CVE-2023-0616

MEDIUM
MEDIUM Priority: 0.03 BB Relevance: 63/100
Published: 2023-06-02 Modified: 2026-10-24 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Required
S: Unchanged
C: None
I: None
A: High

Description

If a MIME email combines OpenPGP and OpenPGP MIME data in a certain way Thunderbird repeatedly attempts to process and display the message, which could cause Thunderbird's user interface to lock up and no longer respond to the user's actions. An attacker could send a crafted message with this structure to attempt a DoS attack. This vulnerability affects Thunderbird < 102.8.

Weakness Classification (2)

Affected Software (1)

VendorProductVersion
mozilla thunderbird < 102.8

References & Advisories (2)

https://bugzilla.mozilla.org/show_bug.cgi?id=1806507
Issue Tracking Permissions Required Vendor Advisory

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.49%
Raw Score 0.004900
Percentile 42.1%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00490
2026-10-28
0.00490

Intelligence Sources

nvd ref →