CVE-2023-35793: An issue was discovered in Cassia Access Controller 2.1.1.2303271039

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HIGH 8.8DOWNGRADE

CVE-2023-35793 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. Establishing a web SSH session to gateways is vulnerable to Cross Site Request Forgery (CSRF) attacks.

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	None
User interaction	Required
EPSS exploit chance	1.1% (top 35%)
CISA exploited list	No
Weakness	CWE-352
Published	2023-09-27
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

2023-09-27 15:18 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-2023-35793?

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

Is CVE-2023-35793 being exploited?

CVE-2023-35793 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-2023-35793 affect?

CVE-2023-35793 affects access controller. Severity is high (CVSS 8.8). An issue was discovered in Cassia Access Controller 2.1.1.2303271039. Establishing a web SSH session to gateways is vulnerable to Cross Site Request Forgery (CSRF) attacks.

How urgent is CVE-2023-35793?

Priority 52/100. High severity; Public exploit reference

Related CVEs

CVE-2023-35794 HIGH 8.8 DOWNGRADE An issue was discovered in Cassia Access Controller 2.1.1.2303271039

References

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