{"id":56833,"date":"2026-05-25T17:52:27","date_gmt":"2026-05-25T17:52:27","guid":{"rendered":"https:\/\/zero.redgem.net\/?p=56833"},"modified":"2026-05-25T17:52:27","modified_gmt":"2026-05-25T17:52:27","slug":"gnu-libredwg-dwgread-utility-decodec-decompressr2004section-heap-based-overflow","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=56833","title":{"rendered":"GNU LibreDWG Dwgread Utility decode.c decompress_R2004_section heap-based overflow_CVE-2026-9502"},"content":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;A vulnerability was identified in GNU LibreDWG up to 0.14. This affects the function decompress_R2004_section of the file src\/decode.c of the component Dwgread Utility. The manipulation leads to heap-based buffer overflow. The attack must be carried out locally. The exploit is publicly available and might be used. The identifier of the patch is e501cb9926c1e9a07a0d1cc997f3e69e9be801c9. To fix this issue, it is recommended to deploy a patch.&#8221;,&#8221;published&#8221;:&#8221;2026-05-25T20:45:10.399Z&#8221;,&#8221;modified&#8221;:&#8221;2026-05-25T20:45:10.399Z&#8221;,&#8221;type&#8221;:&#8221;cve&#8221;,&#8221;title&#8221;:&#8221;GNU LibreDWG Dwgread Utility decode.c decompress_R2004_section heap-based overflow&#8221;,&#8221;source&#8221;:&#8221;VulDB&#8221;,&#8221;references&#8221;:&#8221;https:\/\/vuldb.com\/vuln\/365484\\nhttps:\/\/vuldb.com\/vuln\/365484\/cti\\nhttps:\/\/vuldb.com\/submit\/814259\\nhttps:\/\/github.com\/LibreDWG\/libredwg\/issues\/1243\\nhttps:\/\/github.com\/HackC0der\/CVE-Repos\/blob\/main\/libredwg\/libredwg_6d6a339_heap_overflow_decompress_R2004_section.dwg\\nhttps:\/\/github.com\/LibreDWG\/libredwg\/commit\/e501cb9926c1e9a07a0d1cc997f3e69e9be801c9\\nhttps:\/\/www.gnu.org\/&#8221;,&#8221;id&#8221;:&#8221;CVE-2026-9502&#8243;,&#8221;bulletinFamily&#8221;:&#8221;&#8221;,&#8221;cwe&#8221;:[&#8220;CWE-122&#8243;,&#8221;CWE-119&#8243;],&#8221;cvelist&#8221;:null,&#8221;sourceData&#8221;:&#8221;GNU LibreDWG 0.1\\nGNU LibreDWG 0.2\\nGNU LibreDWG 0.3\\nGNU LibreDWG 0.4\\nGNU LibreDWG 0.5\\nGNU LibreDWG 0.6\\nGNU LibreDWG 0.7\\nGNU LibreDWG 0.8\\nGNU LibreDWG 0.9\\nGNU LibreDWG 0.10\\nGNU LibreDWG 0.11\\nGNU LibreDWG 0.12\\nGNU LibreDWG 0.13\\nGNU LibreDWG 0.14&#8243;,&#8221;sourceHref&#8221;:&#8221;&#8221;,&#8221;cvss&#8221;:{&#8220;score&#8221;:4.8,&#8221;severity&#8221;:&#8221;MEDIUM&#8221;,&#8221;vector&#8221;:&#8221;CVSS:4.0\/AV:L\/AC:L\/AT:N\/PR:L\/UI:N\/VC:L\/VI:L\/VA:L\/SC:N\/SI:N\/SA:N\/E:P&#8221;,&#8221;version&#8221;:&#8221;4.0&#8243;},&#8221;cvss2&#8243;:{},&#8221;cvss3&#8243;:{&#8220;version&#8221;:&#8221;&#8221;,&#8221;vectorString&#8221;:&#8221;&#8221;,&#8221;baseScore&#8221;:0,&#8221;baseSeverity&#8221;:&#8221;&#8221;,&#8221;attackVector&#8221;:&#8221;&#8221;,&#8221;attackComplexity&#8221;:&#8221;&#8221;,&#8221;privilegesRequired&#8221;:&#8221;&#8221;,&#8221;userInteraction&#8221;:&#8221;&#8221;,&#8221;scope&#8221;:&#8221;&#8221;,&#8221;confidentialityImpact&#8221;:&#8221;&#8221;,&#8221;integrityImpact&#8221;:&#8221;&#8221;,&#8221;availabilityImpact&#8221;:&#8221;&#8221;,&#8221;cvssV3&#8243;:{&#8220;version&#8221;:&#8221;&#8221;,&#8221;vectorString&#8221;:&#8221;&#8221;,&#8221;baseScore&#8221;:0,&#8221;baseSeverity&#8221;:&#8221;&#8221;,&#8221;attackVector&#8221;:&#8221;&#8221;,&#8221;attackComplexity&#8221;:&#8221;&#8221;,&#8221;privilegesRequired&#8221;:&#8221;&#8221;,&#8221;userInteraction&#8221;:&#8221;&#8221;,&#8221;scope&#8221;:&#8221;&#8221;,&#8221;confidentialityImpact&#8221;:&#8221;&#8221;,&#8221;integrityImpact&#8221;:&#8221;&#8221;,&#8221;availabilityImpact&#8221;:&#8221;&#8221;}},&#8221;href&#8221;:&#8221;&#8221;,&#8221;category_name&#8221;:&#8221;CVE&#8221;,&#8221;post_link&#8221;:&#8221;&#8221;,&#8221;product&#8221;:&#8221;LibreDWG&#8221;,&#8221;version&#8221;:&#8221;0.1&#8243;,&#8221;vendor&#8221;:&#8221;GNU&#8221;,&#8221;ai_description&#8221;:&#8221;&#8221;,&#8221;ai_severity&#8221;:&#8221;&#8221;,&#8221;ai_vendor&#8221;:&#8221;&#8221;,&#8221;ai_product&#8221;:&#8221;&#8221;,&#8221;ai_version&#8221;:&#8221;&#8221;,&#8221;ai_score&#8221;:0}<\/p>\n","protected":false},"excerpt":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;A vulnerability was identified in GNU LibreDWG up to 0.14. This affects the function decompress_R2004_section of the file src\/decode.c of the component Dwgread Utility. The&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[6,8,75,12,21,13,7,11,5],"class_list":["post-56833","post","type-post","status-publish","format-standard","hentry","category-category_cve","tag-cve","tag-cvss","tag-cvss-48","tag-exploit","tag-medium","tag-news","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>GNU LibreDWG Dwgread Utility decode.c decompress_R2004_section heap-based overflow_CVE-2026-9502 - zero redgem<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zero.redgem.net\/?p=56833\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"GNU LibreDWG Dwgread Utility decode.c decompress_R2004_section heap-based overflow_CVE-2026-9502 - zero redgem\" \/>\n<meta property=\"og:description\" content=\"{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;A vulnerability was identified in GNU LibreDWG up to 0.14. 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