Tag Archives: HighSeverity

The maker of Passwordstate, an enterprise-grade password manager for storing companies’ most privileged credentials, is urging them to promptly install an update fixing a high-severity vulnerability that hackers can exploit to gain administrative access to their vaults. The authentication bypass allows hackers to create a URL that accesses an emergency access page for Passwordstate. From there, an attacker could pivot …

BI.ZONE said the Paper Werewolf delivered the exploits in July and August through archives attached to emails impersonating employees of the All-Russian Research Institute. The ultimate goal was to install malware that gave Paper Werewolf access to infected systems. While the discoveries by ESET and BI.ZONE were independent of each other, it’s unknown if the groups exploiting the vulnerabilities are …

Over 29,000 Exchange servers exposed online remain unpatched against a high-severity vulnerability that can let attackers move laterally in Microsoft cloud environments, potentially leading to complete domain compromise. The security flaw (tracked as CVE-2025-53786) helps threat actors who gain administrative access to on-premises Exchange servers to escalate privileges within the organization’s connected cloud environment by forging or manipulating trusted tokens …

Microsoft has warned customers to mitigate a high-severity vulnerability in Exchange Server hybrid deployments that could allow attackers to escalate privileges in Exchange Online cloud environments undetected. Exchange hybrid configurations connect on-premises Exchange servers to Exchange Online (part of Microsoft 365), allowing for seamless integration of email and calendar features between on-premises and cloud mailboxes, including shared calendars, global address …

Note: This Alert may be updated to reflect new guidance issued by CISA or other parties.  CISA is aware of the newly disclosed high-severity vulnerability, CVE-2025-53786, that allows a cyber threat actor with administrative access to an on-premise Microsoft Exchange server to escalate privileges by exploiting vulnerable hybrid-joined configurations. This vulnerability, if not addressed, could impact the identity integrity of an …