CVE-2022-23764: The vulnerability causing from insufficient verification procedures for downloaded files during WebCube update

This month

HIGH 8.8UPGRADE

CVE-2022-23764 is a high-severity flaw (CVSS 8.8) affecting webcube. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The vulnerability causing from insufficient verification procedures for downloaded files during WebCube update. Remote attackers can bypass this verification logic to update both digitally signed and unauthorized files, enabling remote code execution.

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	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-346
Published	2022-08-17
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2022-08-17 21:15 UTCPublished CVE record published
2026-06-17 04:30 UTCUpdated Record last modified

teruten webcube UPGRADE

Affected: >= 1.0.5.5 and < 1.2.0.0

Fixed in: 1.2.0.0

Safe to downgrade to: a release before 1.0.5.5

1. Check installed version

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

2. UPGRADE to 1.2.0.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade webcube

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 1.0.5.5 (Debian / Ubuntu)

apt-cache madison webcube sudo apt install webcube=<VERSION_BEFORE_1.0.5.5> sudo apt-mark hold webcube

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

dnf --showduplicates list webcube sudo dnf downgrade webcube-<VERSION_BEFORE_1.0.5.5> sudo dnf versionlock add webcube

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-2022-23764?

webcube: upgrade to 1.2.0.0. Exact commands for each OS are on this page.

Is CVE-2022-23764 being exploited?

CVE-2022-23764 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-2022-23764 affect?

CVE-2022-23764 affects webcube. Severity is high (CVSS 8.8). The vulnerability causing from insufficient verification procedures for downloaded files during WebCube update. Remote attackers can bypass this verification logic to update both digitally signed and unauthorized files, enabling remote code

How urgent is CVE-2022-23764?

Priority 44/100. High severity

Related CVEs

CVE-2022-28945 CRITICAL 9.8 DOWNGRADE An issue in Webbank WeCube v3.2.2 allows attackers to execute a directory traversal via a crafted ZIP file.

References

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