The critical vulnerability, identified as CVE-2026-21385, is an integer overflow in a Qualcomm graphics subcomponent that could allow local attackers to cause memory corruption.
The vulnerability affects specific versions of Junos OS Evolved on PTX Series routers, which are high-performance core and peering routers crucial for internet service providers, telecommunication services, and cloud network applications.
VulnCheck Vice President of Security Research Caitlin Condon said that vulnerability management prioritization remains a challenge among defenders, particularly as only 1% of over 40,000 of the disclosed vulnerabilities last year were exploited in the wild, according to CyberScoop.
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