CVE-2022-39033: Smart eVision’s file acquisition function has a path traversal vulnerability due to insufficient filtering for

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2022-39033 is a critical-severity flaw (CVSS 9.8) affecting smart evision. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Smart eVision’s file acquisition function has a path traversal vulnerability due to insufficient filtering for special characters in the URL parameter. An unauthenticated remote attacker can exploit this vulnerability to bypass authentication, access restricted paths to download and delete arbitrary system files to disrupt service.

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	1.8% (top 21%)
CISA exploited list	No
Weakness	CWE-22
Published	2022-09-28
Last modified	2026-06-17

Publisher (CNA): TWCERT/CC · Vendor: lcnet

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

Am I affected?

Timeline

2022-09-28 04:15 UTCPublished CVE record published
2026-06-17 04:57 UTCUpdated Record last modified

lcnet smart evision DOWNGRADE

Affected: 2022.02.21

Fixed in: no fixed release known

Safe to downgrade to: a release before 2022.02.21

1. Check installed version

apt-cache policy smart-evision || rpm -q smart-evision || smart-evision --version

2. No fixed release: DOWNGRADE to a release before 2022.02.21 (Debian / Ubuntu)

apt-cache madison smart-evision sudo apt install smart-evision=<VERSION_BEFORE_2022.02.21> sudo apt-mark hold smart-evision

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

dnf --showduplicates list smart-evision sudo dnf downgrade smart-evision-<VERSION_BEFORE_2022.02.21> sudo dnf versionlock add smart-evision

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-2022-39033?

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

Is CVE-2022-39033 being exploited?

CVE-2022-39033 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-2022-39033 affect?

CVE-2022-39033 affects smart evision. Severity is critical (CVSS 9.8). Smart eVision’s file acquisition function has a path traversal vulnerability due to insufficient filtering for special characters in the URL parameter. An unauthenticated remote attacker can exploit this vulnerability to bypass authenticati

How urgent is CVE-2022-39033?

Priority 59/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2022-39035 MEDIUM 6.1 DOWNGRADE Smart eVision has insufficient filtering for special characters in the POST Data parameter in the specific fun
CVE-2022-39034 MEDIUM 6.5 DOWNGRADE Smart eVision has a path traversal vulnerability in the Report API function due to insufficient filtering for
CVE-2022-39032 HIGH 8.8 DOWNGRADE Smart eVision has an improper privilege management vulnerability
CVE-2022-39031 MEDIUM 5.3 DOWNGRADE Smart eVision has insufficient authorization for task acquisition function
CVE-2022-39030 HIGH 7.5 DOWNGRADE smart eVision has inadequate authorization for system information query function

References

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