Common Weakness Enumeration
CWE-606
AllowedUnchecked Input for Loop Condition
Abstraction: Base · Status: Draft
The product does not properly check inputs that are used for loop conditions, potentially leading to a denial of service or other consequences because of excessive looping.
79 vulnerabilities reference this CWE, most recent first.
CVE-2026-95394 (GCVE-0-2026-95394)
Vulnerability from cvelistv5 – Published: 2026-09-29 09:33 – Updated: 2026-09-29 15:49
VLAI
EPSS
VEX
Title
Unchecked Input for Loop Condition in Wireshark
Summary
Microsoft Network Monitor file parser large loop in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service
Severity
4.7 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:48 UTC
CWE
- CWE-606 - Unchecked Input for Loop Condition
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wireshark Foundation | Wireshark |
Affected:
4.6.0 , < 4.6.9
(semver)
Affected: 4.4.0 , < 4.4.19 (semver) |
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CVE-2026-93653 (GCVE-0-2026-93653)
Vulnerability from cvelistv5 – Published: 2026-09-18 14:13 – Updated: 2026-09-18 15:56
VLAI
EPSS
VEX
Title
Poppler: poppler: unbounded cpu loop in splashoutputdev::tilingpatternfill via unvalidated tiling-pattern repeat count (denial of service)
Summary
A denial of service flaw was found in Poppler's Splash backend. A crafted PDF with tiling-pattern geometry approaching the int32 boundary can cause SplashOutputDev::tilingPatternFill to compute an attacker-controlled repeat count that drives an excessively long loop in the pattern-fill scanline routine, without a corresponding memory allocation. An attacker could exploit this by supplying a malicious PDF to an application that renders it via Poppler's Splash backend, causing the rendering process to consume 100% CPU for an attacker-controlled, extended duration.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 15:55 UTC
CWE
- CWE-606 - Unchecked Input for Loop Condition
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-93653 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2537005 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat Hardened Images |
cpe:/a:redhat:hummingbird:1
|
Date Public
2026-09-18 13:58
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CVE-2026-85730 (GCVE-0-2026-85730)
Vulnerability from cvelistv5 – Published: 2026-09-04 15:21 – Updated: 2026-09-09 16:34
VLAI
EPSS
VEX
Title
smol-toml: Denial of Service via malformed TOML documents
Summary
smol-toml is a small, fast, and correct TOML parser and serializer. Prior to 1.7.1, parse() can enter an infinite loop when a value inside an array or inline table is followed by a comment with no trailing newline. In src/util.ts, skipUntil() calls indexOfNewline(), receives -1 at the end of input, and resets the cursor to the beginning of the string instead of leaving the structure scan. The parser then hangs indefinitely and can consume a service's processing capacity when an application parses attacker-controlled TOML. This issue is fixed in version 1.7.1.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 17:40 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/squirrelchat/smol-toml/securit… | x_refsource_CONFIRM |
| https://github.com/squirrelchat/smol-toml/commit/… | x_refsource_MISC |
| https://github.com/squirrelchat/smol-toml/release… | x_refsource_MISC |
| https://medium.com/@ravindu.lakmina1/seven-bytes-… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| squirrelchat | smol-toml |
Affected:
< 1.7.1
|
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CVE-2026-71439 (GCVE-0-2026-71439)
Vulnerability from cvelistv5 – Published: 2026-08-06 20:01 – Updated: 2026-08-07 17:09
VLAI
EPSS
VEX
Title
Mermaid radar diagrams are vulnerable to DoS
Summary
Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. From version 11.6.0 until 11.16.1, Mermaid Radar Diagrams allow arbitrary large values for the ticks parameter, which can cause high CPU usage and freeze the rendering webpage or JavaScript process for long periods of time, potentially until the process is killed from memory exhaustion. This issue is fixed in version 11.16.1.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-07 15:26 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/mermaid-js/mermaid/security/ad… | x_refsource_CONFIRM |
| https://github.com/mermaid-js/mermaid/pull/8022 | x_refsource_MISC |
| https://github.com/mermaid-js/mermaid/commit/59b2… | x_refsource_MISC |
| https://github.com/mermaid-js/mermaid/releases/ta… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| mermaid-js | mermaid |
Affected:
>= 11.6.0, < 11.16.1
|
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CVE-2026-68077 (GCVE-0-2026-68077)
Vulnerability from cvelistv5 – Published: 2026-08-05 05:41 – Updated: 2026-08-06 15:13
VLAI
EPSS
VEX
Title
Apache Qpid Broker-J: Unbounded disposition range handling can lead to denial of service
Summary
An authenticated attacker can craft a disposition frame with large or illegal ranges causing excessive CPU usage due to naive range handling, leading to denial of service.
This issue affects Apache Qpid Broker-J: through 10.0.1.
Users are recommended to upgrade to version 10.1.0, which fixes the issue.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-06 15:13 UTC
CWE
- CWE-606 - Unchecked Input for Loop Condition
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/gzc78gdrlw2711v8j… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Qpid Broker-J |
Affected:
0 , ≤ 10.0.1
(semver)
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CVE-2026-67554 (GCVE-0-2026-67554)
Vulnerability from cvelistv5 – Published: 2026-08-05 05:41 – Updated: 2026-08-05 15:44
VLAI
EPSS
VEX
Title
Apache Qpid Proton Dotnet: Unbounded disposition range handling can lead to denial of service
Summary
An authenticated attacker can craft a disposition frame with large or illegal ranges causing excessive CPU usage due to naive range handling, leading to denial of service.
This issue affects Apache Qpid Proton-Dotnet: through 1.0.0.
Users are recommended to upgrade to version 1.1.0, which fixes the issue.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 15:44 UTC
CWE
- CWE-606 - Unchecked Input for Loop Condition
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/5ndlowz29464ytj98… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
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| Apache Software Foundation | Apache Qpid Proton Dotnet |
Affected:
0 , ≤ 1.0.0
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CVE-2026-66276 (GCVE-0-2026-66276)
Vulnerability from cvelistv5 – Published: 2026-08-05 05:39 – Updated: 2026-08-06 15:14
VLAI
EPSS
VEX
Title
Apache Qpid Proton-J: Unbounded disposition range handling can lead to denial of service
Summary
An authenticated attacker can craft a disposition frame with large or illegal ranges causing excessive CPU usage due to naive range handling, leading to denial of service.
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Users are recommended to upgrade to version 0.35.0, which fixes the issue.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-06 15:14 UTC
CWE
- CWE-606 - Unchecked Input for Loop Condition
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/14nj0lpsqpnd3q0hw… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Qpid Proton-J |
Affected:
0 , ≤ 0.34.1
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CVE-2026-62901 (GCVE-0-2026-62901)
Vulnerability from cvelistv5 – Published: 2026-08-11 17:04 – Updated: 2026-09-29 20:20
VLAI
EPSS
VEX
Title
.NET Denial of Service Vulnerability
Summary
Unchecked input for loop condition in .NET allows an unauthorized attacker to deny service over a network.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 15:28 UTC
CWE
- CWE-606 - Unchecked Input for Loop Condition
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | .NET 10.0 |
Affected:
10.0.0 , < 10.0.11
(custom)
|
|
| Microsoft | .NET 8.0 |
Affected:
8.0.0 , < 8.0.30
(custom)
|
|
| Microsoft | .NET 9.0 |
Affected:
9.0.0 , < 9.0.19
(custom)
|
|
| Microsoft | Microsoft Visual Studio 2022 version 17.14 |
Affected:
17.14.0 , < 17.14.38
(custom)
|
|
| Microsoft | Microsoft Visual Studio 2026 version 18.8 |
Affected:
18.0 , < 18.8.3
(custom)
|
Date Public
2026-08-11 14:00
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CVE-2026-55731 (GCVE-0-2026-55731)
Vulnerability from cvelistv5 – Published: 2026-07-24 14:00 – Updated: 2026-07-24 14:54
VLAI
EPSS
VEX
Title
Loytec LINX firmware: Unchecked input for loop condition in the SNMP agent
Summary
Unchecked input for loop condition (CWE-606) in the SNMP agent in Loytec LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.16 on LINX-A64 allows an unauthenticated remote attacker to cause persistent denial of service (CPU exhaustion) via a crafted SNMP GETNEXT request with a large OID component.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-24 14:54 UTC
CWE
- CWE-606 - Unchecked input for loop condition
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.loytec.com/support/product-security/a… | vendor-advisory |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Loytec | LIP-ME20xC |
Affected:
0 , ≤ 8.4.16
(custom)
|
|
| Loytec | L-INX |
Affected:
0 , ≤ 8.4.16
(custom)
|
|
| Loytec | L-GATE |
Affected:
0 , ≤ 8.4.16
(custom)
|
|
| Loytec | L-ROC |
Affected:
0 , ≤ 8.4.16
(custom)
|
|
| Loytec | L-IOB |
Affected:
0 , ≤ 8.4.16
(custom)
|
|
| Loytec | L-DALI |
Affected:
0 , ≤ 8.4.16
(custom)
|
|
| Loytec | L-VIS |
Affected:
0 , ≤ 8.4.16
(custom)
|
|
| Loytec | L-PAD |
Affected:
0 , ≤ 8.4.16
(custom)
|
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CVE-2026-41986 (GCVE-0-2026-41986)
Vulnerability from cvelistv5 – Published: 2026-06-09 06:52 – Updated: 2026-06-09 13:05
VLAI
EPSS
VEX
Summary
Logic bypass vulnerability in the file system. Impact: Successful exploitation of this vulnerability may affect availability.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-09 13:05 UTC
CWE
- CWE-606 - Unchecked input for loop condition
Assigner
References
Impacted products
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Mitigation
Implementation
Do not use user-controlled data for loop conditions.
Mitigation
Implementation
Perform input validation.
No CAPEC attack patterns related to this CWE.