CVE-2020-35462: Version 3.16.0 of the CoScale agent Docker image contains a blank password for the root user

This week

CRITICAL 9.8REMOTEWATCHLISTDOWNGRADE

CVE-2020-35462 is a critical-severity flaw (CVSS 9.8) affecting coscale agent. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Version 3.16.0 of the CoScale agent Docker image contains a blank password for the root user. Systems deployed using affected versions of the CoScale agent container may allow a remote attacker to achieve root access with a blank password.

Why this priority

Critical severity
Remotely exploitable, no login, no user action
On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.1% (top 19%)
CISA exploited list	No
Weakness	CWE-306
Published	2020-12-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: coscale agent project

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

Am I affected?

Timeline

2020-12-15 23:15 UTCPublished CVE record published
2026-06-17 03:13 UTCUpdated Record last modified

coscale agent project coscale agent DOWNGRADE

Affected: 3.16.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.16.0

1. Check installed version

apt-cache policy coscale-agent || rpm -q coscale-agent || coscale-agent --version

2. No fixed release: DOWNGRADE to a release before 3.16.0 (Debian / Ubuntu)

apt-cache madison coscale-agent sudo apt install coscale-agent=<VERSION_BEFORE_3.16.0> sudo apt-mark hold coscale-agent

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list coscale-agent sudo dnf downgrade coscale-agent-<VERSION_BEFORE_3.16.0> sudo dnf versionlock add coscale-agent

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-2020-35462?

coscale agent: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-35462 being exploited?

CVE-2020-35462 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-2020-35462 affect?

CVE-2020-35462 affects coscale agent. Severity is critical (CVSS 9.8). Version 3.16.0 of the CoScale agent Docker image contains a blank password for the root user. Systems deployed using affected versions of the CoScale agent container may allow a remote attacker to achieve root access with a blank password.

How urgent is CVE-2020-35462?

Priority 65/100. Critical severity; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Docker vulnerabilities

References

← Back to latest CVEs