To address this framing directly: "a bug exists" is a different truth/state of the world than "the bug is known to exist", and that's also very different from "this bug exists and an exploit is readily available". So the transmission of information about the bugs does change the state of the world, and requires action.
A bug existing or not for a person is a statement about that person's knowledge of the bug.
Is your assertion that, since you specifically didn't know about the bugs that nobody, not in Russia or anywhere else did?
Obviously if bugs are out there existing in software and you don't know about them, or the CVE system doesn't know about them, or whatever ... this does not preclude bad guys from knowing about them. In the era of agents, knowing the bug exists is equivalent to having a PoC, so the distinction completely collapses.