JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 153.
Description
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 153.
Remediation
Update Mozilla Firefox to the latest version. Monitor for exploitation attempts and review access logs.
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VENDOR: MikroTik
PRODUCT: RouterOS
AFFECTED_VERSIONS: All versions
CONFIDENCE: high
MISSING: patch
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Description Summary:
MikroTik RouterOS API authentication handling is vulnerable to excessive login attempts, which may lead to unauthorized system access or service degradation.
Executive Summary:
MikroTik RouterOS is vulnerable to an authentication bypass or brute-force risk due to the lack of effective rate limiting on its API interface.
Vulnerability Details
CVE-ID: CVE-2026-16347
Affected Software: MikroTik RouterOS
Affected Versions: All versions
Vulnerability: This vulnerability (CWE-307) involves the improper restriction of excessive authentication attempts in the RouterOS API. It allows an unauthenticated attacker to perform repeated login attempts against the management interface.
Business Impact
The lack of rate limiting on an authentication interface significantly increases the risk of successful brute-force attacks against administrative credentials. Given the 8.8 CVSS score, this presents a high risk to network integrity and device control, potentially leading to a complete compromise of the router.
Remediation Plan
Immediate Action: Review the vendor advisory for configuration-based mitigations or available firmware updates to enforce API rate limiting.
Proactive Monitoring: Monitor API authentication logs for high volumes of failed login attempts from single or distributed IP addresses.
Compensating Controls: Restrict access to the RouterOS API to trusted management subnets only via firewall rules to minimize exposure.
Exploitation Status
Public Exploit Available: No confirmed public exploit available.
Analyst Notes: As of July 29, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The vulnerability is highly exploitable due to the lack of built-in safeguards in the API architecture.
Analyst Recommendation
Given the critical role of network routers in infrastructure security, administrators should treat this vulnerability with high urgency. Restricting access to the API and applying vendor-provided security patches are essential steps to protect the device.