{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/products/media-encoder-25.6.4/feed.json","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":7.8,"id":"CVE-2026-34639"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["Media Encoder (\u003c= 26.0.2)","Media Encoder (25.6.4)"],"_cs_severities":["high"],"_cs_tags":["cve","oob-write","code-execution"],"_cs_type":"advisory","_cs_vendors":["Adobe Systems Incorporated"],"content_html":"\u003cp\u003eAdobe Media Encoder versions 26.0.2, 25.6.4, and earlier contain an out-of-bounds write vulnerability (CVE-2026-34639) that can result in arbitrary code execution within the context of the current user. This vulnerability requires user interaction to exploit, specifically the victim must open a specially crafted malicious file using the vulnerable version of Adobe Media Encoder. Successful exploitation could allow an attacker to execute arbitrary code on the victim\u0026rsquo;s system. This poses a significant risk, especially for users who regularly process media files from untrusted sources.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn attacker crafts a malicious media file specifically designed to trigger the out-of-bounds write vulnerability in Adobe Media Encoder.\u003c/li\u003e\n\u003cli\u003eThe attacker lures a victim into opening the malicious media file. This could be achieved through social engineering, such as sending the file as an attachment or embedding it in a website.\u003c/li\u003e\n\u003cli\u003eThe victim opens the malicious file using a vulnerable version of Adobe Media Encoder (26.0.2, 25.6.4, or earlier).\u003c/li\u003e\n\u003cli\u003eAs Adobe Media Encoder processes the file, the out-of-bounds write vulnerability is triggered due to malformed data within the crafted file.\u003c/li\u003e\n\u003cli\u003eThe out-of-bounds write allows the attacker to overwrite arbitrary memory locations within the Adobe Media Encoder process.\u003c/li\u003e\n\u003cli\u003eThe attacker leverages the ability to write to arbitrary memory locations to inject and execute malicious code. This code is executed within the context of the current user.\u003c/li\u003e\n\u003cli\u003eThe attacker gains control of the user\u0026rsquo;s system.\u003c/li\u003e\n\u003cli\u003eThe attacker can now perform actions such as installing malware, stealing data, or further compromising the system.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-34639 leads to arbitrary code execution within the context of the user running Adobe Media Encoder. The attacker could potentially gain full control of the system, leading to data theft, malware installation, or further exploitation of the network. The specific number of affected users is not known, but the vulnerability affects a widely used media processing application.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUpgrade Adobe Media Encoder to a version beyond 26.0.2 or 25.6.4 to patch CVE-2026-34639.\u003c/li\u003e\n\u003cli\u003eImplement the provided Sigma rule \u003ccode\u003eDetect Suspicious File Opens in Adobe Media Encoder\u003c/code\u003e to identify suspicious file access patterns within Adobe Media Encoder processes.\u003c/li\u003e\n\u003cli\u003eEducate users to be cautious when opening media files from untrusted sources to mitigate the user interaction requirement of CVE-2026-34639.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-05-12T18:26:22Z","date_published":"2026-05-12T18:26:22Z","id":"https://feed.craftedsignal.io/briefs/2026-05-cve-2026-34639-ame-oob-write/","summary":"Adobe Media Encoder versions 26.0.2, 25.6.4 and earlier are affected by an out-of-bounds write vulnerability (CVE-2026-34639) that could lead to arbitrary code execution if a user opens a malicious file.","title":"CVE-2026-34639: Adobe Media Encoder Out-of-Bounds Write Vulnerability","url":"https://feed.craftedsignal.io/briefs/2026-05-cve-2026-34639-ame-oob-write/"}],"language":"en","title":"CraftedSignal Threat Feed — Media Encoder (25.6.4)","version":"https://jsonfeed.org/version/1.1"}