How severe is CVE-2025-34023?

CVE-2025-34023 has a CVSS 4.0 base score of 8.5, rated high severity.

Is CVE-2025-34023 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-34023?

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-2025-34023 have an EU (EUVD) identifier?

Yes. CVE-2025-34023 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18777.

When was CVE-2025-34023 published?

CVE-2025-34023 was published on 2025-06-20 and last updated on 2026-06-17.

CVE-2025-34023

CVE-2025-34023 is a high-severity vulnerability with a CVSS 4.0 base score of 8.5. 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-22.

Key facts

Severity: High (CVSS 4.0 base score 8.5)
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-18777
Weakness: CWE-22
Published: 2025-06-20
Last modified: 2026-06-17

Description

A path traversal vulnerability exists in the Karel IP1211 IP Phone's web management panel. The /cgi-bin/cgiServer.exx endpoint fails to properly sanitize user input to the page parameter, allowing remote authenticated attackers to access arbitrary files on the underlying system by using crafted path traversal sequences. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-02 UTC.

Frequently asked questions

What is CVE-2025-34023?: A path traversal vulnerability exists in the Karel IP1211 IP Phone's web management panel. The /cgi-bin/cgiServer.exx endpoint fails to properly sanitize user input to the page parameter, allowing remote authenticated attackers to access arbitrary files on the underlying system by using crafted path traversal sequences. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-02 UTC.
How severe is CVE-2025-34023?: CVE-2025-34023 has a CVSS 4.0 base score of 8.5, rated high severity.
Is CVE-2025-34023 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-34023?: 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-2025-34023 have an EU (EUVD) identifier?: Yes. CVE-2025-34023 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18777.
When was CVE-2025-34023 published?: CVE-2025-34023 was published on 2025-06-20 and last updated on 2026-06-17.

References

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