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An exploit is code, data, or a sequence of actions that uses a software, hardware, or configuration vulnerability to produce unintended behavior. Depending on the flaw and the attacker’s access, it may enable unauthorized code execution, privilege escalation, information disclosure, or denial of service. Exploitation can occur remotely through exposed services, web applications, or client software, or locally after an attacker gains limited access.
Exploitation matters because a vulnerability becomes an active attack path when the required conditions are reachable and exploitable. Defenders should inventory affected assets, prioritize remediation when exploitation is known or credible, apply patches or vendor mitigations, and reduce exposure through access controls, segmentation, and secure configuration. Monitoring for exploit-specific indicators—such as abnormal requests, unexpected processes, or privilege changes—supports detection; systems suspected of successful exploitation require containment and investigation for follow-on access.
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When chained together, the two vulnerabilities allow threat actors to gain root-level capabilities on SonicWall's mobile access appliances.
Email attacks overtook exploits as the top ransomware root cause last year. Multifactor authentication (MFA) was deployed in 97% of credential-based attacks but failed to prevent compromise.
When combined with another exploit, the "PromptFiction" vulnerability, which has been fixed, could have enabled an end-to-end attack on a targeted system.
Simple age-old bugs give bad actors access to developers' secrets and source code-rich environments.
The researcher known as "Nightmare-Eclipse" published a proof-of-concept (PoC) exploit for the Windows Defender vulnerability in early June after dropping several other Microsoft zero-days.
Attackers wasted little time targeting the latest memory disclosure flaw in Citrix's NetScaler products, after researchers published a proof-of-concept exploit (PoC).
Expect more compressed patching cycles from Apple going forward, as attackers leverage artificial intelligence to reduce time to exploit.
"Agentjacking" is the latest demonstration of how easily attackers can exploit an AI agent's inability to differentiate between content and instructions.
Attackers can exploit the issue to disable security and integrated browser tools without needing administrator privileges or kernel exploits.
Four vulnerabilities allow attackers to exploit Dify, a platform for AI application building and management, to silently access and exfiltrate sensitive data.
The denial-of-service (DoS) exploit takes advantage of two features in HTTP/2 that were designed to save Internet bandwith, not power massive amplification attacks.
Initial methods suggest attackers had likely mapped out Ivanti's asset landscape upfront and acted quickly once the exploit became public.
The disgruntled researcher released yet another PoC for a Windows Defender bug that allows for system takeover, showing no signs of abandoning their ongoing feud with Microsoft.
After a disgruntled security researcher published several zero-day exploits in recent weeks, Microsoft seemingly indicated criminal charges were in order.
Exploiting the PAN-OS GlobalProtect VPN vulnerability requires certain conditions, but adversaries have done so in two attack waves that started in mid-May.
Researchers discover an exploit chain combining over-permissioned roles, secrets discovery, and non-human identities that could have compromised a popular automation service.
Attackers are using AI to dramatically reduce the time they need to develop a working exploit for a CVE, according to new research.
The Underminr domain-fronting attack allows threat actors to modify Web requests and leverage trusted websites to cloak malicious activity.
An unauthenticated attacker can exploit the command injection vulnerability to gain remote access to robotic systems, causing significant disruption to the environment.
Verizon's 2026 Data Breach Investigations Report (DBIR) finds that exploits are now involved in 31% of initial access for breaches, while patching lags too far behind the bad guys.