CVE-2026-6244
division by zero in libpcap before 1.10.7
MEDIUM
5.5
CVSS Score
Published: September 5, 2026 at 06:50 PM UTC
Updated: September 8, 2026 at 07:39 PM UTC
1 product affected across 1 vendorLibpcap
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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.1%
SSVC
No known exploit
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.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
SSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
5.5MEDIUMTcpdump
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusAWAITING ANALYSIS
CWE
CWE-369
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