On December 19, 2025, MongoDB Inc. disclosed a critical new vulnerability, CVE-2025-14847, which has since been dubbed MongoBleed. This vulnerability is a high-severity unauthenticated memory leak affecting MongoDB, one of the world’s most popular document-oriented databases. While initially identified as a data exposure flaw, the severity is underscored by the fact that it allows attackers to bypass authentication entirely to extract sensitive information directly from server memory. On December 26, 2025, public proof-of-concept (PoC) exploit code was published and on December 29th, 2025 exploitation in-the-wild has been confirmed.
While CVE-2025-14847 is rated as a high-severity vulnerability, CVSS 8.7, its impact is critical. Successful exploitation allows a remote, unauthenticated attacker to “bleed” uninitialized heap memory from the database server by manipulating Zlib-compressed network packets.
Read more…
Source: Rapid7
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- Risks in Telecommunications IT
July 29, 2021
Telecommunications is just one aspect of a 200-year-old field of research in IT. In our latest report, “Islands of Telecoms: Risks in IT,” we liken this field to what seems to be separate islands that are in fact connected by a larger landmass underneath an ocean of IT. Indeed, the features of telecommunications might seem ...
- CISA announces new vulnerability disclosure policy (VDP) platform
July 29, 2021
Last fall, CISA issued the final version of Binding Operational Directive (BOD 20-01), which was issued in support of the Office of Management and Budget M-20-32, “Improving Vulnerability Identification, Management, and Remediation”. This Directive reflects CISA’s commitment to strengthening cybersecurity and resilience for federal civilian agencies by requiring agencies to establish policies enabling the public ...
- Critical Microsoft Hyper-V bug could haunt orgs for a long time
July 28, 2021
Technical details are now available for a vulnerability that affects Hyper-V, Microsoft’s native hypervisor for creating virtual machines on Windows systems and in the Azure cloud computing environment. Currently tracked as CVE-2021-28476, the security issue has a critical severity score of 9.9 out of 10. Exploiting it on unpatched machines can have a devastating impact as ...
- Threat Actors Exploit Misconfigured Apache Hadoop YARN
July 27, 2021
The misconfiguration and resulting exposure of cloud services is one of the most prevalent risks in the Linux threat landscape. We previously analyzed incidents related to this security concern, such as an exposed Docker API being abused by threat actors in the wild and exposed Redis instances that threat actors actively search. This blog post will ...
- Google announces new bug bounty platform
July 27, 2021
Google announced a new bug bounty platform as it celebrated the 10-year anniversary of its Vulnerability Rewards Program (VRP). The program led to a total of 11,055 bugs found, 2,022 rewarded researchers and nearly $30 million in total rewards. Jan Keller, technical program manager for Google’s VRP, said that in honor of the program, they are ...
- Researchers warn of unpatched Kaseya Unitrends backup vulnerabilities
July 26, 2021
Security researchers warn of three new zero-day vulnerabilities in the Kaseya Unitrends service and advise users not to expose the service to the Internet. Kaseya Unitrends is a cloud-based enterprise backup and disaster recovery solution that is offered as a stand-alone solution or as an add-on for the Kaseya VSA remote management platform. Read more… Source: Bleeping Computer