# Insyde vulnerabilities

Source: https://junglewise.ai/threats/vendors/insyde  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 10 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/vendors/insyde.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 7 vulnerabilities in Insyde: 0 in the last 7 days and 6 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-6485, was published on 9 September 2026. Nothing was published in the last eight weeks. 1 technology has a page of its own.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 6
- All time: 7 (0 critical, 0 exploited in the wild)

## About Insyde

Software company that develops firmware and software solutions for computing devices.

## Latest Insyde vulnerabilities

- [CVE-2026-6485: Insyde InsydeH2O Secure Boot bypass via embedded shell](https://junglewise.ai/threats/cve-2026-6485-insyde-insydeh2o-secure-boot-bypass-via-embedded-shell) (high, CVSS 8.2, published 9 Sep 2026)
- [CVE-2026-12855: Insyde InsydeH2O memory boundary validation vulnerability](https://junglewise.ai/threats/cve-2026-12855-insyde-insydeh2o-memory-boundary-validation-vulnerability) (high, CVSS 8.2, published 9 Sep 2026)
- [CVE-2021-43614: Insyde InsydeH2O buffer overflow in PlatformLangCodes UEFI variable handling](https://junglewise.ai/threats/cve-2021-43614-insyde-insydeh2o-buffer-overflow-in-platformlangcodes-uefi) (medium, CVSS 6.7, published 3 Sep 2026)
- [CVE-2021-43613: Insyde InsydeH2O password hash exposure in SysPasswordDxe](https://junglewise.ai/threats/cve-2021-43613-insyde-insydeh2o-password-hash-exposure-in-syspassworddxe) (medium, CVSS 6.5, published 3 Sep 2026)
- [CVE-2021-38489: Insyde InsydeH2O plaintext HDD password storage in UEFI variable](https://junglewise.ai/threats/cve-2021-38489-insyde-insydeh2o-plaintext-hdd-password-storage-in-uefi-variable) (high, CVSS 8.2, published 3 Sep 2026)
- [CVE-2026-9805: Insyde InsydeH2O buffer overflow in SMM IHISI FMTSWriteUseIntelLib](https://junglewise.ai/threats/cve-2026-9805-insyde-insydeh2o-buffer-overflow-in-smm-ihisi-fmtswriteuseintellib) (low, CVSS 2.7, published 26 Aug 2026)
- [CVE-2026-6484: Insyde InsydeH2O UEFI verified boot bypass](https://junglewise.ai/threats/cve-2026-6484-insyde-insydeh2o-uefi-verified-boot-bypass) (high, CVSS 8.2, published 12 Aug 2026)

## Most severe Insyde vulnerabilities

- [CVE-2026-6484: Insyde InsydeH2O UEFI verified boot bypass](https://junglewise.ai/threats/cve-2026-6484-insyde-insydeh2o-uefi-verified-boot-bypass) (high, CVSS 8.2, published 12 Aug 2026)
- [CVE-2026-6485: Insyde InsydeH2O Secure Boot bypass via embedded shell](https://junglewise.ai/threats/cve-2026-6485-insyde-insydeh2o-secure-boot-bypass-via-embedded-shell) (high, CVSS 8.2, published 9 Sep 2026)
- [CVE-2026-12855: Insyde InsydeH2O memory boundary validation vulnerability](https://junglewise.ai/threats/cve-2026-12855-insyde-insydeh2o-memory-boundary-validation-vulnerability) (high, CVSS 8.2, published 9 Sep 2026)
- [CVE-2021-38489: Insyde InsydeH2O plaintext HDD password storage in UEFI variable](https://junglewise.ai/threats/cve-2021-38489-insyde-insydeh2o-plaintext-hdd-password-storage-in-uefi-variable) (high, CVSS 8.2, published 3 Sep 2026)
- [CVE-2021-43614: Insyde InsydeH2O buffer overflow in PlatformLangCodes UEFI variable handling](https://junglewise.ai/threats/cve-2021-43614-insyde-insydeh2o-buffer-overflow-in-platformlangcodes-uefi) (medium, CVSS 6.7, published 3 Sep 2026)
- [CVE-2021-43613: Insyde InsydeH2O password hash exposure in SysPasswordDxe](https://junglewise.ai/threats/cve-2021-43613-insyde-insydeh2o-password-hash-exposure-in-syspassworddxe) (medium, CVSS 6.5, published 3 Sep 2026)
- [CVE-2026-9805: Insyde InsydeH2O buffer overflow in SMM IHISI FMTSWriteUseIntelLib](https://junglewise.ai/threats/cve-2026-9805-insyde-insydeh2o-buffer-overflow-in-smm-ihisi-fmtswriteuseintellib) (low, CVSS 2.7, published 26 Aug 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 1 | 0 | 0 |
| 31 Aug 2026 | 3 | 0 | 0 |
| 7 Sep 2026 | 2 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Insyde technologies

- [InsydeH2O](https://junglewise.ai/threats/technologies/insydeh2o): 7 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Insyde vulnerabilities", https://junglewise.ai/threats/vendors/insyde, 10 November 2026.