CVE-2026-108443
Off-by-one error in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
CVSS
8.8
High
EPSS
0.4%
p37
KEV
—
Exploit Today
11
0-100
Published: Oct 15, 2026 · Last modified: Oct 19, 2026 · CWE-193
0.4%EPSS · 30 days0.4%
2026-10-162026-10-19
Off-by-one error in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
CVECVSSEPSSKEVRExploitTitleMod.
CVE-2026-127274.3 MED—
——0IBM MQ could allow an authenticated attacker to cause potential process instability due to an off-by-one buffer overflow when processing specially crafted object names.18hCVE-2026-1112736.1 MED3.2%
——1unarr through 1.1.1 contains an off-by-one heap-based buffer overflow in tar_get_name() in tar/parse-tar.c, reachable through the ar_entry_get_name() API. Attackers can supply a crafted TAR archive with a full ustar prefix and name to write a NUL byte past the allocation, corrupting heap memory and crashing the process.4dCVE-2026-1013026.5 MED33.9%
——10TLS 1.3 embeds the actual record type as the last non-zero byte of the decrypted payload, optionally followed by zero padding. The code which searches for the inner record type had an off-by-one bug which could be triggered by an invalid frame, leading to an underflow followed by an unconditional NULL pointer dereference, causing a kernel panic.
A remote TLS 1.3 peer can send a specially crafted record to trigger a kernel panic, resulting in a Denial of Service (DoS).15hCVE-2026-1106043.6 LOW11.8%
——4Mini-XML 4.0.0 through 4.0.6 contains an off-by-one stack out-of-bounds write in mxml_strtod() when the locale decimal point is not '.'. Attackers can supply XML with a 63-digit REAL value followed by '.' to write a NUL byte past the 64-byte stack buffer, corrupting stack memory or crashing the process.6dCVE-2026-977418.8 HIG55.2%
——17Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.5dCVE-2026-1028578.8 HIG55.2%
——17Heap-based buffer overflow in Microsoft Office Visio allows an unauthorized attacker to execute code over a network.5d