CVE-2024-8073: Improper Input Validation vulnerability in Hillstone Networks Hillstone Networks Web Application Firewall on 5

This month

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2024-8073 is a critical-severity flaw (CVSS 9.8) affecting web application firewall. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper Input Validation vulnerability in Hillstone Networks Hillstone Networks Web Application Firewall on 5.5R6 allows Command Injection.This issue affects Hillstone Networks Web Application Firewall: from 5.5R6-2.6.7 through 5.5R6-2.8.13.

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	1.1% (top 34%)
CISA exploited list	No
Weakness	CWE-20, CWE-77
Published	2024-08-26
Last modified	2026-06-17

Publisher (CNA): Hillstone Networks, Inc. · Vendor: hillstonenet

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

Am I affected?

Timeline

2024-08-26 03:15 UTCPublished CVE record published
2026-06-17 08:21 UTCUpdated Record last modified

hillstonenet web application firewall DOWNGRADE

Affected: 5.5r6-2.6.7 · 5.5r6-2.8.13

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.5r6-2.6.7

1. Check installed version

apt-cache policy web-application-firewall || rpm -q web-application-firewall || web-application-firewall --version

2. No fixed release: DOWNGRADE to a release before 5.5r6-2.6.7 (Debian / Ubuntu)

apt-cache madison web-application-firewall sudo apt install web-application-firewall=<VERSION_BEFORE_5.5r6-2.6.7> sudo apt-mark hold web-application-firewall

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

dnf --showduplicates list web-application-firewall sudo dnf downgrade web-application-firewall-<VERSION_BEFORE_5.5r6-2.6.7> sudo dnf versionlock add web-application-firewall

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-2024-8073?

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

Is CVE-2024-8073 being exploited?

CVE-2024-8073 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-2024-8073 affect?

CVE-2024-8073 affects web application firewall. Severity is critical (CVSS 9.8). Improper Input Validation vulnerability in Hillstone Networks Hillstone Networks Web Application Firewall on 5.5R6 allows Command Injection.This issue affects Hillstone Networks Web Application Firewall: from 5.5R6-2.6.7 through 5.5R6-2.8.1

How urgent is CVE-2024-8073?

Priority 56/100. Critical severity; Remotely exploitable, no login, no user action

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References

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