Detections
Analytics

Echo: libpcap: security update to 1.10.5-2+e3

high Tenable Cloud Security Plugin ID 457043

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - libpcap BPF interpreter treats the offset in the 'ja L' BPF instruction as a signed integer to implement
 looping via backward jumps, but it does not limit the number of loop iterations. A crafted filter program
 or the 'protochain' primitive used on a crafted network packet can cause the interpreter to loop
 infinitely. (CVE-2026-6554)

Solution

Update the libpcap library and its related packages to version 1.10.5-2+e3 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-6554

Plugin Details

Severity: High

ID: 457043

Version: Revision 1.2

Type: Local

Published: 10/2/2026

Updated: 10/23/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.71

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-6554

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 9/6/2026

Vulnerability Publication Date: 9/5/2026

Reference Information

CVE: CVE-2026-6554

IAVA: 2026-A-0971