CVE-2023-41290: A path traversal vulnerability has been reported to affect QuFirewall

Routine

MEDIUM 4.1DOWNGRADE

CVE-2023-41290 is a medium-severity flaw (CVSS 4.1) affecting qufirewall. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A path traversal vulnerability has been reported to affect QuFirewall. If exploited, the vulnerability could allow authenticated administrators to read the contents of unexpected files and expose sensitive data via a network. We have already fixed the vulnerability in the following version: QuFirewall 2.4.1 ( 2024/02/01 ) and later

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	4.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-22
Published	2024-04-26
Last modified	2026-06-17

Publisher (CNA): QNAP Systems, Inc. · Vendor: qnap

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

Am I affected?

Timeline

2024-04-26 15:15 UTCPublished CVE record published
2026-06-17 06:21 UTCUpdated Record last modified

qnap qufirewall DOWNGRADE

Affected: 2.4.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.4.0

1. Check installed version

apt-cache policy qufirewall || rpm -q qufirewall || qufirewall --version

2. No fixed release: DOWNGRADE to a release before 2.4.0 (Debian / Ubuntu)

apt-cache madison qufirewall sudo apt install qufirewall=<VERSION_BEFORE_2.4.0> sudo apt-mark hold qufirewall

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list qufirewall sudo dnf downgrade qufirewall-<VERSION_BEFORE_2.4.0> sudo dnf versionlock add qufirewall

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2023-41290?

qufirewall: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-41290 being exploited?

CVE-2023-41290 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-2023-41290 affect?

CVE-2023-41290 affects qufirewall. Severity is medium (CVSS 4.1). A path traversal vulnerability has been reported to affect QuFirewall. If exploited, the vulnerability could allow authenticated administrators to read the contents of unexpected files and expose sensitive data via a network. We have alrea

How urgent is CVE-2023-41290?

Priority 24/100. No elevated risk signals yet.

Software pages

QNAP vulnerabilities

Related CVEs

CVE-2023-41291 MEDIUM 5.5 UPGRADE A path traversal vulnerability has been reported to affect QuFirewall
CVE-2023-23356 MEDIUM 5.5 UPGRADE A command injection vulnerability has been reported to affect several QNAP operating system versions

References

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