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CVE-2023-29534

26
FAUCET Score

CVE-2023-29534 describes a critical vulnerability in Firefox and Focus for Android versions prior to 112, where various techniques could obscure fullscreen notifications, potentially leading to user confusion and spoofing attacks. With a CVSS score of 9.1 (CRITICAL), this vulnerability is network-exploitable with low attack complexity, requiring no user interaction or privileges, and could result in high impact to confidentiality and integrity. Despite its severity, there is currently no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 112.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:android:*:*
< 112.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox_focus:*:*:*:*:*:android:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.70%
Probability of exploitation in next 30 days
EPSS Percentile
49.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0070 is in the 31st percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

mozillavendor investigatingvia nvd_reference
View patch

References

bugzilla.mozilla.org / show_bug.cgi
Permissions Required
bugzilla.mozilla.org / show_bug.cgi
Permissions Required
bugzilla.mozilla.org / show_bug.cgi
Permissions Required
bugzilla.mozilla.org / show_bug.cgi
Permissions Required
bugzilla.mozilla.org / show_bug.cgi
Permissions Required
bugzilla.mozilla.org / show_bug.cgi
Permissions Required
bugzilla.mozilla.org / show_bug.cgi
Permissions Required
mozilla.org / security/advisories/mfsa2023-13
Vendor Advisory