PT-2026-61873 · Mozilla+1 · Thunderbird Esr+2

CVE-2026-16361

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Published

2026-07-21

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Updated

2026-08-10

CVSS v3.1

10

Critical

VectorAV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Thunderbird ESR versions prior to 140.13 Firefox ESR versions prior to 115.38 Firefox ESR versions prior to 140.13
Description Memory safety bugs exist that may lead to memory corruption. These issues could potentially be exploited to execute arbitrary code.
Recommendations Update Thunderbird ESR to version 140.13. Update Firefox ESR to version 115.38. Update Firefox ESR to version 140.13.

Fix

Buffer Overflow

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Weakness Enumeration

Related Identifiers

ALSA-2026:47101
ALSA-2026:47104
ALSA-2026:47105
ALSA-2026:49621
ALSA-2026:49921
ALSA-2026:49922
CVE-2026-16361
OESA-2026-3195
OESA-2026-3196
OESA-2026-3225
OESA-2026-3226
OESA-2026-3227
OESA-2026-3228
OPENSUSE-SU-2026:11329-1
OPENSUSE-SU-2026:11359-1
OPENSUSE-SU-2026:21519-1
SUSE-SU-2026:23115-1
SUSE-SU-2026:23137-1
SUSE-SU-2026:3200-1
SUSE-SU-2026:3221-1
SUSE-SU-2026:3546-1

Affected Products

Firefox Esr
Rocky Linux
Thunderbird Esr