Insyde vulnerabilities
We track 52 vulnerabilities in Insyde products across 5 products. 52 are rated high or critical, and none are known to be exploited. The most recent was published on May 15, 2025.
Latest Insyde vulnerabilities
- 7.9 High severity
An issue was discovered in Insyde InsydeH2O kernel 5.2 before version 05.29.50, kernel 5.3…
An issue was discovered in Insyde InsydeH2O kernel 5.2 before version 05.29.50, kernel 5.3 before version 05.38.50, kernel 5.4 before version 05.46.50, kernel 5.5 before version 05.54.50, kernel 5.6 before version 05.61.50, and kernel 5.7 before version 05.70.
- 7.5 High severity
Insydeh2o: Buffer Over-read
An issue was discovered in Insyde InsydeH2O kernel 5.2 before version 05.29.50, kernel 5.3 before version 05.38.50, kernel 5.4 before version 05.46.50, kernel 5.5 before version 05.54.50, kernel 5.6 before version 05.61.50, and kernel 5.7 before version 05.70.
- 7.5 High severity
Insydeh2o: Buffer Over-read
An issue was discovered in Insyde InsydeH2O kernel 5.2 before version 05.29.50, kernel 5.3 before version 05.38.50, kernel 5.4 before version 05.46.50, kernel 5.5 before version 05.54.50, kernel 5.6 before version 05.61.50, and kernel 5.7 before version 05.70.
- 7.5 High severity
Insydeh2o: Buffer Over-read
An issue was discovered in Insyde InsydeH2O kernel 5.2 before version 05.29.50, kernel 5.3 before version 05.38.50, kernel 5.4 before version 05.46.50, kernel 5.5 before version 05.54.50, kernel 5.6 before version 05.61.50, and kernel 5.7 before version 05.70.
- 8.4 High severity
seg_windows_driver: Improper Control of Generation of Code
An issue in the component segwindrvx64.sys of Insyde Software Corp SEG Windows Driver v100.00.07.02 allows attackers to escalate privileges and execute arbitrary code via sending crafted IOCTL requests.
- 7.4 High severity
insydeh2o: Untrusted Pointer Dereference
A memory corruption vulnerability in SdHost and SdMmcDevice in Insyde InsydeH2O kernel 5.2 before 05.29.09, kernel 5.3 before 05.38.09, kernel 5.4 before 05.46.09, kernel 5.5 before 05.54.09, and kernel 5.6 before 05.61.09 could lead to escalating privileges i
- 7.4 High severity
insydeh2o: Release of Invalid Pointer or Reference
A memory corruption vulnerability in HddPassword in Insyde InsydeH2O kernel 5.2 before 05.29.09, kernel 5.3 before 05.38.09, kernel 5.4 before 05.46.09, kernel 5.5 before 05.54.09, and kernel 5.6 before 05.61.09 could lead to escalating privileges in SMM.
- 7.4 High severity
insydeh2o: Untrusted Pointer Dereference
A memory corruption vulnerability in StorageSecurityCommandDxe in Insyde InsydeH2O before kernel 5.2: IB19130163 in 05.29.07, kernel 5.3: IB19130163 in 05.38.07, kernel 5.4: IB19130163 in 05.46.07, kernel 5.5: IB19130163 in 05.54.07, and kernel 5.6: IB19130163
- 7.8 High severity
insydeh20: Out-of-bounds Write
An SMM memory corruption vulnerability in the SMM driver (SMRAM write) in CsmInt10HookSmm in Insyde InsydeH2O with kernel 5.0 through 5.5 allows attackers to send arbitrary data to SMM which could lead to privilege escalation.
- 9.8 Critical severity
insydeh20: Out-of-bounds Write
A stack buffer overflow vulnerability discovered in AsfSecureBootDxe in Insyde InsydeH2O with kernel 5.0 through 5.5 allows attackers to run arbitrary code execution during the DXE phase.
- 7.8 High severity
Insydeh2o: Improper Control of Generation of Code
An issue was discovered in SystemFirmwareManagementRuntimeDxe in Insyde InsydeH2O with kernel 5.0 through 5.5. The implementation of the GetImage method retrieves the value of a runtime variable named GetImageProgress, and later uses this value as a function p
- 7.5 High severity
Insydeh2o: Cleartext Storage of Sensitive Information
An issue was discovered in SysPasswordDxe in Insyde InsydeH2O with kernel 5.0 through 5.5. System password information could optionally be stored in cleartext, which might lead to possible information disclosure.
- 7.1 High severity
Insydecrpkg: Out-of-bounds Read
An issue was discovered in InsydeH2O. A malicious operating system can tamper with a runtime-writable EFI variable, leading to out-of-bounds memory reads and a denial of service. This is fixed in version 01.01.04.0016.
- 7.8 High severity
Insydeh2o: Externally Controlled Reference to a Resource in Another Sphere
An issue was discovered in Insyde InsydeH2O with kernel 5.2 through 5.5. The Save State register is not checked before use. The IhisiSmm driver does not check the value of a save state register before use. Due to insufficient input validation, an attacker can
- 8.8 High severity
Insydeh2o: Out-of-bounds Write
An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. It is possible to write to an attacker-controlled address. An attacker could invoke an SMI handler with a malformed pointer in RCX that overlaps SMRAM, resulting in SMM memory
- 8.4 High severity
Insydeh2o: Out-of-bounds Write
An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. IHISI subfunction execution may corrupt SMRAM. An attacker can pass an address in the RCX save state register that overlaps SMRAM, thereby coercing an IHISI subfunction handle
- 8.8 High severity
Insydeh2o: Out-of-bounds Write
An issue was discovered in ChipsetSvcSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. There is insufficient input validation in BIOS Guard updates. An attacker can induce memory corruption in SMM by supplying malformed inputs to the BIOS Guard SMI handler.
- 8.8 High severity
Insydeh2o: Out-of-bounds Write
An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. A malicious host OS can invoke an Insyde SMI handler with malformed arguments, resulting in memory corruption in SMM.
- 7.0 High severity
Insydeh2o: Time-of-check Time-of-use (TOCTOU) Race Condition
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the FvbServicesRuntimeDxe shared buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privi
- 7.0 High severity
Insydeh2o: Time-of-check Time-of-use (TOCTOU) Race Condition
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the VariableRuntimeDxe shared buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privileg
- 7.0 High severity
Insydeh2o: Time-of-check Time-of-use (TOCTOU) Race Condition
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the PnpSmm shared buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privileges. This att
- 7.0 High severity
Insydeh2o: Time-of-check Time-of-use (TOCTOU) Race Condition
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the SdHostDriver buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privileges. This atta
- 7.0 High severity
Insydeh2o: Time-of-check Time-of-use (TOCTOU) Race Condition
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the AhciBusDxe shared buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privileges. This
- 7.0 High severity
Insydeh2o: Time-of-check Time-of-use (TOCTOU) Race Condition
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the HddPassword shared buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privileges. Thi
- 7.0 High severity
Insydeh2o: Time-of-check Time-of-use (TOCTOU) Race Condition
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the FwBlockServiceSmm shared buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privilege
- 7.0 High severity
Insydeh2o: Time-of-check Time-of-use (TOCTOU) Race Condition
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the NvmExpressDxe buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privileges. This att
- 7.0 High severity
Insydeh2o: Time-of-check Time-of-use (TOCTOU) Race Condition
An issue was discovered in Insyde InsydeH2O with kernel 5.1 through 5.5. DMA attacks on the SdMmcDevice buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privileges. This attac
- 7.0 High severity
Insydeh2o: Time-of-check Time-of-use (TOCTOU) Race Condition
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the IdeBusDxe shared buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privileges. This
- 7.0 High severity
Insydeh2o: Time-of-check Time-of-use (TOCTOU) Race Condition
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the StorageSecurityCommandDxe shared buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of p
- 7.0 High severity
Insydeh2o: Time-of-check Time-of-use (TOCTOU) Race Condition
An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. The IhisiDxe driver uses the command buffer to pass input and output data. By modifying the command buffer contents with DMA after the input parameters have been checked but b
- 8.2 High severity
Kernel: Out-of-bounds Write
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. A stack buffer overflow vulnerability in the MebxConfiguration driver leads to arbitrary code execution. Control of a UEFI variable under the OS can cause this overflow when read by BIOS
- 7.8 High severity
Kernel: Out-of-bounds Write
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. A stack buffer overflow leads to arbitrary code execution in the SetupUtility driver on Intel platforms. An attacker can change the values of certain UEFI variables. If the size of the se
- 8.2 High severity
Kernel: Improper Restriction of Operations within the Bounds of a Memory Buffer
Use of a untrusted pointer allows tampering with SMRAM and OS memory in SdHostDriver and SdMmcDevice Use of a untrusted pointer allows tampering with SMRAM and OS memory in SdHostDriver and SdMmcDevice. This issue was discovered by Insyde during security revie
- 8.2 High severity
Kernel: Improper Check for Unusual or Exceptional Conditions
Incorrect pointer checks within the NvmExpressDxe driver can allow tampering with SMRAM and OS memory Incorrect pointer checks within the NvmExpressDxe driver can allow tampering with SMRAM and OS memory. This issue was discovered by Insyde during security rev
- 8.2 High severity
Kernel: Out-of-bounds Write
SMI functions in AhciBusDxe use untrusted inputs leading to corruption of SMRAM. SMI functions in AhciBusDxe use untrusted inputs leading to corruption of SMRAM. This issue was discovered by Insyde during security review. It was fixed in: Kernel 5.0: version 0
- 8.2 High severity
Kernel: Out-of-bounds Write
Manipulation of the input address in PnpSmm function 0x52 could be used by malware to overwrite SMRAM or OS kernel memory. Function 0x52 of the PnpSmm driver is passed the address and size of data to write into the SMBIOS table, but manipulation of the address
- 8.2 High severity
Kernel: Out-of-bounds Write
Initialization function in PnpSmm could lead to SMRAM corruption when using subsequent PNP SMI functions Initialization function in PnpSmm could lead to SMRAM corruption when using subsequent PNP SMI functions. This issue was discovered by Insyde engineering d
- 7.5 High severity
Kernel: Time-of-check Time-of-use (TOCTOU) Race Condition
In UsbCoreDxe, tampering with the contents of the USB working buffer using DMA while certain USB transactions are in process leads to a TOCTOU problem that could be used by an attacker to cause SMRAM corruption and escalation of privileges The UsbCoreDxe modul
- 8.2 High severity
Kernel: Improper Restriction of Operations within the Bounds of a Memory Buffer
In UsbCoreDxe, untrusted input may allow SMRAM or OS memory tampering Use of untrusted pointers could allow OS or SMRAM memory tampering leading to escalation of privileges. This issue was discovered by Insyde during security review. It was fixed in: Kernel 5.
- 7.0 High severity
Kernel: Time-of-check Time-of-use (TOCTOU) Race Condition
DMA transactions which are targeted at input buffers used for the NvmExpressDxe software SMI handler could cause SMRAM corruption through a TOCTOU attack. DMA transactions which are targeted at input buffers used for the software SMI handler used by the NvmExp