CVE-2025-11964
CVE-2025-11964 is a low-severity vulnerability with a CVSS 3.x base score of 1.9. 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-787.
Key facts
- Severity: Low (CVSS 3.x base score 1.9)
- EPSS exploit prediction: 0% (1st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-205868
- Weakness: CWE-787
- Published:
- Last modified:
Description
On Windows only, if libpcap needs to convert a Windows error message to UTF-8 and the message includes characters that UTF-8 represents using 4 bytes, utf_16le_to_utf_8_truncated() can write data beyond the end of the provided buffer.
Frequently asked questions
- What is CVE-2025-11964?
- On Windows only, if libpcap needs to convert a Windows error message to UTF-8 and the message includes characters that UTF-8 represents using 4 bytes, utf_16le_to_utf_8_truncated() can write data beyond the end of the provided buffer.
- How severe is CVE-2025-11964?
- CVE-2025-11964 has a CVSS 3.x base score of 1.9, rated low severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
- Is CVE-2025-11964 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2025-11964?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-11964 have an EU (EUVD) identifier?
- Yes. CVE-2025-11964 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-205868.
- When was CVE-2025-11964 published?
- CVE-2025-11964 was published on 2025-12-31 and last updated on 2026-06-17.
References
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