Common Weakness Enumeration
CWE-835
AllowedLoop with Unreachable Exit Condition ('Infinite Loop')
Abstraction: Base · Status: Incomplete
The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.
1052 vulnerabilities reference this CWE, most recent first.
CVE-2025-20136 (GCVE-0-2025-20136)
Vulnerability from cvelistv5 – Published: 2025-08-14 16:28 – Updated: 2025-08-14 19:21
VLAI
EPSS
VEX
Title
Cisco Adaptive Security Appliance and Firepower Threat Defense Software Network Address Translation DNS Inspection Denial of Service Vulnerability
Summary
A vulnerability in the function that performs IPv4 and IPv6 Network Address Translation (NAT) DNS inspection for Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition.
This vulnerability is due to an infinite loop condition that occurs when a Cisco Secure ASA or Cisco Secure FTD device processes DNS packets with DNS inspection enabled and the device is configured for NAT44, NAT64, or NAT46. An attacker could exploit this vulnerability by sending crafted DNS packets that match a static NAT rule with DNS inspection enabled through an affected device. A successful exploit could allow the attacker to create an infinite loop and cause the device to reload, resulting in a DoS condition.
Severity
8.6 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Adaptive Security Appliance (ASA) Software |
Affected:
9.12.3
Affected: 9.8.3 Affected: 9.12.1 Affected: 9.8.1 Affected: 9.12.2 Affected: 9.8.2.45 Affected: 9.8.2 Affected: 9.8.4 Affected: 9.14.1 Affected: 9.12.4 Affected: 9.8.2.26 Affected: 9.8.2.24 Affected: 9.8.2.15 Affected: 9.8.2.14 Affected: 9.8.2.35 Affected: 9.8.2.20 Affected: 9.8.2.8 Affected: 9.8.2.17 Affected: 9.8.2.28 Affected: 9.8.2.33 Affected: 9.8.2.38 Affected: 9.8.4.25 Affected: 9.12.3.2 Affected: 9.12.3.7 Affected: 9.8.3.18 Affected: 9.8.3.14 Affected: 9.8.4.15 Affected: 9.8.4.8 Affected: 9.8.1.7 Affected: 9.8.3.29 Affected: 9.14.1.10 Affected: 9.12.2.5 Affected: 9.8.4.22 Affected: 9.12.3.12 Affected: 9.8.4.7 Affected: 9.8.4.17 Affected: 9.8.3.16 Affected: 9.8.4.20 Affected: 9.8.3.11 Affected: 9.12.1.3 Affected: 9.8.4.3 Affected: 9.12.2.4 Affected: 9.8.4.12 Affected: 9.12.1.2 Affected: 9.8.3.26 Affected: 9.8.1.5 Affected: 9.12.2.9 Affected: 9.12.3.9 Affected: 9.8.3.21 Affected: 9.8.4.10 Affected: 9.12.2.1 Affected: 9.12.4.2 Affected: 9.14.1.6 Affected: 9.8.3.8 Affected: 9.14.1.15 Affected: 9.14.1.19 Affected: 9.8.4.26 Affected: 9.12.4.4 Affected: 9.14.1.30 Affected: 9.8.4.29 Affected: 9.12.4.7 Affected: 9.14.2 Affected: 9.12.4.8 Affected: 9.8.4.32 Affected: 9.12.4.10 Affected: 9.14.2.4 Affected: 9.14.2.8 Affected: 9.12.4.13 Affected: 9.8.4.33 Affected: 9.14.2.13 Affected: 9.8.4.34 Affected: 9.12.4.18 Affected: 9.8.4.35 Affected: 9.14.2.15 Affected: 9.12.4.24 Affected: 9.16.1 Affected: 9.8.4.39 Affected: 9.14.3 Affected: 9.12.4.26 Affected: 9.16.1.28 Affected: 9.14.3.1 Affected: 9.12.4.29 Affected: 9.14.3.9 Affected: 9.16.2 Affected: 9.12.4.30 Affected: 9.16.2.3 Affected: 9.8.4.40 Affected: 9.14.3.11 Affected: 9.12.4.35 Affected: 9.8.4.41 Affected: 9.15.1.1 Affected: 9.14.3.13 Affected: 9.16.2.7 Affected: 9.12.4.37 Affected: 9.14.3.15 Affected: 9.17.1 Affected: 9.16.2.11 Affected: 9.14.3.18 Affected: 9.16.2.13 Affected: 9.12.4.39 Affected: 9.12.4.38 Affected: 9.8.4.43 Affected: 9.14.4 Affected: 9.16.2.14 Affected: 9.17.1.7 Affected: 9.12.4.40 Affected: 9.16.3.3 Affected: 9.14.4.6 Affected: 9.16.3 Affected: 9.16.3.14 Affected: 9.17.1.9 Affected: 9.14.4.7 Affected: 9.12.4.41 Affected: 9.17.1.10 Affected: 9.8.4.44 Affected: 9.18.1 Affected: 9.12.4.47 Affected: 9.14.4.12 Affected: 9.16.3.15 Affected: 9.18.1.3 Affected: 9.17.1.11 Affected: 9.12.4.48 Affected: 9.14.4.13 Affected: 9.18.2 Affected: 9.16.3.19 Affected: 9.17.1.13 Affected: 9.12.4.50 Affected: 9.14.4.14 Affected: 9.17.1.15 Affected: 9.8.4.45 Affected: 9.12.4.52 Affected: 9.14.4.15 Affected: 9.16.3.23 Affected: 9.18.2.5 Affected: 9.16.4 Affected: 9.12.4.54 Affected: 9.14.4.17 Affected: 9.8.4.46 Affected: 9.17.1.20 Affected: 9.18.2.7 Affected: 9.19.1 Affected: 9.16.4.9 Affected: 9.12.4.55 Affected: 9.18.2.8 Affected: 9.14.4.22 Affected: 9.16.4.14 Affected: 9.8.4.48 Affected: 9.18.3 Affected: 9.19.1.5 Affected: 9.14.4.23 Affected: 9.12.4.56 Affected: 9.16.4.18 Affected: 9.17.1.30 Affected: 9.19.1.9 Affected: 9.18.3.39 Affected: 9.16.4.19 Affected: 9.12.4.58 Affected: 9.19.1.12 Affected: 9.18.3.46 Affected: 9.16.4.27 Affected: 9.19.1.18 Affected: 9.18.3.53 Affected: 9.18.3.55 Affected: 9.16.4.38 Affected: 9.17.1.33 Affected: 9.12.4.62 Affected: 9.16.4.39 Affected: 9.18.3.56 Affected: 9.20.1 Affected: 9.16.4.42 Affected: 9.19.1.22 Affected: 9.18.4 Affected: 9.20.1.5 Affected: 9.18.4.5 Affected: 9.19.1.24 Affected: 9.16.4.48 Affected: 9.18.4.8 Affected: 9.20.2 Affected: 9.19.1.27 Affected: 9.12.4.65 Affected: 9.16.4.55 Affected: 9.18.4.22 Affected: 9.20.2.10 Affected: 9.16.4.57 Affected: 9.19.1.28 Affected: 9.17.1.39 Affected: 9.12.4.67 Affected: 9.14.4.24 Affected: 9.18.4.24 Affected: 9.20.2.21 Affected: 9.16.4.61 Affected: 9.19.1.31 Affected: 9.18.4.29 Affected: 9.20.2.22 Affected: 9.16.4.62 Affected: 9.18.4.34 Affected: 9.20.3 Affected: 9.16.4.67 Affected: 9.16.4.70 Affected: 9.18.4.40 Affected: 9.22.1.1 Affected: 9.16.4.71 Affected: 9.20.3.4 Affected: 9.18.4.47 Affected: 9.17.1.45 Affected: 9.19.1.37 Affected: 9.17.1.46 Affected: 9.19.1.38 Affected: 9.22.1.2 |
|
| Cisco | Cisco Firepower Threat Defense Software |
Affected:
6.2.3.14
Affected: 6.4.0.1 Affected: 6.2.3.7 Affected: 6.2.3 Affected: 6.4.0.2 Affected: 6.2.3.9 Affected: 6.2.3.1 Affected: 6.2.3.2 Affected: 6.4.0.5 Affected: 6.2.3.10 Affected: 6.4.0 Affected: 6.4.0.3 Affected: 6.2.3.6 Affected: 6.4.0.4 Affected: 6.2.3.15 Affected: 6.2.3.5 Affected: 6.2.3.4 Affected: 6.2.3.3 Affected: 6.2.3.8 Affected: 6.4.0.6 Affected: 6.2.3.11 Affected: 6.2.3.12 Affected: 6.2.3.13 Affected: 6.4.0.7 Affected: 6.4.0.8 Affected: 6.6.0 Affected: 6.4.0.9 Affected: 6.2.3.16 Affected: 6.6.0.1 Affected: 6.6.1 Affected: 6.4.0.10 Affected: 6.4.0.11 Affected: 6.6.3 Affected: 6.6.4 Affected: 6.4.0.12 Affected: 7.0.0 Affected: 6.2.3.17 Affected: 7.0.0.1 Affected: 6.6.5 Affected: 7.0.1 Affected: 7.1.0 Affected: 6.4.0.13 Affected: 6.6.5.1 Affected: 6.2.3.18 Affected: 7.0.1.1 Affected: 6.4.0.14 Affected: 7.1.0.1 Affected: 6.6.5.2 Affected: 7.0.2 Affected: 6.4.0.15 Affected: 7.2.0 Affected: 7.0.2.1 Affected: 7.0.3 Affected: 6.6.7 Affected: 7.1.0.2 Affected: 7.2.0.1 Affected: 7.0.4 Affected: 7.2.1 Affected: 7.0.5 Affected: 6.4.0.16 Affected: 7.3.0 Affected: 7.2.2 Affected: 7.2.3 Affected: 6.6.7.1 Affected: 7.3.1 Affected: 7.1.0.3 Affected: 7.2.4 Affected: 7.0.6 Affected: 7.2.5 Affected: 7.2.4.1 Affected: 7.3.1.1 Affected: 7.4.0 Affected: 6.4.0.17 Affected: 7.0.6.1 Affected: 7.2.5.1 Affected: 7.4.1 Affected: 7.2.6 Affected: 7.0.6.2 Affected: 7.4.1.1 Affected: 6.6.7.2 Affected: 6.4.0.18 Affected: 7.2.7 Affected: 7.2.5.2 Affected: 7.3.1.2 Affected: 7.2.8 Affected: 7.6.0 Affected: 7.4.2 Affected: 7.2.8.1 Affected: 7.0.6.3 Affected: 7.4.2.1 Affected: 7.2.9 |
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"version": "9.19.1.9"
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{
"status": "affected",
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"status": "affected",
"version": "9.18.3.46"
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CVE-2025-13946 (GCVE-0-2025-13946)
Vulnerability from cvelistv5 – Published: 2025-12-03 08:04 – Updated: 2026-03-27 13:56
VLAI
EPSS
VEX
Title
Loop with Unreachable Exit Condition ('Infinite Loop') in Wireshark
Summary
MEGACO dissector infinite loop in Wireshark 4.6.0 to 4.6.1 and 4.4.0 to 4.4.11 allows denial of service
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.wireshark.org/security/wnpa-sec-2025-… | |
| https://gitlab.com/wireshark/wireshark/-/issues/20884 | issue-trackingpermissions-required |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wireshark Foundation | Wireshark |
Affected:
4.6.0 , < 4.6.1
(semver)
Affected: 4.4.0 , < 4.4.11 (semver) |
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CVE-2025-13335 (GCVE-0-2025-13335)
Vulnerability from cvelistv5 – Published: 2026-01-22 10:04 – Updated: 2026-01-22 14:12
VLAI
EPSS
VEX
Title
Loop with Unreachable Exit Condition ('Infinite Loop') in GitLab
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.1 before 18.6.4, 18.7 before 18.7.2, and 18.8 before 18.8.2 that under certain circumstances could have allowed an authenticated user to create a denial of service condition by configuring malformed Wiki documents that bypass cycle detection.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://gitlab.com/gitlab-org/gitlab/-/issues/581060 | issue-trackingpermissions-required |
| https://hackerone.com/reports/3418023 | technical-descriptionexploitpermissions-required |
| https://about.gitlab.com/releases/2026/01/21/patc… |
Impacted products
Credits
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CVE-2025-11626 (GCVE-0-2025-11626)
Vulnerability from cvelistv5 – Published: 2025-10-10 22:33 – Updated: 2026-03-27 13:56
VLAI
EPSS
VEX
Title
Loop with Unreachable Exit Condition ('Infinite Loop') in Wireshark
Summary
MONGO dissector infinite loop in Wireshark 4.4.0 to 4.4.9 and 4.2.0 to 4.2.13 allows denial of service
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.wireshark.org/security/wnpa-sec-2025-… | |
| https://gitlab.com/wireshark/wireshark/-/issues/20724 | issue-trackingpermissions-required |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wireshark Foundation | Wireshark |
Affected:
4.4.0 , < 4.4.10
(semver)
Affected: 4.2.0 , < 4.2.14 (semver) |
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CVE-2025-8194 (GCVE-0-2025-8194)
Vulnerability from cvelistv5 – Published: 2025-07-28 18:42 – Updated: 2026-04-21 20:17
VLAI
EPSS
VEX
Title
Tarfile infinite loop during parsing with negative member offset
Summary
There is a defect in the CPython “tarfile” module affecting the “TarFile” extraction and entry enumeration APIs. The tar implementation would process tar archives with negative offsets without error, resulting in an infinite loop and deadlock during the parsing of maliciously crafted tar archives.
This vulnerability can be mitigated by including the following patch after importing the “tarfile” module: https://gist.github.com/sethmlarson/1716ac5b82b73dbcbf23ad2eff8b33e1
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
13 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Python Software Foundation | CPython |
Affected:
0 , < 3.10.19
(python)
Affected: 3.11.0 , < 3.11.14 (python) Affected: 3.12.0 , < 3.12.12 (python) Affected: 3.13.0 , < 3.13.6 (python) Affected: 3.14.0a1 , < 3.14.0rc2 (python) |
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CVE-2025-7054 (GCVE-0-2025-7054)
Vulnerability from cvelistv5 – Published: 2025-08-07 15:19 – Updated: 2025-08-07 15:52
VLAI
EPSS
VEX
Title
Infinite loop triggered by connection ID retirement
Summary
Cloudflare quiche was discovered to be vulnerable to an infinite loop when sending packets containing RETIRE_CONNECTION_ID frames.
QUIC connections possess a set of connection identifiers (IDs); see Section 5.1 of RFC 9000 https://datatracker.ietf.org/doc/html/rfc9000#section-5.1 . Once the QUIC handshake completes, a local endpoint is responsible for issuing and retiring Connection IDs that are used by the remote peer to populate the Destination Connection ID field in packets sent from remote to local. Each Connection ID has a sequence number to ensure synchronization between peers.
An unauthenticated remote attacker can exploit this vulnerability by first completing a handshake and then sending a specially-crafted set of frames that trigger a connection ID retirement in the victim. When the victim attempts to send a packet containing RETIRE_CONNECTION_ID frames, Section 19.16 of RFC 9000 https://datatracker.ietf.org/doc/html/rfc9000#section-19.6 requires that the sequence number of the retired connection ID must not be the same as the sequence number of the connection ID used by the packet. In other words, a packet cannot contain a frame that retires itself. In scenarios such as path migration, it is possible for there to be multiple active paths with different active connection IDs that could be used to retire each other. The exploit triggered an unintentional behaviour of a quiche design feature that supports retirement across paths while maintaining full connection ID synchronization, leading to an infinite loop.This issue affects quiche: from 0.15.0 before 0.24.5.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cloudflare | quiche |
Affected:
0.15.0 , < 0.24.5
(semver)
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CVE-2025-3857 (GCVE-0-2025-3857)
Vulnerability from cvelistv5 – Published: 2025-04-21 15:13 – Updated: 2025-10-14 18:18
VLAI
EPSS
VEX
Title
Infinite loop condition in Amazon.IonDotnet
Summary
When reading binary Ion data through Amazon.IonDotnet using the RawBinaryReader class, Amazon.IonDotnet does not check the number of bytes read from the underlying stream while deserializing the binary format. If the Ion data is malformed or truncated, this triggers an infinite loop condition that could potentially result in a denial of service. Users should upgrade to Amazon.IonDotnet version 1.3.1 and ensure any forked or derivative code is patched to incorporate the new fixes.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://aws.amazon.com/security/security-bulletin… | vendor-advisory |
| https://github.com/amazon-ion/ion-dotnet/security… | third-party-advisory |
| https://github.com/amazon-ion/ion-dotnet/releases… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Amazon | Amazon Ion Dotnet |
Affected:
0 , < 1.3.1
(semver)
|
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CVE-2025-2962 (GCVE-0-2025-2962)
Vulnerability from cvelistv5 – Published: 2025-06-24 05:32 – Updated: 2025-06-24 14:22
VLAI
EPSS
VEX
Title
Infinite loop in dns_copy_qname
Summary
A denial-of-service issue in the dns implemenation could cause an infinite loop.
Severity
8.2 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| zephyrproject-rtos | Zephyr |
Affected:
* , ≤ 4.1.0
(git)
Affected: * , ≤ 3.7.1 (git) |
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CVE-2025-2838 (GCVE-0-2025-2838)
Vulnerability from cvelistv5 – Published: 2025-03-26 21:16 – Updated: 2025-03-27 14:52
VLAI
EPSS
VEX
Title
Silicon Labs Gecko OS DNS Response Processing Infinite Loop Denial-of-Service Vulnerability
Summary
Silicon Labs Gecko OS DNS Response Processing Infinite Loop Denial-of-Service Vulnerability. This vulnerability allows network-adjacent attackers to create a denial-of-service condition on affected installations of Silicon Labs Gecko OS. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the processing of DNS responses. The issue results from a logic error that can lead to an infinite loop. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-23392.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_research-advisory |
| https://community.silabs.com/a45Vm0000000Atp | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Silicon Labs | Gecko OS |
Affected:
1.0.46
|
Date Public
2024-06-21 23:58
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CVE-2025-1695 (GCVE-0-2025-1695)
Vulnerability from cvelistv5 – Published: 2025-03-04 00:54 – Updated: 2025-03-04 16:33
VLAI
EPSS
VEX
Title
NGINX Unit Java Vulnerability
Summary
In NGINX Unit before version 1.34.2 with the Java Language Module in use, undisclosed requests can lead to an infinite loop and cause an increase in CPU resource utilization. This vulnerability allows a remote attacker to cause a degradation that can lead to a limited denial-of-service (DoS). There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://my.f5.com/manage/s/article/K000149959 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| F5 | NGINX Unit |
Affected:
1.11.0 , < 1.34.2
(custom)
Affected: * , < d7afeb2b94f1cd72ed02403609e5484f9514e5eb (git) |
Date Public
2025-03-03 15:00
Credits
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No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.