CVE-2025-40833
HighCVSS 7.5Exploitation Probability (EPSS)
Low risk25th percentile - higher than 25% of all known CVEs
Summary
A null pointer dereference vulnerability in network devices when processing specially crafted IPv4 requests. An attacker can cause a denial of service condition, requiring a manual restart to recover.
Risk Assessment
An attacker can remotely crash the device, disrupting network services and requiring physical or remote intervention for recovery.
Recommendation
Apply the vendor patch or implement IPv4 traffic filtering rules to block malicious packets. Monitor devices for unexpected reboots.
Related vulnerabilities
- CVE-2026-8778Critical
The MIPL Grouped Checkout Fields for WooCommerce plugin for WordPress (versions up to and including 1.2.1) is vulnerable to arbitrary file uploads due to missing file type validation in the `mipl_wc_upload_file` function. This allows unauthenticated attackers to upload arbitrary files to the server, potentially enabling remote code execution.
- CVE-2026-82107Critical
IBM DataStage on Cloud Pak for Data 5.4.0.0 contains an improper authentication flaw that allows a remote authenticated attacker to obtain sensitive information and bypass security restrictions.
- CVE-2026-82100Critical
IBM DataStage on Cloud Pak for Data 5.4.0.0 is vulnerable to a path traversal issue that allows a remote authenticated attacker to cause a denial of service.
- CVE-2026-81204Critical
IBM Langflow OSS versions 1.0.0 through 1.11.5 allow a remote attacker to execute arbitrary code due to code injection during graph construction.
- CVE-2026-80424Critical
IBM DataStage on Cloud Pak for Data 5.4.0.0 allows a remote authenticated attacker to create arbitrary files due to path traversal during archive extraction.
- CVE-2026-79724Critical
IBM Langflow OSS versions 1.0.0 through 1.11.5 allow a remote attacker to execute arbitrary OS commands due to improper neutralization of special elements used in an OS command.
- CVE-2026-78573Critical
IBM ContextForge MCP Gateway versions 1.0.0 through 1.0.7 allow a remote attacker to gain administrative access due to the use of default credentials.
- CVE-2026-45764Critical
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, a protocol change while processing HTTP/2 traffic could lead to type confusion, causing Suricata to crash and resulting in denial of service.
- CVE-2026-19646Critical
IBM Common Licensing Agent 9.0, 9.0.0.1, 9.0.0.2 and ART 9.0, 9.0.0.1, 9.0.0.2 allow a remote attacker to redirect users to an arbitrary domain due to improper validation of the HTTP Host header.
- CVE-2026-89094Critical
Forgejo before 16.0.4 allows remote code execution via a crafted template repository because template expansion on files in .forgejo/template is mishandled.
Original NVD description (English source)
The affected devices contain a null pointer dereference vulnerability while processing specially crafted IPv4 requests. This could allow an attacker to cause denial of service condition. A manual restart is required to recover the system.