- \n
- Exploit type: Copy\u2011on\u2011write (COW) privilege escalation<\/li>\n
- Attack vector: Poisoning of cached binaries in memory<\/li>\n
- Impact: Local attacker can elevate to root privileges<\/li>\n
- Similarity: Shares characteristics with the DirtyClone kernel flaw, which also provides local root access with no disk footprint<\/li>\n
- Affected versions: All Linux kernel releases prior to the latest security patch (specific versions not disclosed)<\/li>\n<\/ul>\n
Quotes<\/h2>\n
No direct statements from security researchers or vendors were quoted in the available reports.<\/p>\n
Background<\/h2>\n
Linux kernel vulnerabilities that allow local privilege escalation have a long history, with the DirtyClone bug in 2020 being a notable example. That flaw also leveraged COW mechanics to grant root access without writing to disk. The current vulnerability follows a similar pattern, underscoring the ongoing challenge of securing kernel memory management.<\/p>\n
Conclusion<\/h2>\n
System administrators should apply the latest kernel updates immediately and monitor for signs of memory tampering. The vulnerability highlights the need for continuous kernel hardening and timely patching to protect critical infrastructure from local attackers.<\/p>\n
\n<\/div>\n
\nAbout the author<\/h3>\n
bossprp<\/strong><\/p>\n<\/div>\n<\/div>\n
Share this story:<\/strong> WhatsApp<\/a>Telegram<\/a>X<\/a>Facebook<\/a><\/div>","protected":false},"excerpt":{"rendered":"A newly discovered critical vulnerability in the Linux kernel allows local attackers to elevate privileges to root by exploiting a copy\u2011on\u2011write flaw that can poison cached binaries. The flaw, similar to the earlier DirtyClone bug, leaves no trace on disk and poses a significant threat to systems running vulnerable kernels.<\/p>","protected":false},"author":71,"featured_media":2156,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ai_generated_summary":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[349],"tags":[4365,4367,3992,4363,221,351,4361],"class_list":["post-2155","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology-en","tag-cow","tag-kernel-flaw","tag-linux","tag-root-privilege-escalation","tag-security","tag-technology","tag-vulnerability"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/newzquest.in\/wp-content\/uploads\/newzquest-newsfactory\/nqnf-ai-2155.jpg?fit=1024%2C576&ssl=1","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":1878,"url":"https:\/\/newzquest.in\/hi\/dirtyclone-a-linux-privilege-escalation-that-leaves-no-trace-on-disk\/","url_meta":{"origin":2155,"position":0},"title":"DirtyClone: A Linux Privilege Escalation That Leaves No Trace on Disk","author":"Arjun Mehta","date":"\u091c\u0942\u0928 29, 2026","format":false,"excerpt":"A source-backed NewsFactory brief on DirtyClone: A Linux Privilege Escalation That Leaves No Trace on Disk, with linked references and reader-focused context.","rel":"","context":"In "Technology"","block_context":{"text":"Technology","link":"https:\/\/newzquest.in\/hi\/category\/technology-en\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/newzquest.in\/wp-content\/uploads\/newzquest-newsfactory\/nqnf-ai-1878.jpg?fit=1024%2C576&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/newzquest.in\/wp-content\/uploads\/newzquest-newsfactory\/nqnf-ai-1878.jpg?fit=1024%2C576&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/newzquest.in\/wp-content\/uploads\/newzquest-newsfactory\/nqnf-ai-1878.jpg?fit=1024%2C576&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/newzquest.in\/wp-content\/uploads\/newzquest-newsfactory\/nqnf-ai-1878.jpg?fit=1024%2C576&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":5100,"url":"https:\/\/newzquest.in\/hi\/ai-discovers-15-year-old-linux-root-vulnerability-missed-by-experts\/","url_meta":{"origin":2155,"position":1},"title":"Ai Discovers 15-year-old Linux Root Vulnerability Missed by Experts","author":"Neha Kapoor","date":"\u091c\u0941\u0932\u093e\u0908 13, 2026","format":false,"excerpt":"An artificial\u2011intelligence system has identified a critical Linux kernel bug that grants root access, a flaw that has gone undetected for a decade and a half, raising fresh concerns about open\u2011source security.","rel":"","context":"In "India"","block_context":{"text":"India","link":"https:\/\/newzquest.in\/hi\/category\/india-en\/"},"img":{"alt_text":"Neha Kapoor","src":"https:\/\/i0.wp.com\/newzquest.in\/wp-content\/uploads\/2026\/07\/Neha-Kapoor-1.png?fit=64%2C64&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":65,"url":"https:\/\/newzquest.in\/hi\/openai-unveils-gpt-5-5-cyber-fully-automated-vulnerability-detection-and-patch-management\/","url_meta":{"origin":2155,"position":2},"title":"OpenAI Unveils GPT\u20115.5\u2011Cyber: Fully Automated Vulnerability Detection and Patch Management","author":"Aaditya Raj","date":"\u091c\u0942\u0928 24, 2026","format":false,"excerpt":"OpenAI\u2019s latest GPT\u20115.5\u2011Cyber model promises end\u2011to\u2011end automation for spotting and fixing software flaws, partnering with IBM and expanding its reach into open\u2011source security. The new tool could redefine how enterprises defend against cyber threats.","rel":"","context":"In "Breaking News"","block_context":{"text":"Breaking News","link":"https:\/\/newzquest.in\/hi\/category\/breaking-news\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/newzquest.in\/wp-content\/uploads\/newzquest-newsfactory\/nqnf-ai-65.jpg?fit=1024%2C576&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/newzquest.in\/wp-content\/uploads\/newzquest-newsfactory\/nqnf-ai-65.jpg?fit=1024%2C576&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/newzquest.in\/wp-content\/uploads\/newzquest-newsfactory\/nqnf-ai-65.jpg?fit=1024%2C576&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/newzquest.in\/wp-content\/uploads\/newzquest-newsfactory\/nqnf-ai-65.jpg?fit=1024%2C576&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":2736,"url":"https:\/\/newzquest.in\/hi\/microsoft-called-linux-a-cancer-now-ships-its-own-free-distro-thats-nothing-like-ubuntu-or\/","url_meta":{"origin":2155,"position":3},"title":"Microsoft called Linux a cancer, now ships its own free distro that’s nothing like Ubuntu or…","author":"Arjun Mehta","date":"\u091c\u0942\u0928 30, 2026","format":false,"excerpt":"Microsoft called Linux a cancer, now ships its own free distro that's nothing like Ubuntu or Fedora","rel":"","context":"In "Technology"","block_context":{"text":"Technology","link":"https:\/\/newzquest.in\/hi\/category\/technology-en\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/newzquest.in\/wp-content\/uploads\/newzquest-newsfactory\/nqnf-ai-2736.jpg?fit=1024%2C576&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/newzquest.in\/wp-content\/uploads\/newzquest-newsfactory\/nqnf-ai-2736.jpg?fit=1024%2C576&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/newzquest.in\/wp-content\/uploads\/newzquest-newsfactory\/nqnf-ai-2736.jpg?fit=1024%2C576&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/newzquest.in\/wp-content\/uploads\/newzquest-newsfactory\/nqnf-ai-2736.jpg?fit=1024%2C576&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":2719,"url":"https:\/\/newzquest.in\/hi\/ukrainian-drone-strike-sends-black-smoke-from-russian-oil-refinery-one-fatality\/","url_meta":{"origin":2155,"position":4},"title":"Ukrainian Drone Strike Sends Black Smoke from Russian Oil Refinery, One Fatality","author":"Arjun Mehta","date":"\u091c\u0942\u0928 30, 2026","format":false,"excerpt":"A Ukrainian drone attack on a Russian oil refinery in the Donetsk region produced a plume of black smoke and claimed one life, marking a new escalation in the conflict.","rel":"","context":"In "World"","block_context":{"text":"World","link":"https:\/\/newzquest.in\/hi\/category\/world-en\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/newzquest.in\/wp-content\/uploads\/newzquest-newsfactory\/nqnf-ai-2719.jpg?fit=1024%2C576&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/newzquest.in\/wp-content\/uploads\/newzquest-newsfactory\/nqnf-ai-2719.jpg?fit=1024%2C576&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/newzquest.in\/wp-content\/uploads\/newzquest-newsfactory\/nqnf-ai-2719.jpg?fit=1024%2C576&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/newzquest.in\/wp-content\/uploads\/newzquest-newsfactory\/nqnf-ai-2719.jpg?fit=1024%2C576&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":2114,"url":"https:\/\/newzquest.in\/hi\/mumbai-police-arrest-man-with-15000-rat-poison-capsules-during-muharram-procession\/","url_meta":{"origin":2155,"position":5},"title":"Mumbai Police Arrest Man with 15,000 Rat Poison Capsules During Muharram Procession","author":"Arjun Mehta","date":"\u091c\u0942\u0928 29, 2026","format":false,"excerpt":"A man was detained by Mumbai police after being found in possession of nearly 15,000 rat poison capsules at a Muharram rally, averting a potential mass poisoning incident.","rel":"","context":"In "Crime"","block_context":{"text":"Crime","link":"https:\/\/newzquest.in\/hi\/category\/crime-en\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/newzquest.in\/wp-content\/uploads\/newzquest-newsfactory\/nqnf-ai-2114.jpg?fit=1024%2C576&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/newzquest.in\/wp-content\/uploads\/newzquest-newsfactory\/nqnf-ai-2114.jpg?fit=1024%2C576&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/newzquest.in\/wp-content\/uploads\/newzquest-newsfactory\/nqnf-ai-2114.jpg?fit=1024%2C576&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/newzquest.in\/wp-content\/uploads\/newzquest-newsfactory\/nqnf-ai-2114.jpg?fit=1024%2C576&ssl=1&resize=700%2C400 2x"},"classes":[]}],"jetpack_shortlink":"https:\/\/wp.me\/persGN-yL","_links":{"self":[{"href":"https:\/\/newzquest.in\/hi\/wp-json\/wp\/v2\/posts\/2155","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/newzquest.in\/hi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/newzquest.in\/hi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/newzquest.in\/hi\/wp-json\/wp\/v2\/users\/71"}],"replies":[{"embeddable":true,"href":"https:\/\/newzquest.in\/hi\/wp-json\/wp\/v2\/comments?post=2155"}],"version-history":[{"count":0,"href":"https:\/\/newzquest.in\/hi\/wp-json\/wp\/v2\/posts\/2155\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/newzquest.in\/hi\/wp-json\/wp\/v2\/media\/2156"}],"wp:attachment":[{"href":"https:\/\/newzquest.in\/hi\/wp-json\/wp\/v2\/media?parent=2155"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/newzquest.in\/hi\/wp-json\/wp\/v2\/categories?post=2155"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/newzquest.in\/hi\/wp-json\/wp\/v2\/tags?post=2155"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}