CVE-2023-35794: An issue was discovered in Cassia Access Controller 2.1.1.2303271039

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HIGH 8.8DOWNGRADE

CVE-2023-35794 is a high-severity flaw (CVSS 8.8) affecting access controller. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in Cassia Access Controller 2.1.1.2303271039. The Web SSH terminal endpoint (spawned console) can be accessed without authentication. Specifically, there is no session cookie validation on the Access Controller; instead, there is only Basic Authentication to the SSH console.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.2% (top 31%)
CISA exploited list	No
Weakness	CWE-287
Published	2023-10-27
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: cassianetworks

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

Am I affected?

Timeline

2023-10-27 21:15 UTCPublished CVE record published
2026-06-17 06:05 UTCUpdated Record last modified

cassianetworks access controller DOWNGRADE

Affected: 2.1.1.2303271039

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.1.1.2303271039

1. Check installed version

apt-cache policy access-controller || rpm -q access-controller || access-controller --version

2. No fixed release: DOWNGRADE to a release before 2.1.1.2303271039 (Debian / Ubuntu)

apt-cache madison access-controller sudo apt install access-controller=<VERSION_BEFORE_2.1.1.2303271039> sudo apt-mark hold access-controller

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

dnf --showduplicates list access-controller sudo dnf downgrade access-controller-<VERSION_BEFORE_2.1.1.2303271039> sudo dnf versionlock add access-controller

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-2023-35794?

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

Is CVE-2023-35794 being exploited?

CVE-2023-35794 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-2023-35794 affect?

CVE-2023-35794 affects access controller. Severity is high (CVSS 8.8). An issue was discovered in Cassia Access Controller 2.1.1.2303271039. The Web SSH terminal endpoint (spawned console) can be accessed without authentication. Specifically, there is no session cookie validation on the Access Controller; inst

How urgent is CVE-2023-35794?

Priority 53/100. High severity; Public exploit reference

Related CVEs

CVE-2023-35793 HIGH 8.8 DOWNGRADE An issue was discovered in Cassia Access Controller 2.1.1.2303271039

References

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