CVE-2025-68381

Description

Improper Bounds Check (CWE-787) in Packetbeat can allow a remote unauthenticated attacker to exploit a Buffer Overflow (CAPEC-100) and reliably crash the application or cause significant resource exhaustion via a single crafted UDP packet with an invalid fragment sequence number.

CVSS v3.1 Score

6.5

MEDIUM

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

Weakness Type (CWE)

CWE-787 Out-of-bounds Write

Affected Products

Vendor	Product	Versions
elasticsearch	packetbeat	7.0.0 — 7.17.29
elasticsearch	packetbeat	8.0.0 — 8.19.9
elasticsearch	packetbeat	9.0.0 — 9.1.9
elasticsearch	packetbeat	9.2.0 — 9.2.3

References

Advisories & Patches

https://discuss.elastic.co/t/packetbeat-8-19-9-9-1-9-and-9-2-3-security-update-esa-2025-30/384178

Frequently Asked Questions

What is CVE-2025-68381? +

Improper Bounds Check (CWE-787) in Packetbeat can allow a remote unauthenticated attacker to exploit a Buffer Overflow (CAPEC-100) and reliably crash the application or cause significant resource exhaustion via a single crafted UDP packet with an invalid fragment sequence number. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2025-68381? +

CVE-2025-68381 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-68381? +

CVE-2025-68381 affects products from elasticsearch, specifically: packetbeat. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-68381? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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