CVE-2026-21055

CVSS 8.5 HIGHEPSS 0.1%

Vexday Risk Score

41Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

Exploit maturity

Proof of concept

Popular PoC on GitHub (1 stars) — exploitation code widely available.

CVSS 8.5EPSS 0.1%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Lifecycle

10 Jul 2026Published on NVD

12 Jul 2026Public PoC

Weaponization speed

2 daysto first PoC

Weaponized quickly — attackers prioritized this vulnerability. Patch urgently.

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

Improper export of android application components in Bixby prior to version 4.0.70.8 allows local attackers to execute arbitrary commands with Bixby privilege.

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

Affected products

Samsung Mobile · Bixby

public PoCs found — 1

githubgithub.com/Hunt-Benito/samsung-bixby-command-execution-cve-2026-21055-improper-component-export★ 1

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

References

https://security.samsungmobile.com/serviceWeb.smsb?year=2026&month=07