CVE-2023-44689

Name: CVE-2023-44689
Creator: NVD / NIST
Published: 2023-10-11T01:15:08.78+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.36%

Last modified Jun 17, 2026

CVE-2023-44689 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. e-Gov Client Application (Windows version) versions prior to 2.1.1.0 and e-Gov Client Application (macOS version) versions prior to 1.1.1.0 are vulnerable to improper authorization in handler for custom URL scheme. A crafted URL may direct the product to access an arbitrary website. EPSS estimates a 0.36% chance of exploitation in the next 30 days.

Description

e-Gov Client Application (Windows version) versions prior to 2.1.1.0 and e-Gov Client Application (macOS version) versions prior to 1.1.1.0 are vulnerable to improper authorization in handler for custom URL scheme. A crafted URL may direct the product to access an arbitrary website. As a result, the user may become a victim of a phishing attack.

Metrics

CVSS 3.1

4.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

EPSS Probability

0.36%

27.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-862

Affected Software

Vendor	Product	Versions
E-Gov	E-Gov	< 1.1.1.0
E-Gov	E-Gov	< 2.1.1.0

References

https://jvn.jp/en/jp/JVN15808274/Third Party Advisory
https://shinsei.e-gov.go.jp/contents/news/2023-03-12t1022040900_1318.htmlRelease Notes
https://jvn.jp/en/jp/JVN15808274/Third Party Advisory
https://shinsei.e-gov.go.jp/contents/news/2023-03-12t1022040900_1318.htmlRelease Notes

Timeline

Published: Oct 11, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-44689?

How severe is CVE-2023-44689?

CVE-2023-44689 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.36% probability of exploitation in the next 30 days.

How do I fix CVE-2023-44689?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-44689?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST