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CVE-2018-12381

20
FAUCET Score

CVE-2018-12381 describes a vulnerability in Firefox (ESR < 60.2, < 62) on Windows systems with Outlook installed. It allows a malicious actor to trigger an unintended page navigation if a user drags and drops an Outlook email into the browser, as the email's mail columns can be misinterpreted as a URL. Rated as MEDIUM severity (CVSS 5.3), this vulnerability has a low impact on integrity and requires no user interaction for exploitation. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 60.2.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
< 62.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.84%
Probability of exploitation in next 30 days
EPSS Percentile
76.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0184 is in the 64th percentile among its peer group of 23,723 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (1)

mozillapatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2018-12381Low

Mozilla: Dragging and dropping Outlook email message results in page navigation

Sep 5, 2018

References

bugzilla.mozilla.org / show_bug.cgi
Issue TrackingPatchVendor Advisory
security.gentoo.org / glsa/201810-01
Third Party Advisory
mozilla.org / security/advisories/mfsa2018-20
Vendor Advisory
mozilla.org / security/advisories/mfsa2018-21
Vendor Advisory
securityfocus.com / bid/105280
Third Party AdvisoryVDB Entry
securitytracker.com / id/1041610
Third Party AdvisoryVDB Entry