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:
- Cisco ASA vulnerability actively exploited after exploit released
June 27, 2021
Hackers are scanning for and actively exploiting a vulnerability in Cisco ASA devices after a PoC exploit was published on Twitter. This Cisco ASA vulnerability is cross-site scripting (XSS) vulnerability that is tracked as CVE-2020-3580. Cisco first disclosed the vulnerability and issued a fix in October 2020. However, the initial patch for CVE-2020-3580 was incomplete, and a ...
- 30M Dell Devices at Risk for Remote BIOS Attacks, RCE
June 24, 2021
A high-severity series of four vulnerabilities can allow remote adversaries to gain arbitrary code execution in the pre-boot environment on Dell devices, researchers said. They affect an estimated 30 million individual Dell endpoints worldwide. According to an analysis from Eclypsium, the bugs affect 129 models of laptops, tablet and desktops, including enterprise and consumer devices, that ...
- Critical Palo Alto Cyber-Defense Bug Allows Remote ‘War Room’ Access
June 23, 2021
A critical security bug in Palo Alto Networks’ Cortex XSOAR could allow remote attackers to run commands and automations in the Cortex XSOAR War Room and to take other actions on the platform, without having to log in. Found internally by Palo Alto, the bug (CVE-2021-3044) is an improper-authorization vulnerability that “enables a remote unauthenticated attacker ...
- Analyzing SonicWall’s Unsuccessful Fix for CVE-2020-5135
June 22, 2021
By Craig Young, a computer security researcher with Tripwire’s Vulnerability and Exposures Research Team Back in September 2020, I configured a SonicWall network security appliance to act as a VPN gateway between physical devices in my home lab and cloud resources on my Azure account. As I usually do with new devices on my network, I ...
- Email Bug Allows Message Snooping, Credential Theft
June 22, 2021
Researchers warn hackers can snoop on email messages by exploiting a bug in the underlying technology used by the majority of email servers that run the Internet Message Access Protocol, commonly referred to as IMAP. The bug, first reported in August 2020 and patched Monday, is tied to the email server software Dovecot, used by ...
- Black Kingdom ransomware
June 17, 2021
Black Kingdom ransomware appeared on the scene back in 2019, but we observed some activity again in 2021. The ransomware was used by an unknown adversary for exploiting a Microsoft Exchange vulnerability (CVE-2021-27065). The complexity and sophistication of the Black Kingdom family cannot bear a comparison with other Ransomware-as-a-Service (RaaS) or Big Game Hunting (BGH) families. ...