14:55 – Updated: 2025-05-19 09:22
VLAI
EPSS
VEX
Title
Junos OS: If in a scaled CoS scenario information on CoS state is gathered mgd processes get stuck
Summary
An Improper Handling of Exceptional Conditions vulnerability in the Class of Service daemon (cosd) of Juniper Networks Junos OS allows an authenticated, network-based attacker with low privileges to cause a limited Denial of Service (DoS).
In a scaled CoS scenario with 1000s of interfaces, when specific low privileged commands, received over NETCONF, SSH or telnet, are handled by cosd on behalf of mgd, the respective child management daemon (mgd) processes will get stuck. In case of (Netconf over) SSH this leads to stuck SSH sessions, so that when the connection-limit for SSH is reached, new sessions can't be established anymore. A similar behavior will be seen for telnet etc.
Stuck mgd processes can be monitored by executing the following command:
user@host> show system processes extensive | match mgd | match sbwait
This issue affects Juniper Networks Junos OS:
* All versions earlier than 20.4R3-S9;
* 21.2 versions earlier than 21.2R3-S7;
* 21.3 versions earlier than 21.3R3-S5;
* 21.4 versions earlier than 21.4R3-S5;
* 22.1 versions earlier than 22.1R3-S4;
* 22.2 versions earlier than 22.2R3-S3;
* 22.3 versions earlier than 22.3R3-S2;
* 22.4 versions earlier than 22.4R3;
* 23.2 versions earlier than 23.2R1-S2, 23.2R2.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
2 references
| URL | Tags |
|---|---|
| http://supportportal.juniper.net/JSA75751 | vendor-advisory |
| https://www.first.org/cvss/calculator/4.0#CVSS:4.… | technical-descriptionx_transferred |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 20.4R3-S9
(semver)
Affected: 21.2 , < 21.2R3-S7 (semver) Affected: 21.3 , < 21.3R3-S5 (semver) Affected: 21.4 , < 21.4R3-S5 (semver) Affected: 22.1 , < 22.1R3-S4 (semver) Affected: 22.2 , < 22.2R3-S3 (semver) Affected: 22.3 , < 22.3R3-S2 (semver) Affected: 22.4 , < 22.4R3 (semver) Affected: 23.2 , < 23.2R1-S2, 23.2R2 (semver) |
Date Public
2024-04-10 16:00
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No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.