CWE-835 Loop with Unreachable Exit Condition

The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.

• Availability: DoS: Resource Consumption (CPU), DoS: Resource Consumption (Memory), DoS: Amplification — An infinite loop will cause unexpected consumption of resources, such as CPU cycles or memory. The software's operation may slow down, or cause a long time to respond.

• Automated Static Analysis: Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)

• CVE-2025-32399: Chain: library for implementing Profinet devices does not check an input for a loop condition (CWE-606), allowing an infinite loop (CWE-835) via a crafted RPC packet • CVE-2022-22224: Chain: an operating system does not properly process malformed Open Shortest Path First (OSPF) Type/Length/Value Identifiers (TLV) (CWE-703), which can cause the process to enter an infinite loop (CWE-835) • CVE-2022-25304: A Python machine communication platform did not account for receiving a malformed packet with a null size, causing the receiving function to never update the message buffer and be caught in an infinite loop. • CVE-2011-1027: Chain: off-by-one error (CWE-193) leads to infinite loop (CWE-835) using invalid hex-encoded characters. • CVE-2011-1142: Chain: self-referential values in recursive definitions lead to infinite loop. • CVE-2011-1002: NULL UDP packet is never cleared from a queue, leading to infinite loop. • CVE-2006-6499: Chain: web browser crashes due to infinite loop - "bad looping logic [that relies on] floating point math [CWE-1339] to exit the loop [CWE-835]" • CVE-2010-4476: Floating point conversion routine cycles back and forth between two different values. • CVE-2010-4645: Floating point conversion routine cycles back and forth between two different values. • CVE-2010-2534: Chain: improperly clearing a pointer in a linked list leads to infinite loop. • CVE-2013-1591: Chain: an integer overflow (CWE-190) in the image size calculation causes an infinite loop (CWE-835) which sequentially allocates buffers without limits (CWE-1325) until the stack is full. • CVE-2008-3688: Chain: A denial of service may be caused by an uninitialized variable (CWE-457) allowing an infinite loop (CWE-835) resulting from a connection to an unresponsive server.