Echo: qtbase-opensource-src: security update to 5.15.8+dfsg-11+deb12u3-e2

high Tenable Cloud Security Plugin ID 457564

Description

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

- An issue was found in the private API function qDecodeDataUrl() in QtCore, which is used in QTextDocument
and QNetworkReply, and, potentially, in user code. If the function was called with malformed data, for
example, an URL that contained a "charset" parameter that lacked a value (such as "data:charset,"), and Qt
was built with assertions enabled, then it would hit an assertion, resulting in a denial of service
(abort). This impacts Qt up to 5.15.18, 6.0.0->6.5.8, 6.6.0->6.8.3 and 6.9.0. This has been fixed in
5.15.19, 6.5.9, 6.8.4 and 6.9.1. (CVE-2025-5455)

Solution

Update the qtbase-opensource-src library and its related packages to version 5.15.8+dfsg-11+deb12u3-e2 or later.

See Also

https://advisory.echohq.com/cve/CVE-2025-5455

Plugin Details

Severity: High

ID: 457564

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2025-5455

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

CVSS v4

Risk Factor: High

Base Score: 8.4

Threat Score: 5.7

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 1/29/2026

Vulnerability Publication Date: 6/2/2025

Reference Information

CVE: CVE-2025-5455