How severe is CVE-2023-39057?

CVE-2023-39057 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-39057 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-39057?

CVE-2023-39057 affects Lycorp Line Mini App. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-39057?

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

When was CVE-2023-39057 published?

CVE-2023-39057 was published on 2023-11-02 and last updated on 2026-06-17.

CVE-2023-39057

CVE-2023-39057 is a high-severity vulnerability in Lycorp Line Mini App with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Lycorp Line Mini App
Published: 2023-11-02
Last modified: 2026-06-17

Description

An information leak in hirochanKAKIwaiting v13.6.1 allows attackers to obtain the channel access token and send crafted messages.

Frequently asked questions

What is CVE-2023-39057?: An information leak in hirochanKAKIwaiting v13.6.1 allows attackers to obtain the channel access token and send crafted messages.
How severe is CVE-2023-39057?: CVE-2023-39057 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-39057 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-39057?: CVE-2023-39057 affects Lycorp Line Mini App. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-39057?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-39057 published?: CVE-2023-39057 was published on 2023-11-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:lycorp:line_mini_app:13.6.1:*:*:*:*:*:*:*

More vulnerabilities in Lycorp Line Mini App

CVE-2023-39054 — High (CVSS 7.5): An information leak in Tokudaya.ekimae_mc v13.6.1 allows attackers to obtain the channel access token and send crafted…
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