Detections
Analytics

Echo: libpcap: security update to 1.10.5-2+e2

high Tenable Cloud Security Plugin ID 462791

Description

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

 - In BPF instructions that load/store a value from/to a scratch memory register the register index is an
 unsigned 32-bit integer and must not exceed 15, but libpcap BPF interpreter does not validate the value.
 In particular uncommon use cases a crafted filter program can cause the interpreter to try reading and
 writing the OS process memory in the 16GiB starting at the current stack frame on 64-bit architectures and
 in the entire address space on 32-bit architectures. (CVE-2026-0799)

Solution

Update the libpcap library and its related packages to version 1.10.5-2+e2 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-0799

Plugin Details

Severity: High

ID: 462791

Version: Revision 1.2

Type: Local

Published: 10/2/2026

Updated: 10/5/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93.17

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2026-0799

CVSS v3

Risk Factor: High

Base Score: 8.7

Temporal Score: 7.6

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:H/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-2026-0799

IAVA: 2026-A-0971