CVE-2022-41777

nadesiko3 allows remote attacker to inject invalid value to decodeURIComponent of nako3edit

7.5 HighFix available

Improper check or handling of exceptional conditions vulnerability in Nako3edit, editor component of nadesiko3 (PC Version) v3.3.74 and earlier allows a remote attacker to inject an invalid value to decodeURIComponent of nako3edit, which may lead the server to crash.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

1.60%Up 0.5 points since Dec 6, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2022-41777
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-703
Updated: 2026-11-02

CVE List 7.5

Record: CVE-2022-41777
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-703
Updated: 2026-11-02

EUVDEUVD-2022-7765 7.5

Record: EUVD-2022-7765
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-x2jx-w3wm-9p3p 5.3

nadesiko3 allows remote attacker to inject invalid value to decodeURIComponent of nako3edit

Nako3edit is the editor component of Nadeshiko 3, a programming language developed based on Japanese. Improper check or handling of exceptional conditions in Nako3edit v3.3.74 and earlier allows a remote attacker to inject an invalid value to decodeURIComponent of nako3edit, which may lead the server to crash.

Record: GHSA-x2jx-w3wm-9p3p
CVSS 3.0: 5.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness: CWE-703, CWE-755
Updated: 2026-11-02

OSV 7.5

Record: CVE-2022-41777
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVGHSA-x2jx-w3wm-9p3p 5.3

nadesiko3 allows remote attacker to inject invalid value to decodeURIComponent of nako3edit

Record: GHSA-x2jx-w3wm-9p3p
CVSS 3.0: 5.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness: CWE-703, CWE-755
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`nadesiko3` npm	before 3.3.75	3.3.75

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-41777 is a high vulnerability (CVSS 7.5) in Kujirahand Nadesiko3, published December 5, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.60%, the 76th percentile. Fixed in nadesiko3 3.3.75.