EMERGENCY
CVE-2023-34048
9.8
VMware vCenter Server contains an out-of-bounds write in the DCERPC protocol implementation allowing unauthenticated remote code execution, exploited by Chinese APT groups for ESXi infrastructure compromise.
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EMERGENCY
CVE-2023-4966
9.4
Citrix NetScaler ADC and Gateway contain an information disclosure vulnerability known as 'CitrixBleed' that leaks sensitive session tokens from memory, enabling authenticated session hijacking at massive scale.
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ACT NOW
CVE-2023-44487
7.5
Denial of service against HTTP/2 server implementations allows remote unauthenticated attackers to exhaust server resources by rapidly opening and immediately canceling (RST_STREAM) large numbers of streams over a single connection, a technique dubbed the 'Rapid Reset' attack. The flaw is confirmed actively exploited (CISA KEV) following large-scale weaponization observed August through October 2023, with publicly available exploit code and an EPSS score of 94.45% placing it in the 100th percentile for likelihood of exploitation. Virtually every major HTTP/2 stack - including nghttp2, Netty, Envoy, and Eclipse Jetty - is affected.
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ACT NOW
CVE-2023-4911
7.8
Local privilege escalation in the GNU C Library (glibc) dynamic loader ld.so allows unprivileged local users on affected Linux distributions to gain root by abusing a heap buffer overflow when ld.so processes the GLIBC_TUNABLES environment variable during execution of SUID binaries. The flaw is confirmed actively exploited (CISA KEV) with publicly available exploit code, and the EPSS score of 71.53% (99th percentile) reflects very high exploitation likelihood across Linux estates.
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