CVE-2026-45653
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVSS
7.0
Alto
EPSS
0.3%
p17
KEV
—
Exploit Today
5
0-100
Publicado: 9 jun 2026 · Última mod.: 9 jul 2026 · CWE-122 · CWE-416
0.3%EPSS · 30 días0.3%
2026-06-302026-07-20
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVECVSSEPSSKEVRExplotTítuloVis.
CVE-2026-429458.1 ALT99.1%
——30NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module. This vulnerability exists when the rewrite directive is followed by a rewrite, if, or set directive and an unnamed Perl-Compatible Regular Expression (PCRE) capture (for example, $1, $2) with a replacement string that includes a question mark (?). An unauthenticated attacker along with conditions beyond its control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.6dCVE-2024-300809.8 CRÍ98.6%
——30Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability10hCVE-2026-276548.2 ALT97.4%
——29NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_dav_module module that might allow an attacker to trigger a buffer overflow to the NGINX worker process; this vulnerability may result in termination of the NGINX worker process or modification of source or destination file names outside the document root. This issue affects NGINX Open Source and NGINX Plus when the configuration file uses DAV module MOVE or COPY methods, prefix location (nonregular expression location configuration), and alias directives. The integrity impact is constrained because the NGINX worker process user has low privileges and does not have access to the entire system. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.6dCVE-2024-300857.8 ALT96.4%
——29Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability10hCVE-2025-217607.8 ALT94.7%
——28In the Linux kernel, the following vulnerability has been resolved:
ndisc: extend RCU protection in ndisc_send_skb()
ndisc_send_skb() can be called without RTNL or RCU held.
Acquire rcu_read_lock() earlier, so that we can use dev_net_rcu()
and avoid a potential UAF.7dCVE-2026-335267.5 ALT94.7%
——28Squid is a caching proxy for the Web. Prior to version 7.5, due to heap Use-After-Free, Squid is vulnerable to Denial of Service when handling ICP traffic. This problem allows a remote attacker to perform a reliable and repeatable Denial of Service attack against the Squid service using ICP protocol. This attack is limited to Squid deployments that explicitly enable ICP support (i.e. configure non-zero `icp_port`). This problem _cannot_ be mitigated by denying ICP queries using `icp_access` rules. Version 7.5 contains a patch.6d