CVE-2026-21018

CVSS 6.8 MEDIUMEPSS 0.2%

Vexday Risk Score

33Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

CVSS 6.8EPSS 0.2%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Lifecycle

13 May 2026Published on NVD

23 Jun 2026Public PoC

Recommendation: Plan a near-term fix — a public PoC already exists.

Out-of-bounds write in SveService prior to SMR May-2026 Release 1 allows local privileged attackers to execute arbitrary code.

CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

Affected products

public PoCs found — 1

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References