{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/tags/cve-2026-27238/feed.json","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":7.8,"id":"CVE-2026-27238"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["InDesign"],"_cs_severities":["high"],"_cs_tags":["CVE-2026-27238","heap-based buffer overflow","adobe indesign","code execution"],"_cs_type":"advisory","_cs_vendors":["Adobe"],"content_html":"\u003cp\u003eCVE-2026-27238 describes a heap-based buffer overflow vulnerability affecting Adobe InDesign Desktop versions 20.5.2, 21.2, and earlier. The vulnerability could allow an attacker to execute arbitrary code within the security context of the currently logged-in user. Successful exploitation of this vulnerability requires a user to open a specially crafted, malicious InDesign file. This vulnerability was reported on April 14, 2026, and the primary concern for defenders lies in preventing users from interacting with potentially malicious InDesign files delivered via phishing or other means. Defenders should ensure users are educated about the risks of opening untrusted files and that InDesign installations are up to date.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003e\u003cstrong\u003eDelivery:\u003c/strong\u003e The attacker crafts a malicious InDesign file designed to trigger the heap-based buffer overflow. The file is delivered to the victim via email, shared network drive, or other file-sharing mechanisms.\u003c/li\u003e\n\u003cli\u003e\u003cstrong\u003eUser Interaction:\u003c/strong\u003e The victim, unaware of the file's malicious nature, opens the crafted InDesign file using a vulnerable version of Adobe InDesign.\u003c/li\u003e\n\u003cli\u003e\u003cstrong\u003eExploitation:\u003c/strong\u003e Upon opening the malicious file, the heap-based buffer overflow is triggered due to the way InDesign parses the file's data structures.\u003c/li\u003e\n\u003cli\u003e\u003cstrong\u003eCode Execution:\u003c/strong\u003e The buffer overflow allows the attacker to overwrite parts of InDesign's memory, injecting and executing arbitrary code.\u003c/li\u003e\n\u003cli\u003e\u003cstrong\u003ePrivilege Context:\u003c/strong\u003e The injected code executes within the context of the current user account, inheriting its privileges and access rights.\u003c/li\u003e\n\u003cli\u003e\u003cstrong\u003ePersistence/Lateral Movement (Optional):\u003c/strong\u003e Depending on the attacker's objectives, they may attempt to establish persistence on the system (e.g., via registry keys or scheduled tasks) or use the compromised system as a pivot point for lateral movement within the network.\u003c/li\u003e\n\u003cli\u003e\u003cstrong\u003eObjective Achieved:\u003c/strong\u003e The attacker achieves their objective, which may include data theft, installation of malware, or further compromise of the system or network.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-27238 can lead to arbitrary code execution on the victim's machine.  The impact includes potential data loss, system compromise, and further propagation of malware within an organization. Given the widespread use of Adobe InDesign in creative and publishing industries, a successful campaign could affect a significant number of users and organizations.  The severity is compounded by the ease with which malicious files can be disseminated.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eEducate users about the dangers of opening unsolicited or untrusted files, particularly those with the \u003ccode\u003e.indd\u003c/code\u003e extension associated with Adobe InDesign.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rule \u003ccode\u003eDetect Suspicious InDesign Child Processes\u003c/code\u003e to identify potentially malicious processes spawned by InDesign.\u003c/li\u003e\n\u003cli\u003eMonitor process creation events for unusual child processes of InDesign, as highlighted in the Sigma rule \u003ccode\u003eDetect Suspicious InDesign Child Processes\u003c/code\u003e.\u003c/li\u003e\n\u003cli\u003eUpdate Adobe InDesign to the latest version to patch CVE-2026-27238 and other security vulnerabilities.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2024-01-23T12:00:00Z","date_published":"2024-01-23T12:00:00Z","id":"https://feed.craftedsignal.io/briefs/2024-01-23-adobe-indesign-heap-overflow/","summary":"Adobe InDesign Desktop versions 20.5.2, 21.2 and earlier are vulnerable to a heap-based buffer overflow, potentially leading to arbitrary code execution if a user opens a malicious file.","title":"Adobe InDesign Heap-Based Buffer Overflow Vulnerability (CVE-2026-27238)","url":"https://feed.craftedsignal.io/briefs/2024-01-23-adobe-indesign-heap-overflow/"}],"language":"en","title":"CraftedSignal Threat Feed - CVE-2026-27238","version":"https://jsonfeed.org/version/1.1"}