CVE-2024-39705
CVE-2024-39705 is a critical-severity vulnerability with a CVSS 3.x base score of 9.8. 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-502.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 1% (68th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-0118
- Weakness: CWE-502
- Published:
- Last modified:
Description
NLTK through 3.8.1 allows remote code execution if untrusted packages have pickled Python code, and the integrated data package download functionality is used. This affects, for example, averaged_perceptron_tagger and punkt.
Frequently asked questions
- What is CVE-2024-39705?
- NLTK through 3.8.1 allows remote code execution if untrusted packages have pickled Python code, and the integrated data package download functionality is used. This affects, for example, averaged_perceptron_tagger and punkt.
- How severe is CVE-2024-39705?
- CVE-2024-39705 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2024-39705 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2024-39705?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2024-39705 have an EU (EUVD) identifier?
- Yes. CVE-2024-39705 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0118.
- When was CVE-2024-39705 published?
- CVE-2024-39705 was published on 2024-06-27 and last updated on 2026-06-17.
References
- https://github.com/nltk/nltk/issues/2522
- https://github.com/nltk/nltk/issues/3266
- https://www.vicarius.io/vsociety/posts/rce-in-python-nltk-cve-2024-39705-39706
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