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SUSE SLED15 / SLES15 / openSUSE 15 Security Update : MozillaThunderbird (SUSE-SU-2026:0388-1)

medium Nessus Plugin ID 298234

Synopsis

The remote SUSE host is missing a security update.

Description

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:0388-1 advisory.

 Update to Mozilla Thunderbird 140.7.1 MFSA 2026-08 (bsc#1257397):

 - CVE-2026-0818: CSS-based exfiltration of the content from partially encrypted emails when allowing remote content

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected MozillaThunderbird, MozillaThunderbird-translations-common and / or MozillaThunderbird-translations- other packages.

See Also

https://bugzilla.suse.com/1257397

http://www.nessus.org/u?f42839e6

https://www.suse.com/security/cve/CVE-2026-0818

Plugin Details

Severity: Medium

ID: 298234

File Name: suse_SU-2026-0388-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 2/6/2026

Updated: 2/6/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.9

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-0818

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.8

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

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

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:mozillathunderbird, p-cpe:/a:novell:suse_linux:mozillathunderbird-translations-common, p-cpe:/a:novell:suse_linux:mozillathunderbird-translations-other

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 2/5/2026

Vulnerability Publication Date: 1/27/2026

Reference Information

CVE: CVE-2026-0818

SuSE: SUSE-SU-2026:0388-1