{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/products/tigervnc/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[],"_cs_exploited":false,"_cs_products":["tigervnc"],"_cs_severities":["high"],"_cs_tags":["tigervnc","vulnerability","denial of service","information disclosure"],"_cs_type":"advisory","_cs_vendors":["tigervnc"],"content_html":"\u003cp\u003eA vulnerability exists in tigervnc that allows a local attacker to perform several malicious actions. The attacker can leverage this flaw to disclose sensitive information, manipulate critical files, and trigger a denial of service condition, potentially disrupting services and causing data breaches. The specific details of the vulnerability and affected versions of tigervnc are not detailed in the source document. Defenders should investigate the root cause and patch affected systems immediately.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eThe attacker gains local access to a system running tigervnc.\u003c/li\u003e\n\u003cli\u003eThe attacker leverages a specific vulnerability within tigervnc, exploiting an unspecified flaw.\u003c/li\u003e\n\u003cli\u003eThe attacker triggers information disclosure, potentially revealing sensitive data stored or processed by tigervnc.\u003c/li\u003e\n\u003cli\u003eThe attacker uses the vulnerability to manipulate files within the system, possibly altering configurations or injecting malicious code.\u003c/li\u003e\n\u003cli\u003eThe attacker exploits the vulnerability to cause a denial of service condition, crashing the tigervnc service or the entire system.\u003c/li\u003e\n\u003cli\u003eThe attacker may attempt to escalate privileges or move laterally within the network, depending on the impact of the file manipulation.\u003c/li\u003e\n\u003cli\u003eThe attack results in data exfiltration, data corruption, or system unavailability.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of this vulnerability can lead to sensitive information disclosure, unauthorized file modification, and service disruption. The lack of specific victim or sector information prevents quantification of the impact, but the potential for data breaches and service outages is significant. Organizations using tigervnc are at risk, and a successful attack could compromise sensitive data or disrupt critical operations.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInvestigate and patch any identified tigervnc vulnerabilities immediately.\u003c/li\u003e\n\u003cli\u003eMonitor systems running tigervnc for suspicious file access or modification attempts using endpoint detection and response (EDR) solutions.\u003c/li\u003e\n\u003cli\u003eImplement the Sigma rules below to detect potential exploitation attempts in process creation logs.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-05-06T09:12:11Z","date_published":"2026-05-06T09:12:11Z","id":"/briefs/2026-05-tigervnc-vuln/","summary":"A local attacker can exploit a vulnerability in tigervnc to disclose information, manipulate files, and perform a denial of service attack.","title":"tigervnc Vulnerability Allows Information Disclosure, File Manipulation, and Denial of Service","url":"https://feed.craftedsignal.io/briefs/2026-05-tigervnc-vuln/"}],"language":"en","title":"CraftedSignal Threat Feed — Tigervnc","version":"https://jsonfeed.org/version/1.1"}