{"vulnerability": "CVE-2021-21153", "sightings": [{"uuid": "2da04e44-6612-4c30-b9ac-24f2cbf56a1e", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21153", "type": "seen", "source": "https://t.me/cibsecurity/23954", "content": "\u203c CVE-2021-21153 \u203c\n\nStack buffer overflow in GPU Process in Google Chrome on Linux prior to 88.0.4324.182 allowed a remote attacker to potentially perform out of bounds memory access via a crafted HTML page.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2021-02-23T00:33:55.000000Z"}, {"uuid": "34c6f0fd-5bd8-4b12-98c5-a0168a34b76c", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21153", "type": "published-proof-of-concept", "source": "https://t.me/CyberSecurityTechnologies/3290", "content": "#Threat_Research\nAttack llvmpipe Graphics Driver from Chromium WebGL\nhttps://insinuator.net/2021/05/attack-llvmpipe-graphics-driver-from-chromium\n]-> CVE-2021-21153 (PoC for Ubuntu 20.04):\nhttps://bugs.chromium.org/p/chromium/issues/detail?id=1155974", "creation_timestamp": "2021-05-05T11:01:30.000000Z"}, {"uuid": "15bcfa6c-bfc8-4365-a45e-1ce882718351", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21153", "type": "seen", "source": "https://t.me/cissp/3121", "content": "Threat Research:\nAttack llvmpipe Graphics Driver from Chromium WebGL\nhttps://insinuator.net/2021/05/attack-llvmpipe-graphics-driver-from-chromium\n]-> CVE-2021-21153 (PoC for Ubuntu 20.04):\nhttps://bugs.chromium.org/p/chromium/issues/detail?id=1155974\n\nexploit\ud83d\ude01\nWindows 8.1 IE/Firefox RCE -> Sandbox Escape -> SYSTEM EoP Exploit Chain\nhttps://github.com/forrest-orr/DoubleStar\n\nCVE-2021-21551:\nDell BIOS Driver Privilege Escalation Vulnerability (PoC)\nhttps://labs.sentinelone.com/cve-2021-21551-hundreds-of-millions-of-dell-computers-at-risk-due-to-multiple-bios-driver-privilege-escalation-flaws\n\nWLAN_Security\nShenzhen Skyworth - Multiple Vulnerabilities in RN510 Wireless Mesh Devices (PoCs)\n1. Information Disclosure (CVE-2021-25326)\nhttps://packetstormsecurity.com/files/162455/KSA-Dev-0012.txt\n2. Authenticated XSRF (CVE-2021-25327)\nhttps://seclists.org/fulldisclosure/2021/May/6\n3. Authenticated\u00a0 Stack Overflow (CVE-2021-25328)\nhttps://seclists.org/fulldisclosure/2021/May/5", "creation_timestamp": "2026-09-01T17:00:51.097888Z"}, {"uuid": "5da2dcb0-3299-4df2-aca3-ed13efd215d3", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21153", "type": "seen", "source": "https://t.me/cissp/3121", "content": "Threat Research:\nAttack llvmpipe Graphics Driver from Chromium WebGL\nhttps://insinuator.net/2021/05/attack-llvmpipe-graphics-driver-from-chromium\n]-> CVE-2021-21153 (PoC for Ubuntu 20.04):\nhttps://bugs.chromium.org/p/chromium/issues/detail?id=1155974\n\nexploit\ud83d\ude01\nWindows 8.1 IE/Firefox RCE -> Sandbox Escape -> SYSTEM EoP Exploit Chain\nhttps://github.com/forrest-orr/DoubleStar\n\nCVE-2021-21551:\nDell BIOS Driver Privilege Escalation Vulnerability (PoC)\nhttps://labs.sentinelone.com/cve-2021-21551-hundreds-of-millions-of-dell-computers-at-risk-due-to-multiple-bios-driver-privilege-escalation-flaws\n\nWLAN_Security\nShenzhen Skyworth - Multiple Vulnerabilities in RN510 Wireless Mesh Devices (PoCs)\n1. Information Disclosure (CVE-2021-25326)\nhttps://packetstormsecurity.com/files/162455/KSA-Dev-0012.txt\n2. Authenticated XSRF (CVE-2021-25327)\nhttps://seclists.org/fulldisclosure/2021/May/6\n3. Authenticated\u00a0 Stack Overflow (CVE-2021-25328)\nhttps://seclists.org/fulldisclosure/2021/May/5", "creation_timestamp": "2026-09-02T01:04:40.337344Z"}, {"uuid": "c9838f80-9db8-4d9b-a9e4-48f21ec42c19", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21153", "type": "published-proof-of-concept", "source": "https://t.me/cissp/3121", "content": "Threat Research:\nAttack llvmpipe Graphics Driver from Chromium WebGL\nhttps://insinuator.net/2021/05/attack-llvmpipe-graphics-driver-from-chromium\n]-> CVE-2021-21153 (PoC for Ubuntu 20.04):\nhttps://bugs.chromium.org/p/chromium/issues/detail?id=1155974\n\nexploit\ud83d\ude01\nWindows 8.1 IE/Firefox RCE -> Sandbox Escape -> SYSTEM EoP Exploit Chain\nhttps://github.com/forrest-orr/DoubleStar\n\nCVE-2021-21551:\nDell BIOS Driver Privilege Escalation Vulnerability (PoC)\nhttps://labs.sentinelone.com/cve-2021-21551-hundreds-of-millions-of-dell-computers-at-risk-due-to-multiple-bios-driver-privilege-escalation-flaws\n\nWLAN_Security\nShenzhen Skyworth - Multiple Vulnerabilities in RN510 Wireless Mesh Devices (PoCs)\n1. Information Disclosure (CVE-2021-25326)\nhttps://packetstormsecurity.com/files/162455/KSA-Dev-0012.txt\n2. Authenticated XSRF (CVE-2021-25327)\nhttps://seclists.org/fulldisclosure/2021/May/6\n3. Authenticated\u00a0 Stack Overflow (CVE-2021-25328)\nhttps://seclists.org/fulldisclosure/2021/May/5", "creation_timestamp": "2026-09-11T07:00:04.517345Z"}]}