{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/tags/cve-2026-34629/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[{"cvss":7.8,"id":"CVE-2026-34629"}],"_cs_exploited":false,"_cs_products":[],"_cs_severities":["high"],"_cs_tags":["cve-2026-34629","heap-overflow","adobe-indesign"],"_cs_type":"advisory","_cs_vendors":[],"content_html":"\u003cp\u003eAdobe InDesign Desktop versions 20.5.2, 21.2, and earlier are susceptible to a heap-based buffer overflow vulnerability identified as CVE-2026-34629. This vulnerability allows for arbitrary code execution within the security context of the currently logged-in user. To exploit this vulnerability, a user must interact with a specially crafted malicious file. Successful exploitation could allow an attacker to gain control of the affected system, potentially leading to data theft, malware installation, or other malicious activities. Defenders should prioritize patching vulnerable InDesign installations and educating users about the risks of opening untrusted files.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAttacker crafts a malicious InDesign file designed to trigger a heap-based buffer overflow.\u003c/li\u003e\n\u003cli\u003eThe attacker distributes the malicious file to a target, possibly via email or other file-sharing methods.\u003c/li\u003e\n\u003cli\u003eThe victim opens the malicious InDesign file using a vulnerable version of Adobe InDesign (20.5.2, 21.2, or earlier).\u003c/li\u003e\n\u003cli\u003eThe application attempts to process the malformed data within the file.\u003c/li\u003e\n\u003cli\u003eDue to the buffer overflow, the application writes data beyond the allocated buffer on the heap.\u003c/li\u003e\n\u003cli\u003eThis overwrites adjacent memory regions, potentially corrupting critical data or function pointers.\u003c/li\u003e\n\u003cli\u003eThe attacker gains control of the instruction pointer and redirects execution flow to attacker-controlled code.\u003c/li\u003e\n\u003cli\u003eThe attacker executes arbitrary code within the context of the InDesign process, achieving code execution on the victim\u0026rsquo;s machine.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-34629 allows an attacker to execute arbitrary code on a vulnerable system with the privileges of the logged-in user. This could lead to complete system compromise, data theft, installation of malware, or other malicious activities. The impact is significant due to the widespread use of Adobe InDesign in professional design and publishing environments. If a successful attack occurs within a corporate environment it could compromise sensitive business documents.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eImmediately patch Adobe InDesign to the latest version to remediate CVE-2026-34629.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rules provided in this brief to your SIEM to detect potential exploitation attempts.\u003c/li\u003e\n\u003cli\u003eEducate users about the dangers of opening untrusted files, especially those received from unknown sources, to mitigate the initial attack vector.\u003c/li\u003e\n\u003cli\u003eMonitor process creation events for suspicious processes spawned by InDesign, as indicated in the provided Sigma rule.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-04-15T12:00:00Z","date_published":"2026-04-15T12:00:00Z","id":"/briefs/2026-04-indesign-heap-overflow/","summary":"Adobe InDesign versions 20.5.2, 21.2 and earlier are vulnerable to a heap-based buffer overflow (CVE-2026-34629) that could lead to arbitrary code execution if a user opens a malicious file.","title":"Adobe InDesign Heap-Based Buffer Overflow Vulnerability (CVE-2026-34629)","url":"https://feed.craftedsignal.io/briefs/2026-04-indesign-heap-overflow/"}],"language":"en","title":"CraftedSignal Threat Feed — Cve-2026-34629","version":"https://jsonfeed.org/version/1.1"}