{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/tags/cve-2026-32086/feed.json","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":7,"id":"CVE-2026-32086"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["Windows"],"_cs_severities":["high"],"_cs_tags":["cve-2026-32086","privilege-escalation","race-condition","windows"],"_cs_type":"advisory","_cs_vendors":["Microsoft"],"content_html":"\u003cp\u003eCVE-2026-32086 describes a privilege escalation vulnerability affecting the Function Discovery Service (fdwsd.dll) on Windows systems. This vulnerability arises from a race condition in the service's handling of shared resources, allowing a local attacker with existing authorized access to potentially escalate their privileges. While the specific affected versions and exploitation details are not provided in the source, the vulnerability's existence poses a risk to systems where the Function Discovery Service is enabled. Successful exploitation could grant an attacker elevated control over the compromised machine, enabling further malicious activities. Defenders should prioritize patching systems when updates become available from Microsoft.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAttacker gains initial authorized local access to the target Windows system.\u003c/li\u003e\n\u003cli\u003eAttacker identifies that the Function Discovery Service (fdwsd.dll) is running.\u003c/li\u003e\n\u003cli\u003eAttacker crafts a malicious program designed to exploit the race condition in fdwsd.dll.\u003c/li\u003e\n\u003cli\u003eThe malicious program initiates concurrent execution flows that target the shared resource within the Function Discovery Service.\u003c/li\u003e\n\u003cli\u003eDue to the improper synchronization, the attacker's crafted input causes a race condition, leading to an unintended state within the service.\u003c/li\u003e\n\u003cli\u003eThis unintended state allows the attacker to overwrite critical memory locations or manipulate service execution flow.\u003c/li\u003e\n\u003cli\u003eAs a result of the memory corruption or manipulated execution flow, the attacker gains elevated privileges within the context of the Function Discovery Service.\u003c/li\u003e\n\u003cli\u003eThe attacker leverages the elevated privileges to perform actions they were not previously authorized to perform, such as installing software, modifying system settings, or accessing sensitive data.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-32086 allows an attacker to escalate their privileges on a vulnerable Windows system. While the exact number of potential victims is unknown, the vulnerability poses a significant risk to organizations relying on the Function Discovery Service. A successful attack could lead to complete system compromise, data theft, or the installation of malware.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMonitor process creation events for unexpected processes spawning from the Function Discovery Service (fdwsd.dll) to detect potential exploitation attempts (see Sigma rule below).\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rules in this brief to your SIEM and tune for your environment.\u003c/li\u003e\n\u003cli\u003eApply the security patch provided by Microsoft for CVE-2026-32086 as soon as it becomes available to remediate the vulnerability.\u003c/li\u003e\n\u003cli\u003eMonitor for registry modifications related to the Function Discovery Service that could indicate malicious attempts to persist or manipulate the service.\u003c/li\u003e\n\u003cli\u003eInvestigate any alerts related to unexpected behavior or crashes of the Function Discovery Service.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2024-01-03T12:00:00Z","date_published":"2024-01-03T12:00:00Z","id":"https://feed.craftedsignal.io/briefs/2024-01-cve-2026-32086/","summary":"CVE-2026-32086 is a race condition vulnerability in the Function Discovery Service (fdwsd.dll) that allows an authorized local attacker to elevate privileges on a Windows system.","title":"CVE-2026-32086 Function Discovery Service Race Condition Privilege Escalation","url":"https://feed.craftedsignal.io/briefs/2024-01-cve-2026-32086/"}],"language":"en","title":"CraftedSignal Threat Feed - Cve-2026-32086","version":"https://jsonfeed.org/version/1.1"}