How severe is CVE-2023-49963?

CVE-2023-49963 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-49963 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2023-49963?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2023-49963 have an EU (EUVD) identifier?

Yes. CVE-2023-49963 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-53858.

When was CVE-2023-49963 published?

CVE-2023-49963 was published on 2024-04-19 and last updated on 2026-06-17.

CVE-2023-49963

CVE-2023-49963 is a high-severity vulnerability with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-259.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-53858
Weakness: CWE-259
Published: 2024-04-19
Last modified: 2026-06-17

Description

DYMO LabelWriter Print Server through 2.366 contains a backdoor hard-coded password that could allow an attacker to take control.

Frequently asked questions

What is CVE-2023-49963?: DYMO LabelWriter Print Server through 2.366 contains a backdoor hard-coded password that could allow an attacker to take control.
How severe is CVE-2023-49963?: CVE-2023-49963 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-49963 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2023-49963?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-49963 have an EU (EUVD) identifier?: Yes. CVE-2023-49963 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-53858.
When was CVE-2023-49963 published?: CVE-2023-49963 was published on 2024-04-19 and last updated on 2026-06-17.

References

Other CWE-259 vulnerabilities

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CVE-2014-2363 — Critical (CVSS 10.0): Morpho Itemiser 3 8.17 has hardcoded administrative credentials, which makes it easier for remote attackers to obtain…
CVE-2012-5862 — Critical (CVSS 10.0): These Sinapsi devices store hard-coded passwords in the PHP file of the device. By using the hard-coded passwords in…
CVE-2025-20286 — Critical (CVSS 9.9): A vulnerability in Amazon Web Services (AWS), Microsoft Azure, and Oracle Cloud Infrastructure (OCI) cloud deployments…
CVE-2026-35905 — Critical (CVSS 9.8): T3 Technology CPE models T625Pro v1.0.07, T6825G v1.0.03, and T7281 v1.0.03 were discovered to contain a hardcoded…
CVE-2026-7251 — Critical (CVSS 9.8): Eppendorf BioFlo 320 is vulnerable due to VNC server using a hard-coded password. If a remote attacker knows the…

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