Quick answers
- Is CVE-2026-18449 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-18449 being exploited in the wild.
- How severe is CVE-2026-18449?
- High severity, with a CVSS score of 7.5, published 27 October 2026.
- Which products and versions are affected?
- Supermicro BMC Firmware Multiple X13, H13, H14, X12, H12, A3 series motherboards; see advisory for complete list and fixed versions per model.
- Is there a fix for CVE-2026-18449?
- Yes: fixed in Varies by motherboard model; see Supermicro advisory for specific fixed firmware versions per model (e.g., MBD-X13DEG-QT 01.08.16, MBD-X13DEG-R 01.13.11, etc.). Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-18449 attacked?
- It is attacked over the network, in device firmware.
- Am I affected by CVE-2026-18449?
- Check whether you run Supermicro BMC Firmware at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: Varies by motherboard model; see Supermicro advisory for specific fixed firmware versions per model (e.g., MBD-X13DEG-QT 01.08.16, MBD-X13DEG-R 01.13.11, etc.)
Technical details
The SMCRAKP password hashing implementation contains a hardcoded key, allowing an attacker to derive password hashes offline. This is a network-based attack requiring no prior authentication or user interaction. Compromise enables attacker to obtain BMC administrative credentials and execute arbitrary commands on the system.
Affected products
- Supermicro BMC Firmware Multiple X13, H13, H14, X12, H12, A3 series motherboards; see advisory for complete list and fixed versions per model
Timeline
- 2026-10-27: disclosed