CVE-2023-27886: Osprey Pump Controller version 1.01 is vulnerable to an unauthenticated OS command injection vulnerability

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CRITICAL 9.8REMOTEMITIGATE

CVE-2023-27886 is a critical-severity flaw (CVSS 9.8) affecting osprey pump controller firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Osprey Pump Controller version 1.01 is vulnerable to an unauthenticated OS command injection vulnerability. This can be exploited to inject and execute arbitrary shell commands through a HTTP POST parameter called by index.php script.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

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	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-78
Published	2023-03-28
Last modified	2026-06-17

Publisher (CNA): ICS-CERT · Vendor: propumpservice

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

Am I affected?

Timeline

2023-03-28 21:15 UTCPublished CVE record published
2026-06-17 05:46 UTCUpdated Record last modified

propumpservice osprey pump controller firmware MITIGATE

Affected: 1.01

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.01

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.

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-2023-27886?

osprey pump controller firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-27886 being exploited?

CVE-2023-27886 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-2023-27886 affect?

CVE-2023-27886 affects osprey pump controller firmware. Severity is critical (CVSS 9.8). Osprey Pump Controller version 1.01 is vulnerable to an unauthenticated OS command injection vulnerability. This can be exploited to inject and execute arbitrary shell commands through a HTTP POST parameter called by index.php script.

How urgent is CVE-2023-27886?

Priority 58/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

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References

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