CVE-2023-52252: Unified Remote 3.13.0 allows remote attackers to execute arbitrary Lua code because of a wildcarded Access-Con

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2023-52252 is a critical-severity flaw (CVSS 9.8) affecting unified remote. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unified Remote 3.13.0 allows remote attackers to execute arbitrary Lua code because of a wildcarded Access-Control-Allow-Origin for the Remote upload endpoint.

Why this priority

Critical severity
Public exploit reference
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-611
Published	2023-12-30
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: unifiedremote

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

Am I affected?

Timeline

2023-12-30 06:15 UTCPublished CVE record published
2026-06-17 06:42 UTCUpdated Record last modified

unifiedremote unified remote DOWNGRADE

Affected: 3.13.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.13.0

1. Check installed version

apt-cache policy unified-remote || rpm -q unified-remote || unified-remote --version

2. No fixed release: DOWNGRADE to a release before 3.13.0 (Debian / Ubuntu)

apt-cache madison unified-remote sudo apt install unified-remote=<VERSION_BEFORE_3.13.0> sudo apt-mark hold unified-remote

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

dnf --showduplicates list unified-remote sudo dnf downgrade unified-remote-<VERSION_BEFORE_3.13.0> sudo dnf versionlock add unified-remote

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-2023-52252?

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

Is CVE-2023-52252 being exploited?

CVE-2023-52252 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-2023-52252 affect?

CVE-2023-52252 affects unified remote. Severity is critical (CVSS 9.8). Unified Remote 3.13.0 allows remote attackers to execute arbitrary Lua code because of a wildcarded Access-Control-Allow-Origin for the Remote upload endpoint.

How urgent is CVE-2023-52252?

Priority 61/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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