CVE-2023-21689
Microsoft Protected Extensible Authentication Protocol (PEAP) Remote Code Execution Vulnerability
CVSS
9.8
Critical
EPSS
26.7%
p98
KEV
—
Exploit Today
29
0-100
Published: Feb 14, 2023 · Last modified: Aug 19, 2026 · CWE-122
26.5%EPSS · 30 days26.7%
2026-10-022026-10-29
Microsoft Protected Extensible Authentication Protocol (PEAP) Remote Code Execution Vulnerability
CVECVSSEPSSKEVRExploitTitleMod.
CVE-2026-1197276.5 MED—
———A flaw was found in GStreamer's gst-plugins-bad H.265 video parser. When parsing a specially crafted H.265 bitstream containing a Screen Content Coding (SCC) extension with certain palette predictor initializer settings, an integer underflow in the upper-bound computation allows the parser to accept an out-of-range value for the number of palette predictor entries. This causes the parser to write beyond the end of a fixed-size array, resulting in memory corruption and an application crash. Successful exploitation requires an attacker to provide a malformed H.265 media file to a vulnerable application, and is limited to a denial-of-service impact.5hCVE-2026-1101335.8 MED—
——0A flaw was found in Ghostscript. When processing a specially crafted TrueType font or document embedding one, an accounting error during font rendering can bypass buffer size checks, triggering a heap-based buffer overflow. A remote attacker could exploit this by enticing a victim or automated service to open the malicious content, potentially resulting in a Denial of Service (DoS) crash or arbitrary code execution.7hCVE-2026-95367.5 HIG—
——0A heap-based buffer overflow vulnerability exists in the vtkWindBladeReader FindVariableOffsets functionality of vtk (version(s): 9.6.1). A specially crafted .wind can lead to a buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.6hCVE-2026-961998.8 HIG—
——0Heap-based buffer overflow in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.6hCVE-2026-961988.8 HIG—
——0Heap-based buffer overflow in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.6hCVE-2026-858978.8 HIG—
——0Heap-based buffer overflow in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.6h