CVE-2022-45699: Command injection in the administration interface in APSystems ECU-R version 5203 allows a remote unauthentica

This week

CRITICAL 9.8REMOTEMITIGATE

CVE-2022-45699 is a critical-severity flaw (CVSS 9.8) affecting ecu-r firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Command injection in the administration interface in APSystems ECU-R version 5203 allows a remote unauthenticated attacker to execute arbitrary commands as root using the timezone parameter.

Why this priority

Critical severity
EPSS top 1%: very likely to be exploited
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	76.6% (top 1%)
CISA exploited list	No
Weakness	CWE-78, CWE-94
Published	2023-02-10
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: apsystems

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

Am I affected?

Timeline

2023-02-10 02:15 UTCPublished CVE record published
2026-06-17 05:10 UTCUpdated Record last modified

apsystems ecu-r firmware MITIGATE

Affected: 5203

Fixed in: no fixed release known

Safe to downgrade to: a release before 5203

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora ELN · python-wrapt · FIXED · 2.5.2-1.eln159 · FEDORA-2026-5503ee9370 · source

sudo dnf upgrade --advisory=FEDORA-2026-5503ee9370

Fedora 46 · python-wrapt · FIXED · 2.5.2-1.fc46 · FEDORA-2026-8a83579801 · source

sudo dnf upgrade --advisory=FEDORA-2026-8a83579801

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: www.youtube.com/watch?v=YNeeaDPJOBY
Nuclei scan template: APsystems ECU-R Firmware - Command Injection

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-2022-45699?

ecu-r firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-45699 being exploited?

CVE-2022-45699 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-2022-45699 affect?

CVE-2022-45699 affects ecu-r firmware. Severity is critical (CVSS 9.8). Command injection in the administration interface in APSystems ECU-R version 5203 allows a remote unauthenticated attacker to execute arbitrary commands as root using the timezone parameter.

How urgent is CVE-2022-45699?

Priority 72/100. Critical severity; EPSS top 1%: very likely to be exploited; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

References

← Back to latest CVEs