CVE-2026-46026
MediumCVSS 5.5Exploitation Probability (EPSS)
Low risk3th percentile - higher than 3% of all known CVEs
Summary
A vulnerability in the Linux kernel was identified that allowed unlimited queries by local clients. A limit of 64 queries has been introduced to prevent potential flood attacks.
Risk Assessment
An attacker could exploit this vulnerability to overload the system by sending excessive queries, potentially leading to performance degradation or service outages.
Recommendation
It is recommended to update the Linux kernel to the latest version to apply the introduced query limits. Monitoring local client activity may also help in detecting potential abuses.
Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: net: qrtr: ns: Limit the maximum number of lookups Current code does no bound checking on the number of lookups a client can perform. Though the code restricts the lookups to local clients, there is still a possibility of a malicious local client sending a flood of NEW_LOOKUP messages over the same socket. Fix this issue by limiting the maximum number of lookups to 64 globally. Since the nameserver allows only atmost one local observer, this global lookup count will ensure that the lookups stay within the limit. Note that, limit of 64 is chosen based on the current platform requirements. If requirement changes in the future, this limit can be increased.