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:
- Dragonfly 2.0: Hacking Group Infiltrated European and US Power Facilities
September 7, 2017
The notorious hacking group that has been in operation since at least 2011 has re-emerged and is still interested in targeting the United States and European companies in the energy sector. Yes, I am talking about the ‘Dragonfly,’ a well-resourced, Eastern European hacking group responsible for sophisticated cyber-espionage campaigns against the critical infrastructure of energy companies in different ...
- Microsoft Programming Error is Behind Dangerous Kernel Bug, Researchers Claim
September 7, 2017
Researchers claim a programming error in the Microsoft Windows kernel cracks the door open for malicious executables to bypass security software. The flaw, according to security firm EnSilo, has been present on previous versions of Windows dating back to Windows 2000 and can be found on Windows 10 as well. “The bug is a programming error ...
- Hackers Can Silently Control Siri, Alexa & Other Voice Assistants Using Ultrasound
September 6, 2017
What if your smartphone starts making calls, sending text messages, and browsing malicious websites on the Internet itself without even asking you? This is no imaginations, as hackers can make this possible using your smartphone’s personal assistant like Siri or Google Now. A team of security researchers from China’s Zhejiang University have discovered a clever way of ...
- Multiple Vulnerabilities Found in NVIDIA, Qualcomm, Huawei Bootloaders
September 6, 2017
Six exploitable flaws in chipsets used by Huawei, Qualcomm, MediaTek and NVIDIA were found in popular Android handsets, according to a report by University of California at Santa Barbara computer scientists. Each of the flaws exist in phones sold by Huawei, Sony and Google, and are tied to each of the phones’ bootloader firmware. The vulnerabilities ...
- Critical Flaw in Apache Struts2 Lets Hackers Take Over Web Servers
September 5, 2017
Security researchers have discovered a critical remote code execution vulnerability in the popular Apache Struts web application framework, allowing a remote attacker to run malicious code on the affected servers. Apache Struts is a free, open-source, Model-View-Controller (MVC) framework for developing web applications in the Java programming language, which supports REST, AJAX, and JSON. The vulnerability (CVE-2017-9805) is a ...
- Kurat võtku! Estonia identifies security risk in almost 750,000 ID cards
September 5, 2017
The Estonian government has discovered a security risk in its ID card system, potentially affecting almost 750,000 residents. “When notified, Estonian authorities immediately took precautionary measures, including closing the public key database, in order to minimise the risk while the situation can be fully assessed and a solution developed,” according to an email by Kaspar Korjus, ...