CVE-2023-34414
LOW
INFO
Priority: 0.03
BB Relevance:
46/100
Published: 2023-06-19
Modified: 2026-10-24
First seen: 2026-10-29
Status: active
Attack Surface
Network
No Auth
CVSS Vector Breakdown
AV:
Network
AC:
High
PR:
None
UI:
Required
S:
Unchanged
C:
None
I:
None
A:
Low
Description
The error page for sites with invalid TLS certificates was missing the activation-delay Firefox uses to protect prompts and permission dialogs from attacks that exploit human response time delays. If a malicious page elicited user clicks in precise locations immediately before navigating to a site with a certificate error and made the renderer extremely busy at the same time, it could create a gap between when the error page was loaded and when the display actually refreshed. With the right timing the elicited clicks could land in that gap and activate the button that overrides the certificate error for that site. This vulnerability affects Firefox ESR < 102.12, Firefox < 114, and Thunderbird < 102.12.
Weakness Classification (1)
Affected Software (3)
| Vendor | Product | Version |
|---|---|---|
| mozilla | firefox | < 114.0 |
| mozilla | firefox_esr | < 102.12 |
| mozilla | thunderbird | < 102.12 |
References & Advisories (6)
Vendor Advisory
Vendor Advisory
Vendor Advisory
Permissions Required