CVE-2026-40669
An off-by-one error in AMD Secure Encrypted Virtualization (SEV) firmware could allow an attacker with hypervisor access to corrupt the Reve
CVSS
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No CVSS
EPSS
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KEV
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Exploit Today
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0-100
Published: Nov 10, 2026 · Last modified: Nov 10, 2026 · CWE-193
Not enough EPSS history yet.
An off-by-one error in AMD Secure Encrypted Virtualization (SEV) firmware could allow an attacker with hypervisor access to corrupt the Reverse Map Table (RMP) table, potentially resulting in loss of guest memory integrity.
CVECVSSEPSSKEVRExploitTitleMod.
CVE-2026-1187268.8 HIG—
——0Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.10hCVE-2026-1137715.5 MED—
——0Off-by-one error in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.9hCVE-2026-1100466.5 MED—
——0Off-by-one error in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.9hCVE-2026-61469——
——0Off-by-one error in the MigTD's vmcall_raw transport for the Intel(R) TDX Migration Trust Domain (MigTD) within Ring 0: Hypervisor may allow a denial of service. System software adversary with an unauthenticated user combined with a low complexity attack may enable data corruption. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (low) and availability (low) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.8hCVE-2026-88708—6.8%
——2An
off-by-one error in certain ASUS Router firmware
allows
an unauthenticated nearby user to send a packet with a specific header
length, potentially overwriting memory and causing the
affected service to crash.
Refer to the ' Security Update for ASUS Router Firmware ' section on the ASUS Security Advisory for more information.10hCVE-2026-1252577.0 HIG3.6%
——1FFmpeg through 9.0.2 contains an off-by-one heap overflow vulnerability in get_exponent_dynamic() in libavcodec/nellymoserenc.c that allows writing one element past the opt and path allocations. Attackers can supply crafted audio to applications encoding Nellymoser with trellis enabled, causing idx to equal OPT_SIZE and overwrite adjacent heap memory.8h