Multiple Internet to Baseband Remote Code Execution Vulnerabilities in Exynos Modems

An unauthenticated stored XSS (CVE-2026-93485) in WordPress core's wpautop() turns crafted comments into zero-click XSS, escalating to RCE via the admin session. Fixed in 7.1.1, backported to 4.7.36.

/* latin */ @font-face { font-family: 'Consolas'; font-style: normal; font-weight: 400; src: url(https://fonts.gstatic.com/l/font?kit=X7nm4bA-A_-9jbjWaza9xMk&skey=3d1eb1871fcc58a1&v=v20) format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; } @import url('https://themes.googleusercontent.com/fonts/css?kit=lhDjYqiy3mZ0x6ROQEUoUw'); .post-body{ol{margin:0;padding:0}table td,table th{padding:0}.c13{border-right-style:solid;padding:5pt 5pt 5pt 5pt;border-bottom-color:#b7b7b7;border-top-width:1pt;border-right-width:1pt;border-left-color:#b7b7b7;vertical-align:top;border-right-color:#b7b7b7;border-left-width:1pt;border-top-style:solid;border-left-style:solid;border-bottom-width:1pt;width:468pt;border-top-color:#b7b7b7;border-bottom-style:solid}.c0{color:#000000;font-weight:400;text-decoration:none;vertical-align:baseline;font-size:11pt;font-family:"Courier New";font-style:normal}.c5{color:#000000;font-weight:400;text-decoration:none;vertical-align:baseline;font-size:11pt;font-family:"Arial";font-style:normal}.c20{padding-top:20pt;padding-bottom:6pt;line-height:1.5;page-break-after:avoid;orphans:2;widows:2;text-align:left}.c19{color:#000000;font-weight:400;text-decoration:none;vertical-align:baseline;font-size:20pt;font-family:"Arial";font-style:normal}.c1{padding-top:0pt;padding-bottom:0pt;line-height:1.5;orphans:2;widows:2;text-align:right;height:11pt}.c4{padding-top:0pt;padding-bottom:0pt;line-height:1.5;orphans:2;widows:2;text-align:center}.c14{color:#000000;text-decoration:none;vertical-align:baseline;font-size:11pt;font-family:"Arial";font-style:normal}.c3{padding-top:0pt;padding-bottom:0pt;line-height:1.5;orphans:2;widows:2;text-align:left}.c9{color:#000000;font-weight:400;text-decoration:none;vertical-align:baseline;font-size:11pt;font-family:"Arial"}.c12{padding-top:0pt;padding-bottom:0pt;line-height:1.5;orphans:2;widows:2;text-align:right}.c23{color:#000000;text-decoration:none;vertical-align:baseline;font-size:11pt;font-style:normal}.c22{border-spacing:0;border-collapse:collapse;margin-right:auto}.c21{padding-top:0pt;padding-bottom:0pt;line-height:1.0;text-align:left}.c16{text-decoration-skip-ink:none;-webkit-text-decoration-skip:none;color:#1155cc;text-decoration:underline}.c17{background-color:#ffffff;max-width:468pt;padding:72pt 72pt 72pt 72pt}.c2{color:inherit;text-decoration:inherit}.c15{font-weight:400;font-family:Consolas,"Courier New"}.c6{font-weight:400;font-family:"Courier New"}.c8{font-weight:700}.c11{height:0pt}.c7{font-style:italic}.c10{height:11pt}.c18{background-color:#00ff00}.title{padding-top:0pt;color:#000000;font-size:26pt;padding-bottom:3pt;font-family:"Arial";line-height:1.5;page-break-after:avoid;orphans:2;widows:2;text-align:left}.subtitle{padding-top:0pt;color:#666666;font-size:15pt;padding-bottom:16pt;font-family:"Arial";line-height:1.5;page-break-after:avoid;orphans:2;widows:2;text-align:left}li{color:#000000;font-size:11pt;font-family:"Arial"}p{margin:0;color:#000000;font-size:11pt;font-family:"Arial"}h1{padding-top:20pt;color:#000000;font-size:20pt;padding-bottom:6pt;font-family:"Arial";line-height:1.5;page-break-after:avoid;orphans:2;widows:2;text-align:left}h2{padding-top:18pt;color:#000000;font-size:16pt;padding-bottom:6pt;font-family:"Arial";line-height:1.5;page-break-after:avoid;orphans:2;widows:2;text-align:left}h3{padding-top:16pt;color:#434343;font-size:14pt;padding-bottom:4pt;font-family:"Arial";line-height:1.5;page-break-after:avoid;orphans:2;widows:2;text-align:left}h4{padding-top:14pt;color:#666666;font-size:12pt;padding-bottom:4pt;font-family:"Arial";line-height:1.5;page-break-after:avoid;orphans:2;widows:2;text-align:left}h5{padding-top:12pt;color:#666666;font-size:11pt;padding-bottom:4pt;font-family:"Arial";line-height:1.5;page-break-after:avoid;orphans:2;widows:2;text-align:left}h6{padding-top:12pt;color:#666666;font-size:11pt;padding-bottom:4pt;font-family:"Arial";line-height:1.5;page-break-after:avoid;font-style:italic;orphans:2;widows:2;text-align:left}} Posted by Ian Beer & Samuel Groß of Google Project Zero

This blog post discusses a bug leading to memory corruption in Samsung's Android kernel (specifically the kernel of the Galaxy A50, A505FN - I haven't looked at Samsung's kernels for other devices). I will describe the bug and how I wrote a (very unreliable) exploit for it. I will also describe how a second vulnerability, which had long been fixed in the upstream kernel, the upstream stable releases, and the Android common kernel, but not in Samsung's kernel, aided in its exploitation.

A Project Zero post on bypassing Samsung's Real-Time Kernel Protection on Android, defeating hypervisor-based integrity checks meant to block kernel tampering.

Fuzzing Android devices uncovered CVE-2016-3861 in libutils, a severe bug reachable from many attack vectors and usable for remote code execution and elevation into the system_server SELinux domain.

Project Zero researched the Samsung Galaxy S6 Edge and reported 11 high-impact security issues, discussing motivations, methodology and lessons learned from the device research.