CVE-2022-2661: Sequi PortBloque S has an improper authorization vulnerability, which may allow a low-privileged user to perfo

This month

CRITICAL 9.9MITIGATE

CVE-2022-2661 is a critical-severity flaw (CVSS 9.9) affecting portbloque s firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Sequi PortBloque S has an improper authorization vulnerability, which may allow a low-privileged user to perform administrative functions using specifically crafted requests.

Why this priority

Critical severity

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

Risk facts

CVSS score	9.9 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.8% (top 42%)
CISA exploited list	No
Weakness	CWE-285
Published	2022-08-16
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2022-08-16 21:15 UTCPublished CVE record published
2026-06-17 04:42 UTCUpdated Record last modified

sequi portbloque s firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

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-2022-2661?

portbloque s firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-2661 being exploited?

CVE-2022-2661 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-2022-2661 affect?

CVE-2022-2661 affects portbloque s firmware. Severity is critical (CVSS 9.9). Sequi PortBloque S has an improper authorization vulnerability, which may allow a low-privileged user to perform administrative functions using specifically crafted requests.

How urgent is CVE-2022-2661?

Priority 49/100. Critical severity

Related CVEs

CVE-2022-2662 CRITICAL 9.6 MITIGATE Sequi PortBloque S has a improper authentication issues which may allow an attacker to bypass the authenticati

References

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