CVE-2026-6244 — MEDIUM (5.5)

Vulnerability Description

libpcap BPF interpreter for the 'div #k' and 'mod #k' ALU instructions does not check whether the immediate value is zero. In particular uncommon use cases a crafted filter program can cause a division by zero.

CVSS Score

5.5

MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Related Weaknesses (CWE)

CWE-369

References

https://github.com/the-tcpdump-group/libpcap/commit/98bb921b141aa642faedbf2ac510

FAQ

What is CVE-2026-6244?

CVE-2026-6244 is a vulnerability with a CVSS score of 5.5 (MEDIUM). libpcap BPF interpreter for the 'div #k' and 'mod #k' ALU instructions does not check whether the immediate value is zero. In particular uncommon use cases a crafted filter program can cause a divisi...

How severe is CVE-2026-6244?

CVE-2026-6244 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-6244?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.