How severe is CVE-2025-6101?

CVE-2025-6101 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2025-6101 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-6101?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-6101 have an EU (EUVD) identifier?

Yes. CVE-2025-6101 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18359.

When was CVE-2025-6101 published?

CVE-2025-6101 was published on 2025-06-16 and last updated on 2026-06-17.

CVE-2025-6101

CVE-2025-6101 is a medium-severity vulnerability with a CVSS 3.x base score of 5.5. 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-94.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 5.2
CVSS v4: 2.0
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-18359
Weakness: CWE-94
Published: 2025-06-16
Last modified: 2026-06-17

Description

A vulnerability classified as critical has been found in letta-ai letta up to 0.4.1. Affected is the function function_message of the file letta/letta/interface.py. The manipulation of the argument function_name/function_args leads to improper neutralization of directives in dynamically evaluated code. The exploit has been disclosed to the public and may be used.

Frequently asked questions

What is CVE-2025-6101?: A vulnerability classified as critical has been found in letta-ai letta up to 0.4.1. Affected is the function function_message of the file letta/letta/interface.py. The manipulation of the argument function_name/function_args leads to improper neutralization of directives in dynamically evaluated code. The exploit has been disclosed to the public and may be used.
How severe is CVE-2025-6101?: CVE-2025-6101 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-6101 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-6101?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-6101 have an EU (EUVD) identifier?: Yes. CVE-2025-6101 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18359.
When was CVE-2025-6101 published?: CVE-2025-6101 was published on 2025-06-16 and last updated on 2026-06-17.

References

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