CVE-2020-7838: A arbitrary code execution vulnerability exists in the way that the Stove client improperly validates input va

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HIGH 8.8UPGRADE

CVE-2020-7838 is a high-severity flaw (CVSS 8.8) affecting stove. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.2% (top 31%)
CISA exploited list	No
Weakness	CWE-20
Published	2020-12-18
Last modified	2026-06-17

Publisher (CNA): KrCERT/CC · Vendor: onstove

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-12-18 01:15 UTCPublished CVE record published
2026-06-17 03:25 UTCUpdated Record last modified

onstove stove UPGRADE

Affected: >= 0.0.4.10 and <= 0.0.4.71

Fixed in: newer than 0.0.4.71

Safe to downgrade to: a release before 0.0.4.10

1. Check installed version

apt-cache policy stove || rpm -q stove || stove --version

2. UPGRADE to newer than 0.0.4.71 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade stove

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade stove

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 0.0.4.10 (Debian / Ubuntu)

apt-cache madison stove sudo apt install stove=<VERSION_BEFORE_0.0.4.10> sudo apt-mark hold stove

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list stove sudo dnf downgrade stove-<VERSION_BEFORE_0.0.4.10> sudo dnf versionlock add stove

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-7838?

stove: upgrade to newer than 0.0.4.71. Exact commands for each OS are on this page.

Is CVE-2020-7838 being exploited?

CVE-2020-7838 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-7838 affect?

CVE-2020-7838 affects stove. Severity is high (CVSS 8.8). 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

How urgent is CVE-2020-7838?

Priority 48/100. High severity

References

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