Tcpdump Group libpcap up to 1.10.6 BPF Interpreter divide by zero

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.39

Summaryinfo

A vulnerability labeled as problematic has been found in Tcpdump Group libpcap up to 1.10.6. Impacted is an unknown function of the component BPF Interpreter. The manipulation results in divide by zero. This vulnerability is known as CVE-2026-6244. Attacking locally is a requirement. No exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Tcpdump Group libpcap up to 1.10.6. Affected is an unknown part of the component BPF Interpreter. The manipulation with an unknown input leads to a divide by zero vulnerability. CWE is classifying the issue as CWE-369. The product divides a value by zero. This is going to have an impact on availability. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-6244 since 04/13/2026. The exploitability is told to be easy. The attack needs to be approached locally. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 343118 (Linux Distros Unpatched Vulnerability : CVE-2026-6244), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.10.7 eliminates this vulnerability. Applying the patch 98bb921b141aa642faedbf2ac510541c76499a19 is able to eliminate this problem.

The vulnerability is also documented in the databases at Tenable (343118) and EUVD (EUVD-2026-72018). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.1
VulDB Meta Temp Score: 4.1

VulDB Base Score: 2.8
VulDB Temp Score: 2.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.5
CNA Vector (Tcpdump): 🔒

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Divide by zero
CWE: CWE-369 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 343118
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-6244

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: libpcap 1.10.7
Patch: 98bb921b141aa642faedbf2ac510541c76499a19

Timelineinfo

04/13/2026 CVE reserved
09/05/2026 +145 days Advisory disclosed
09/05/2026 +0 days VulDB entry created
09/06/2026 +1 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-6244 (🔒)
GCVE (CVE): GCVE-0-2026-6244
GCVE (VulDB): GCVE-100-399360
EUVD: 🔒

Entryinfo

Created: 09/05/2026 21:14
Updated: 09/06/2026 09:54
Changes: 09/05/2026 21:14 (66), 09/05/2026 22:36 (1), 09/06/2026 09:54 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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