{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/tags/illustrator/feed.json","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":7.8,"id":"CVE-2026-34687"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["Illustrator (\u003c= 30.3)"],"_cs_severities":["high"],"_cs_tags":["cve","buffer-overflow","adobe","illustrator","code-execution"],"_cs_type":"advisory","_cs_vendors":["Adobe Systems Incorporated"],"content_html":"\u003cp\u003eCVE-2026-34687 describes a heap-based buffer overflow vulnerability affecting Adobe Illustrator versions 29.8.6, 30.3, and earlier. This vulnerability can be exploited when a user opens a specially crafted, malicious file. Successful exploitation of this vulnerability allows an attacker to execute arbitrary code within the security context of the current user. The vulnerability requires user interaction, as the victim must open a malicious file. This poses a risk to organizations and individuals who rely on Adobe Illustrator for design and editing, potentially leading to data breaches, system compromise, or other malicious activities if a user within the organization opens a malicious Illustrator file.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eThe attacker crafts a malicious Adobe Illustrator file designed to trigger a heap-based buffer overflow.\u003c/li\u003e\n\u003cli\u003eThe attacker delivers the malicious file to the victim, potentially through email, file sharing, or a compromised website.\u003c/li\u003e\n\u003cli\u003eThe victim opens the malicious Illustrator file using a vulnerable version of Adobe Illustrator (29.8.6, 30.3, or earlier).\u003c/li\u003e\n\u003cli\u003eIllustrator parses the malicious file, and the specially crafted data overflows the heap buffer during processing.\u003c/li\u003e\n\u003cli\u003eThe buffer overflow overwrites adjacent memory regions on the heap, potentially overwriting critical data structures or function pointers.\u003c/li\u003e\n\u003cli\u003eThe attacker gains control of the program execution flow due to the overwritten function pointers.\u003c/li\u003e\n\u003cli\u003eThe attacker executes arbitrary code within the context of the current user.\u003c/li\u003e\n\u003cli\u003eThe attacker can then perform malicious actions such as installing malware, stealing sensitive data, or compromising the system.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-34687 allows an attacker to execute arbitrary code on the victim\u0026rsquo;s system with the privileges of the logged-in user. This could lead to a complete compromise of the system, including the theft of sensitive data, installation of malware, or further propagation of the attack within the network. While specific victim counts and sector targeting are unavailable, any user opening a malicious file is at risk.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUpgrade Adobe Illustrator to a version beyond 30.3 to patch CVE-2026-34687 as referenced in the advisory URL.\u003c/li\u003e\n\u003cli\u003eImplement user awareness training to educate users about the risks of opening unsolicited or suspicious files, especially those from untrusted sources to mitigate the initial attack vector.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rule \u0026ldquo;Detect Suspicious File Open with Adobe Illustrator\u0026rdquo; to detect potentially malicious file opens.\u003c/li\u003e\n\u003cli\u003eMonitor process creation events for unusual child processes spawned by Illustrator, potentially indicating successful code execution after the overflow.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-05-12T18:28:31Z","date_published":"2026-05-12T18:28:31Z","id":"https://feed.craftedsignal.io/briefs/2026-05-cve-2026-34687-illustrator-overflow/","summary":"Adobe Illustrator versions 29.8.6, 30.3 and earlier are affected by a heap-based buffer overflow vulnerability (CVE-2026-34687) that can lead to arbitrary code execution if a user opens a malicious file.","title":"CVE-2026-34687: Adobe Illustrator Heap-based Buffer Overflow","url":"https://feed.craftedsignal.io/briefs/2026-05-cve-2026-34687-illustrator-overflow/"}],"language":"en","title":"CraftedSignal Threat Feed — Illustrator","version":"https://jsonfeed.org/version/1.1"}