How severe is CVE-2020-7838?

CVE-2020-7838 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-7838 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-7838?

CVE-2020-7838 affects Onstove Stove. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-7838?

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-2020-7838 published?

CVE-2020-7838 was published on 2020-12-18 and last updated on 2026-06-17.

CVE-2020-7838

CVE-2020-7838 is a high-severity vulnerability in Onstove Stove with a CVSS 3.x base score of 8.8. 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-20.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Onstove Stove
Published: 2020-12-18
Last modified: 2026-06-17

Description

A arbitrary code execution vulnerability exists in the way that the Stove client improperly validates input value. An attacker could execute arbitrary code when the user access to crafted web page. This issue affects: Smilegate STOVE Client 0.0.4.72.

Frequently asked questions

What is CVE-2020-7838?: A arbitrary code execution vulnerability exists in the way that the Stove client improperly validates input value. An attacker could execute arbitrary code when the user access to crafted web page. This issue affects: Smilegate STOVE Client 0.0.4.72.
How severe is CVE-2020-7838?: CVE-2020-7838 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-7838 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-7838?: CVE-2020-7838 affects Onstove Stove. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-7838?: 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-2020-7838 published?: CVE-2020-7838 was published on 2020-12-18 and last updated on 2026-06-17.

References

https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=35851

Affected products (1)

cpe:2.3:a:onstove:stove:*:*:*:*:*:*:*:*

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