How severe is CVE-2025-55345?

CVE-2025-55345 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-55345 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-55345?

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-2025-55345 have an EU (EUVD) identifier?

Yes. CVE-2025-55345 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-24554.

When was CVE-2025-55345 published?

CVE-2025-55345 was published on 2025-08-13 and last updated on 2026-06-17.

CVE-2025-55345

CVE-2025-55345 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-61.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-24554
Weakness: CWE-61
Published: 2025-08-13
Last modified: 2026-06-17

Description

Using Codex CLI in workspace-write mode inside a malicious context (repo, directory, etc) could lead to arbitrary file overwrite and potentially remote code execution due to symlinks being followed outside the allowed current working directory.

Frequently asked questions

What is CVE-2025-55345?: Using Codex CLI in workspace-write mode inside a malicious context (repo, directory, etc) could lead to arbitrary file overwrite and potentially remote code execution due to symlinks being followed outside the allowed current working directory.
How severe is CVE-2025-55345?: CVE-2025-55345 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-55345 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-55345?: 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-2025-55345 have an EU (EUVD) identifier?: Yes. CVE-2025-55345 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-24554.
When was CVE-2025-55345 published?: CVE-2025-55345 was published on 2025-08-13 and last updated on 2026-06-17.

References

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