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CVE-2023-44689

16
FAUCET Score

CVE-2023-44689 describes an improper authorization vulnerability in the e-Gov Client Application for Windows (versions prior to 2.1.1.0) and macOS (versions prior to 1.1.1.0). This flaw allows a specially crafted URL to redirect the application to an arbitrary website, potentially leading to phishing attacks against users. The vulnerability has a CVSS v3.1 score of 4.3 (Medium), indicating a network-based attack requiring user interaction, with low impact on integrity and no impact on confidentiality or availability. Its EPSS score is very low, suggesting a minimal likelihood of exploitation. Currently, there is no evidence of active exploitation, nor are there any public exploit modules available in Metasploit, Nuclei, or ExploitDB. The vulnerability has garnered no community discussion or media coverage, further indicating a low level of attention and perceived threat.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.1.1.0CPE matchmatch criteria
cpe:2.3:a:e-gov:e-gov:*:*:*:*:*:macos:*:*
< 2.1.1.0CPE matchmatch criteria
cpe:2.3:a:e-gov:e-gov:*:*:*:*:*:windows:*:*

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.36%
Probability of exploitation in next 30 days
EPSS Percentile
28.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0036 is in the 28th percentile among its peer group of 26,234 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

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