CVE-2024-8887: CIRCUTOR Q-SMT in its firmware version 1.0.4, could be affected by a denial of service (DoS) attack if an atta

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CRITICAL 10.0REMOTEMITIGATE

CVE-2024-8887 is a critical-severity flaw (CVSS 10.0) affecting q-smt firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

CIRCUTOR Q-SMT in its firmware version 1.0.4, could be affected by a denial of service (DoS) attack if an attacker with access to the web service bypasses the authentication mechanisms on the login page, allowing the attacker to use all the functionalities implemented at web level that allow interacting with the device.

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	10.0 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 54%)
CISA exploited list	No
Weakness	CWE-1284
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 11:15 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-2024-8887?

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

Is CVE-2024-8887 being exploited?

CVE-2024-8887 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-2024-8887 affect?

CVE-2024-8887 affects q-smt firmware. Severity is critical (CVSS 10.0). CIRCUTOR Q-SMT in its firmware version 1.0.4, could be affected by a denial of service (DoS) attack if an attacker with access to the web service bypasses the authentication mechanisms on the login page, allowing the attacker to use all the

How urgent is CVE-2024-8887?

Priority 52/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2024-8891 MEDIUM 5.3 MITIGATE An attacker with no knowledge of the current users in the web application, could build a dictionary of potenti
CVE-2024-8890 HIGH 8.0 MITIGATE An attacker with access to the network where the CIRCUTOR Q-SMT is located in its firmware version 1.0.4, coul
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

References

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