How severe is CVE-2019-5954?

CVE-2019-5954 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2019-5954 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-5954?

CVE-2019-5954 affects Jreast Jr East Japan. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-5954?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2019-5954 published?

CVE-2019-5954 was published on 2019-05-17 and last updated on 2026-06-17.

CVE-2019-5954

CVE-2019-5954 is a critical-severity vulnerability in Jreast Jr East Japan with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v2: 6.4
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Jreast Jr East Japan
Published: 2019-05-17
Last modified: 2026-06-17

Description

JR East Japan train operation information push notification App for Android version 1.2.4 and earlier allows remote attackers to bypass access restriction to obtain or alter the user's registered information via unspecified vectors.

Frequently asked questions

What is CVE-2019-5954?: JR East Japan train operation information push notification App for Android version 1.2.4 and earlier allows remote attackers to bypass access restriction to obtain or alter the user's registered information via unspecified vectors.
How severe is CVE-2019-5954?: CVE-2019-5954 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2019-5954 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-5954?: CVE-2019-5954 affects Jreast Jr East Japan. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-5954?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-5954 published?: CVE-2019-5954 was published on 2019-05-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:jreast:jr_east_japan:*:*:*:*:*:android:*:*

More vulnerabilities in Jreast Jr East Japan

CVE-2014-2001 — Medium (CVSS 5.8): The East Japan Railway Company JR East Japan application before 1.2.0 for Android does not verify X.509 certificates…

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