Is CVE-2025-7707 in the CISA KEV catalog?

No. CVE-2025-7707 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-7707?

CVE-2025-7707 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2025-7707?

CVE-2025-7707 has an EPSS score of 0.17% (6th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-7707?

Upgrade llamaindex to 0.13.0 or later.

CVE & CISA-KEV Catalog

CVE-2025-7707

HIGH

7.8

CVSS v3

NVD

Description

The llama_index library version 0.12.33 sets the NLTK data directory to a subdirectory of the codebase by default, which is world-writable in multi-user environments. This configuration allows local users to overwrite, delete, or corrupt NLTK data files, leading to potential denial of service, data tampering, or privilege escalation. The vulnerability arises from the use of a shared cache directory instead of a user-specific one, making it susceptible to local data tampering and denial of service.

CWE-377

How to fix

Remediation Available

llamaindexNVD

Affected:>= 0.12.33, < 0.13.0Fixed in:0.13.0CVE-2025-7707derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.17%probability of exploitation in 30 days

6thpercentile

Low risk: more likely to be exploited than 6% of all known CVEs.

References

Patch1

github.com

Exploit1

huntr.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-21.