CVE-2023-47030: An issue in NCR Terminal Handler v.1.5.1 allows a remote attacker to execute arbitrary code and obtain sensiti

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2023-47030 is a critical-severity flaw (CVSS 9.8) affecting terminal handler. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue in NCR Terminal Handler v.1.5.1 allows a remote attacker to execute arbitrary code and obtain sensitive information via a GET request to a UserService SOAP API endpoint to validate if a user exists.

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	0.7% (top 46%)
CISA exploited list	No
Weakness	CWE-94
Published	2025-06-23
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: ncr

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

Am I affected?

Timeline

2025-06-23 20:15 UTCPublished CVE record published
2026-06-17 06:31 UTCUpdated Record last modified

ncr terminal handler DOWNGRADE

Affected: 1.5.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.5.1

1. Check installed version

apt-cache policy terminal-handler || rpm -q terminal-handler || terminal-handler --version

2. No fixed release: DOWNGRADE to a release before 1.5.1 (Debian / Ubuntu)

apt-cache madison terminal-handler sudo apt install terminal-handler=<VERSION_BEFORE_1.5.1> sudo apt-mark hold terminal-handler

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

dnf --showduplicates list terminal-handler sudo dnf downgrade terminal-handler-<VERSION_BEFORE_1.5.1> sudo dnf versionlock add terminal-handler

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-2023-47030?

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

Is CVE-2023-47030 being exploited?

CVE-2023-47030 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-2023-47030 affect?

CVE-2023-47030 affects terminal handler. Severity is critical (CVSS 9.8). An issue in NCR Terminal Handler v.1.5.1 allows a remote attacker to execute arbitrary code and obtain sensitive information via a GET request to a UserService SOAP API endpoint to validate if a user exists.

How urgent is CVE-2023-47030?

Priority 53/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2023-47031 CRITICAL 9.8 DOWNGRADE An issue in NCR Terminal Handler v.1.5.1 allows a remote attacker to escalate privileges via a crafted POST re
CVE-2023-47298 MEDIUM 4.3 DOWNGRADE An issue in NCR Terminal Handler 1.5.1 allows a low-level privileged authenticated attacker to query the SOAP
CVE-2023-47297 CRITICAL 9.8 DOWNGRADE A settings manipulation vulnerability in NCR Terminal Handler v1.5.1 allows attackers to execute arbitrary com
CVE-2023-47295 CRITICAL 9.8 DOWNGRADE A CSV injection vulnerability in NCR Terminal Handler v1.5.1 allows attackers to execute arbitrary commands vi
CVE-2023-47294 HIGH 8.1 DOWNGRADE An issue in NCR Terminal Handler v1.5.1 allows low-level privileged authenticated attackers to arbitrarily dea

References

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