42
30
55
42
30
42
42
30
30
30
60
55
60
55
55
55
30
30
30
55
55
30
57
42
30
60
60
ZDI-26-648: (Pwn2Own) OpenAI Codex External Control of System or Configuration Setting Remote Code Execution Vulnerability
ZDI published a Pwn2Own advisory for CVE-2026-19590, enabling remote code execution in OpenAI's Codex agent via system or configuration control.
Zero Day Initiative advisory ZDI-26-648 documents an External Control of System or Configuration Setting vulnerability in OpenAI Codex, demonstrated at Pwn2Own. A remote attacker could achieve arbitrary code execution, with user interaction required such as opening malicious content. The flaw is tracked as CVE-2026-19590 with a CVSS rating of 7.8. No exploitation in the wild is reported.
52
ZDI-26-562: (Pwn2Own) Home Assistant Green mDNS Server-Side Request Forgery Vulnerability
ZDI-26-562 details an unauthenticated, network-adjacent SSRF in the Home Assistant Green mDNS server, rated CVSS 5.4 and originally demonstrated at Pwn2Own.
A server-side request forgery in Home Assistant Green's mDNS service lets network-adjacent attackers initiate arbitrary server-side requests without authentication. The Zero Day Initiative assigned the flaw a CVSS 5.4 rating under advisory ZDI-26-562. The finding originated from Pwn2Own, and no exploitation in the wild is reported.
25
ZDI-26-540: (Pwn2Own) Microsoft Windows win32kfull Use-After-Free Information Disclosure Vulnerability
ZDI discloses CVE-2026-65776, a Pwn2Own win32kfull use-after-free in Windows enabling local information disclosure, CVSS 6.5.
ZDI-26-540 describes a use-after-free vulnerability in Microsoft Windows win32kfull, demonstrated at Pwn2Own, that allows local attackers to disclose sensitive information. Exploitation requires the attacker to first execute low-privileged code on the target system. ZDI assigned a CVSS score of 6.5, tracked as CVE-2026-65776.
30
ZDI-26-534: (Pwn2Own) Microsoft Exchange Capture-Replay Authentication Bypass Vulnerability
Pwn2Own-demoed CVE-2026-62911 capture-replay authentication bypass in Microsoft Exchange allows unauthenticated remote attacks, CVSS 8.1.
ZDI-26-534 describes a capture-replay authentication bypass vulnerability in Microsoft Exchange, demonstrated at Pwn2Own, allowing remote attackers to bypass authentication without credentials. ZDI assigned a CVSS score of 8.1, and the flaw is tracked as CVE-2026-62911. Exchange servers are widely deployed enterprise mail infrastructure.
55
ZDI-26-541: (Pwn2Own) Microsoft Windows win32kfull Use-After-Free Local Privilege Escalation Vulnerability
ZDI discloses a Pwn2Own Windows win32kfull use-after-free local privilege escalation flaw (CVE-2026-65775, CVSS 8.8) requiring existing low-privileged code execution.
ZDI advisory ZDI-26-541 describes a use-after-free in Microsoft Windows win32kfull that allows local attackers to escalate privileges. Exploitation requires the attacker to first execute low-privileged code on the target system. The flaw carries a CVSS score of 8.8 and is assigned CVE-2026-65775; it was demonstrated at Pwn2Own.
30
ZDI-26-536: (Pwn2Own) Microsoft Windows http.sys Integer Overflow Local Privilege Escalation Vulnerability
ZDI discloses CVE-2026-62735, a Pwn2Own-demonstrated Windows http.sys integer overflow (CVSS 8.8) enabling local privilege escalation.
ZDI advisory ZDI-26-536 describes an integer overflow in Microsoft Windows http.sys, tracked as CVE-2026-62735 with a CVSS score of 8.8. The flaw was demonstrated at Pwn2Own and allows local attackers to escalate privileges on affected Windows installations. Exploitation requires first obtaining the ability to execute low-privileged code on the target system.
40
ZDI-26-537: (Pwn2Own) Microsoft Windows storport Integer Overflow Local Privilege Escalation Vulnerability
ZDI discloses a Pwn2Own Windows storport integer overflow local privilege escalation flaw (CVE-2026-65814, CVSS 8.8) requiring existing low-privileged code execution.
ZDI advisory ZDI-26-537 describes an integer overflow in the Microsoft Windows storport driver that allows local attackers to escalate privileges. Exploitation requires the attacker to first obtain the ability to execute low-privileged code on the target system. The vulnerability has a CVSS rating of 8.8 and is tracked as CVE-2026-65814; it originated from Pwn2Own.
28
ZDI-26-538: (Pwn2Own) Microsoft Exchange Improper Authorization Privilege Escalation Vulnerability
ZDI discloses a Pwn2Own Microsoft Exchange privilege-escalation flaw (CVE-2026-62911, CVSS 8.8) where the required authentication can be bypassed.
ZDI advisory ZDI-26-538 describes CVE-2026-62911, an improper authorization vulnerability in Microsoft Exchange rated CVSS 8.8. Remote attackers can escalate privileges, and while authentication is nominally required, the existing authentication mechanism can be bypassed. The vulnerability was demonstrated at Pwn2Own.
55
30
60
42
Google Warns of CVE-2024-7965 Chrome Security Flaw Under Active Exploitation
60
47