CVE-2021-39243

PoC —

CVSS 3.1

6.5 medium

EPSS

<1%p44

Published

Aug 23, 2021 (Aug 23, 2021)

Modified

Jun 17, 2026

Description

Cross-Site Request Forgery (CSRF) exists on Altus Nexto, Nexto Xpress, and Hadron Xtorm devices via any CGI endpoint. This affects Nexto NX3003 1.8.11.0, Nexto NX3004 1.8.11.0, Nexto NX3005 1.8.11.0, Nexto NX3010 1.8.3.0, Nexto NX3020 1.8.3.0, Nexto NX3030 1.8.3.0, Nexto NX5100 1.8.11.0, Nexto NX5101 1.8.11.0, Nexto NX5110 1.1.2.8, Nexto NX5210 1.1.2.8, Nexto Xpress XP300 1.8.11.0, Nexto Xpress XP315 1.8.11.0, Nexto Xpress XP325 1.8.11.0, Nexto Xpress XP340 1.8.11.0, and Hadron Xtorm HX3040 1.7.58.0.

Vendors: altus
Products: nexto nx3003 firmware, nexto nx3004 firmware, nexto nx3005 firmware, nexto nx3010 firmware, nexto nx3020 firmware, nexto nx3030 firmware, nexto nx5100 firmware, nexto nx5101 firmware, nexto nx5110 firmware, nexto nx5210 firmware, nexto xpress xp300 firmware, nexto xpress xp315 firmware
Weakness: CWE-352
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (0.5%)

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