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There are several methods of classifying exploits. The most common is by how the exploit contacts the vulnerable software. A remote exploit works over a network and exploits the security vulnerability without any prior access to the vulnerable system. A local exploit requires prior access to the vulnerable system and usually increases the privileges of the person running the exploit past those granted by the system administrator. Exploits against client applications also exist, usually consisting of modified servers that send an exploit if accessed with a client application. Exploits against client applications may also require some interaction with the user and thus may be used in combination with the social engineering method. Another classification is by the action against the vulnerable system; unauthorized data access, arbitrary code execution, and denial of service are examples. Many exploits are designed to provide superuser-level access to a computer system. However, it is also possible to use several exploits, first to gain low-level access, then to escalate privileges repeatedly until one reaches root. Normally a single exploit can only take advantage of a specific software vulnerability. Often, when an exploit is published, the vulnerability is fixed through a patch and the exploit becomes obsolete until newer versions of the software become available. This is the reason why some black hat hackers do not publish their exploits but keep them private to themselves or other hackers. Such exploits are referred to as zero day exploits and to obtain access to such exploits is the primary desire of unskilled attackers, often nicknamed script kiddies.

Win 10 version of Keeper has 16-month-old bug allowing sites to steal passwords.
The 19-year-old vulnerability impacts websites from Facebook to Paypal as well as popular software.
From version 12 onward, ME-equipped chips will defend against patch rollbacks Intel's Coffee Lake and Cannon Lake x86 processors can be fortified by computer manufacturers to prevent in hardware attempts to downgrade, exploit and potentially neuter Chi...
Sites vulnerable to newly revived ROBOT exploit included Facebook and PayPal.
On December 12, 2017, a research paper with the title Return of Bleichenbacher's Oracle Threat was made publicly available.

This paper describes how some Transport Layer Security (TLS) stacks are vulnerable to variations of the classic Bleichenbac...
Google's Project Zero releases exploit that offers hope for an iOS 11 jailbreak.
Holy Moley! iOS and MacOS were wholly holey Ian Beer of Google's Project Zero bod has followed up on a “coming soon” Twitter teaser with a jailbreakable iOS and Mac OS vulnerability.…
New strain of Mirai is sophisticated, locked, and loaded.
The end of the year is a good time to take stock of the main cyberthreat incidents that took place over the preceding 12 months or so.

To reflect on the impact these events had on organizations and individuals, and consider what they could mean for the overall evolution of the threat landscape.
A vulnerability in Cisco NX-OS System Software could allow an authenticated, local attacker to bypass signature verification when loading a software patch. The vulnerability is due to insufficient NX-OS signature verification for software patches....
A vulnerability in the TCL scripting subsystem of Cisco NX-OS System Software could allow an authenticated, local attacker to escape the interactive TCL shell and gain unauthorized access to the underlying operating system of the device. The vulne...
A vulnerability in the web-based management interface of Cisco Jabber for Windows, Mac, Android, and iOS could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based management inter...