Detections
Analytics

Echo: qtbase-opensource-src: security update to 5.15.8+dfsg-11+deb12u3

low Tenable Cloud Security Plugin ID 462563

Description

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

 - There is a "Use After Free" vulnerability in Qt's QHttp2ProtocolHandler in the QtNetwork module. This only
 affects HTTP/2 handling, HTTP handling is not affected by this at all. This happens due to a race
 condition between how QHttp2Stream uploads the body of a POST request and the simultaneous handling of
 HTTP error responses. This issue only affects Qt 6.9.0 and has been fixed for Qt 6.9.1. (CVE-2025-5991)

Solution

Update the qtbase-opensource-src library and its related packages to version 5.15.8+dfsg-11+deb12u3 or later.

See Also

https://advisory.echohq.com/cve/CVE-2025-5991

Plugin Details

Severity: Low

ID: 462563

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.15

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2025-5991

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

CVSS v4

Risk Factor: Low

Base Score: 2.1

Threat Score: 0.5

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 1/29/2026

Vulnerability Publication Date: 6/11/2025

Reference Information

CVE: CVE-2025-5991