o3 Capital A.I CyberSecurity Scoring
09/03/2026
Access Monitoring Plan
Access Monitoring Plan
No incidents recorded for o3 Capital in 2026.
No incidents recorded for o3 Capital in 2026.
No incidents recorded for o3 Capital in 2026.
Investment Banking
RBC Capital Markets is recognized by the most significant corporations, institutional investors, asset managers, private equity firms, and governments around the globe as an innovative, trusted partner with an in-depth expertise in capital markets, banking, and finance. We are well-established in the largest, most mature capital markets across North America, Europe, and the Asia-Pacific region, which collectively encompass more than 75% of global investment banking activity each year. We are part of Royal Bank of Canada (RBC), a leading, diversified provider of financial services and one of the strongest banks globally. Founded in 1864, RBC is the 10th largest bank worldwide and the 5th in North America, as measured by market capitalization. RBC is among a small group of highly rated global banks and is recognized time and time again for its financial strength, market leadership and philanthropic work. For information on our legal terms of use visit https://www.rbccm.com/en/policies-disclaimers.page http://www.rbc.com/legal/
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The CONS_HISTORY ioctl handler did not adequately validate the requested history size. A large value caused an integer overflow in the buffer size calculation, resulting in a heap allocation smaller than expected. Subsequent initialization of the buffer wrote beyond the end of the allocation. An unprivileged local user with access to a vt(4) device can trigger an out-of-bounds write in the kernel, potentially escalating privileges.
The ELF image activator cleared per-process ASLR preference flags for setuid binaries after the code that computes the PIE base address, rather than before. As a result, a user-requested ASLR disable was still in effect at the point where the base address was chosen. An unprivileged local user can disable ASLR for a setuid PIE binary by calling procctl(2) before execve(2). This makes exploitation of any separate memory corruption vulnerability in that binary significantly easier.
Second, the audio buffer backing a mapping could be freed when the device was closed even though the mapping remained valid. The freed memory could then be reused elsewhere while still accessible through the stale mapping. The /dev/dsp device nodes are world-accessible by default. On a system with an audio device, either issue allows an unprivileged local user to read and write kernel memory, which can be used to escalate privileges, potentially gaining full control of the affected system. At a minimum, an attacker can crash the kernel, resulting in a Denial of Service (DoS).
The Linuxulator determined whether a binary was set-user-ID or set-group-ID by checking the P_SUGID process flag. During execve(2), this flag is not yet set at the point where the auxiliary vector is constructed, so AT_SECURE was incorrectly set to zero for set-user-ID and set-group-ID executables. An unprivileged local user can inject a shared library via LD_PRELOAD into a set-user-ID or set-group-ID Linux binary, gaining the privileges of that binary.
The kernel handler for IPV6_MSFILTER dropped a serializing lock in order to copy the source-filter list from userspace, then reacquired the lock. During this window another thread could free the multicast filter structure, leaving the handler with a stale pointer to freed memory. An unprivileged local user can exploit this use-after-free to escalate privileges.
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