01 Record
CVE-2026-18451
Supermicro BMC's iKVM feature is vulnerable to KVM session hijacking due to a predictable time-seeded launch token
LowPUBLISHEDCNA: Supermicro
CNA base score3.1 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
02 Description
Supermicro BMC's iKVM feature is vulnerable to KVM session hijacking due to a predictable time-seeded launch token
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.15% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 4.2% of scored records. A rank, not a probability.
- NVD base score
- 3.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
- NVD analysis status
- Awaiting Analysis. NVD last modified this record on 2026-10-27.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-10-27 07:51Z2 DAYS AGO
- Last updated
- 2026-10-27 07:51Z2 DAYS AGO
- Reserved
- 2026-07-31
- Assigning CNA
- Supermicro
- Record state
- PUBLISHED
- Severity
- Low (CVSS 3.1)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
- Weaknesses
- CWE-337Predictable Seed in Pseudo-Random Number Generator (PRNG)Variant
- Data version
- 5.2
- Document digest
- 7f5e64189ea454263574725b2757ccde3c1c55a3b4a5ce40ba84e61d0af28e69
05 Affected products
VendorProductVersionsPlatforms
06 References
- www.supermicro.comhttps://www.supermicro.com/en/support/security_BMC_IPMI_Oct_2026_1