Chcnav - P5E GNSS Authentication bypass

published 2022-07-18 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-52454

cvss: 5.9; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 36%
public exploits: 0; none known

The server checks the user's cookie in a non-standard way, and a value is entered in the cookie value name of the status and its value is set to true to bypass the identification with the system using a username and password.

Exploit prediction

0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.9	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Chcnav Chcnav - P5E GNSS

Classification

Weakness

CWE-288 Authentication Bypass Using an Alternate Path or Channel
CWE-287 Improper Authentication

References

gov.il /en/Departments/faq/cve_advisories
third-party-advisory

Sources

CVE List CVE-2022-30623
NVD CVE-2022-30623

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary