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Description

Nord VPN 6.14.31 contains a denial of service vulnerability that allows unauthenticated attackers to crash the application by submitting an excessively long string in the password field. Attackers can paste a buffer of repeated characters into the password input field to trigger an application crash when attempting to authenticate.

PUBLISHED Reserved 2026-05-25 | Published 2026-05-25 | Updated 2026-05-26 | Assigner VulnCheck




HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Problem types

Memory Allocation with Excessive Size Value

Product status

Any version
affected

Credits

L0RD (borna nematzadeh) finder

References

www.exploit-db.com/exploits/45304 (ExploitDB-45304) exploit

nordvpn.com/download/ (Product Reference) product

www.vulncheck.com/...pn-denial-of-service-via-password-field (VulnCheck Advisory: Nord VPN 6.14.31 Denial of Service via Password Field) third-party-advisory

cve.org (CVE-2018-25368)

nvd.nist.gov (CVE-2018-25368)

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