{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/tags/uaf/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[{"cvss":7.3,"id":"CVE-2026-34856"}],"_cs_exploited":false,"_cs_products":[],"_cs_severities":["medium"],"_cs_tags":["vulnerability","uaf","dos"],"_cs_type":"advisory","_cs_vendors":[],"content_html":"\u003cp\u003eCVE-2026-34856 describes a use-after-free (UAF) vulnerability within the communication module of an unspecified Huawei product. This vulnerability arises from a race condition (CWE-362) during concurrent execution involving shared resources and improper synchronization. The vulnerability was published on April 13, 2026. Successful exploitation could lead to a denial of service. Publicly available information is limited to the NVD entry and Huawei\u0026rsquo;s security bulletins, hindering a complete understanding of the affected products and specific exploitation vectors.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn attacker attempts to trigger concurrent execution paths within the communication module.\u003c/li\u003e\n\u003cli\u003eThe attacker exploits a race condition (CWE-362) in the shared resource access.\u003c/li\u003e\n\u003cli\u003eOne thread frees a memory location while another thread still holds a pointer to it.\u003c/li\u003e\n\u003cli\u003eThe second thread attempts to access the freed memory location (use-after-free).\u003c/li\u003e\n\u003cli\u003eThis results in memory corruption or an attempt to execute code at an invalid memory address.\u003c/li\u003e\n\u003cli\u003eThe affected communication module crashes due to the memory access violation.\u003c/li\u003e\n\u003cli\u003eThe overall system or process relying on the communication module experiences a denial-of-service.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-34856 results in a denial-of-service condition. The impact is limited to availability, as specified in the NVD description. The number of affected devices and specific products remain unclear. Exploitation requires local access and does not need user interaction, but does not grant elevated privileges.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMonitor for unexpected process crashes related to Huawei communication modules, using process_creation logs and look for abnormal termination signals (rules provided below).\u003c/li\u003e\n\u003cli\u003eInvestigate systems exhibiting resource contention and synchronization issues using performance monitoring tools.\u003c/li\u003e\n\u003cli\u003eConsult Huawei\u0026rsquo;s security bulletins (\u003ca href=\"https://consumer.huawei.com/en/support/bulletin/2026/4/\"\u003ehttps://consumer.huawei.com/en/support/bulletin/2026/4/\u003c/a\u003e, \u003ca href=\"https://consumer.huawei.com/en/support/bulletinwearables/2026/4/\"\u003ehttps://consumer.huawei.com/en/support/bulletinwearables/2026/4/\u003c/a\u003e) for specific product advisories and available patches.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-04-13T04:16:12Z","date_published":"2026-04-13T04:16:12Z","id":"/briefs/2026-04-huawei-uaf/","summary":"A use-after-free vulnerability, tracked as CVE-2026-34856, exists in Huawei's communication module due to improper synchronization in concurrent execution, potentially leading to a denial-of-service condition.","title":"Huawei Communication Module Use-After-Free Vulnerability (CVE-2026-34856)","url":"https://feed.craftedsignal.io/briefs/2026-04-huawei-uaf/"}],"language":"en","title":"CraftedSignal Threat Feed — Uaf","version":"https://jsonfeed.org/version/1.1"}