CVE-2024-8890: An attacker with access to the network where the CIRCUTOR Q-SMT is located in its firmware version 1.0.4, coul

Routine

HIGH 8.0MITIGATE

CVE-2024-8890 is a high-severity flaw (CVSS 8.0) affecting q-smt firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An attacker with access to the network where the CIRCUTOR Q-SMT is located in its firmware version 1.0.4, could obtain legitimate credentials or steal sessions due to the fact that the device only implements the HTTP protocol. This fact prevents a secure communication channel from being established.

Why this priority

High severity

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

Risk facts

CVSS score	8.0 (High)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 66%)
CISA exploited list	No
Weakness	CWE-201
Published	2024-09-18
Last modified	2026-06-17

Publisher (CNA): Spanish National Cybersecurity Institute, S.A. (INCIBE) · Vendor: circutor

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

Am I affected?

Timeline

2024-09-18 13:15 UTCPublished CVE record published
2026-06-17 08:23 UTCUpdated Record last modified

circutor q-smt firmware MITIGATE

Affected: 1.0.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.4

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-2024-8890?

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

Is CVE-2024-8890 being exploited?

CVE-2024-8890 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-2024-8890 affect?

CVE-2024-8890 affects q-smt firmware. Severity is high (CVSS 8.0). An attacker with access to the network where the CIRCUTOR Q-SMT is located in its firmware version 1.0.4, could obtain legitimate credentials or steal sessions due to the fact that the device only implements the HTTP protocol. This fact pre

How urgent is CVE-2024-8890?

Priority 37/100. High severity

Related CVEs

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CVE-2024-8888 CRITICAL 10.0 MITIGATE An attacker with access to the network where CIRCUTOR Q-SMT is located in its firmware version 1.0.4, could st
CVE-2024-8887 CRITICAL 10.0 MITIGATE CIRCUTOR Q-SMT in its firmware version 1.0.4, could be affected by a denial of service (DoS) attack if an atta

References

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