CVE Watch13 ago 2026

CVE-2018-8174

Microsoft Windows VBScript Engine Out-of-Bounds Write Vulnerability

CVSS

7.5

Alto

EPSS

88.3%

p100

KEV

SÍ

15 feb 2022

Exploit Today

0-100

Publicado: 9 may 2018 · Última mod.: 13 ago 2026 · CWE-787

EPSS · 30d

88.3%EPSS · 30 días88.3%

2026-09-172026-10-15

Ficha del catálogo KEV

Producto

Microsoft / Windows

Vulnerabilidad

Microsoft Windows VBScript Engine Out-of-Bounds Write Vulnerability

Añadido a KEV

15 feb 2022

Remediar antes de

15 ago 2022

Uso conocido en ransomware

Sí

Descripción resumida

A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka "Windows VBScript Engine Remote Code Execution"

Acción requerida

Apply updates per vendor instructions.

Notas

https://nvd.nist.gov/vuln/detail/CVE-2018-8174

Descripción técnica

A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka "Windows VBScript Engine Remote Code Execution Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.

Referencias oficiales

CVEs relacionados

CVECVSSEPSSKEVRExplotTítuloVis.

CVE-2026-111458—

—

———The fanx_fingerprint function in ssl/sslxprint.c of ssldump allocates a heap buffer for formatting FAN/1 X.509 certificate fingerprints. The allocation size is computed as strlen(b64) + strlen(hex) + 31, but the format string "fan1:x509:server:passive:%s:sha256:%s" contains 33 fixed characters in addition to the two variable-length fields and a null terminator, requiring strlen(b64) + strlen(hex) + 34 bytes. This miscalculation results in a 3-byte heap-based buffer overflow on every invocation of the function with valid inputs. The overflow occurs because sprintf writes the full formatted string into the undersized heap buffer without bounds checking. An attacker who can supply a crafted pcap file containing a TLS X.509 certificate to a user running ssldump with FAN/1 fingerprinting enabled (for example with the -j -N options) can trigger the overflow. The resulting heap corruption may lead to denial of service through a crash or, in a worst-case scenario, arbitrary code execution in the context of the user running ssldump. The vulnerability is deterministic and requires no special privileges beyond the ability to provide input to the tool.6h CVE-2026-1113828.8 ALT

—

———FreeRDP before 3.32.0 contains a client-side heap out-of-bounds write vulnerability in general_LumaToYUV444 and general_ChromaV2ToYUV444 that allows malicious RDP servers to corrupt client memory. Attackers can send RDPGFX AVC444 or AVC444v2 frames with odd-height region rects ending at surface height to write past U/V planes, enabling heap corruption and potential code execution.9h CVE-2026-890625.5 MED

—

———A potential out-of-bounds write vulnerability was reported in the Lenovo Energy Management driver that could allow a local authenticated user to cause a blue screen error.12h CVE-2026-1112807.4 ALT

—

———snap7 through 1.4.3 contains an out-of-bounds write vulnerability in TSnap7MicroClient::opReadArea() that allows malicious S7 peers to overflow client buffers via an unchecked DataLength field. Rogue or impersonated PLCs can return crafted ReadVar responses causing memcpy of up to 65535 bytes into caller buffers, crashing SCADA, HMI, or gateway processes and corrupting memory.14h CVE-2026-1112756.1 MED

—

———nifti_clib through 3.0.1 contains a stack-based out-of-bounds read and write vulnerability in nifti_convert_n2hdr2nim() because the NIfTI-2 dim[0] value is never range-checked. Attackers can supply a crafted 540-byte NIfTI-2 header read via nifti_image_read() to crash applications or corrupt stack memory.14h CVE-2026-1112706.1 MED

—

———libmodplug through 0.8.9.1 contains a heap-based out-of-bounds write in CSoundFile::ReadDSM() in src/load_dsm.cpp because nPat is never checked against MAX_PATTERNS. Attackers can supply a crafted DSM file with over 240 PATT chunks or a wrapping patt_len value to corrupt heap memory and crash the consuming process.14h