CVE-2026-1618: Authentication Bypass Using an Alternate Path or Channel vulnerability in Universal Software Inc

This month

HIGH 8.8UPGRADE

CVE-2026-1618 is a high-severity flaw (CVSS 8.8) affecting flexcity. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Authentication Bypass Using an Alternate Path or Channel vulnerability in Universal Software Inc. FlexCity/Kiosk allows Privilege Escalation. This issue affects FlexCity/Kiosk: from 1.0 before 1.0.36.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 62%)
CISA exploited list	No
Weakness	CWE-288
Published	2026-02-13
Last modified	2026-06-17

Publisher (CNA): Computer Emergency Response Team of the Republic of Turkey · Vendor: uni-yaz

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

Am I affected?

Timeline

2026-02-13 14:16 UTCPublished CVE record published
2026-06-17 10:16 UTCUpdated Record last modified

uni-yaz flexcity UPGRADE

Affected: >= 1.0 and < 1.0.36

Fixed in: 1.0.36

Safe to downgrade to: a release before 1.0

1. Check installed version

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

2. UPGRADE to 1.0.36 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade flexcity

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade flexcity

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison flexcity sudo apt install flexcity=<VERSION_BEFORE_1.0> sudo apt-mark hold flexcity

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list flexcity sudo dnf downgrade flexcity-<VERSION_BEFORE_1.0> sudo dnf versionlock add flexcity

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-2026-1618?

flexcity: upgrade to 1.0.36. Exact commands for each OS are on this page.

Is CVE-2026-1618 being exploited?

CVE-2026-1618 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-2026-1618 affect?

CVE-2026-1618 affects flexcity. Severity is high (CVSS 8.8). Authentication Bypass Using an Alternate Path or Channel vulnerability in Universal Software Inc. FlexCity/Kiosk allows Privilege Escalation. This issue affects FlexCity/Kiosk: from 1.0 before 1.0.36.

How urgent is CVE-2026-1618?

Priority 40/100. High severity

Related CVEs

CVE-2026-1619 HIGH 8.3 UPGRADE Authorization Bypass Through User-Controlled Key vulnerability in Universal Software Inc
CVE-2025-14349 HIGH 8.8 UPGRADE Privilege Defined With Unsafe Actions, Missing Authentication for Critical Function vulnerability in Universal

References

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