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CVE-2013-1673

21
FAUCET Score

CVE-2013-1673 describes a privilege escalation vulnerability in the Mozilla Updater component of Firefox versions prior to 21.0 on Windows. This flaw stems from improper maintenance of Mozilla Maintenance Service registry entries during upgrades from older Firefox versions, allowing local users with write access to a "trusted path" to gain elevated privileges. With a CVSS score of 6.9, this vulnerability has a local attack vector, medium attack complexity, and high impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 20.0.1CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
19.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:19.0:*:*:*:*:*:*:*
19.0.1CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:19.0.1:*:*:*:*:*:*:*
19.0.2CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:19.0.2:*:*:*:*:*:*:*
20.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:20.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.9MEDIUM

AV:L/AC:M/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.26%
Probability of exploitation in next 30 days
EPSS Percentile
17.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0026 is in the 8th percentile among its peer group of 1,595 CVEs.

Social Chatter

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

Vendor Patches (1)

mozillavendor investigatingvia nvd_reference
View patch

References

bugzilla.mozilla.org / show_bug.cgi
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17125
mozilla.org / security/announce/2013/mfsa2013-45.html
Vendor Advisory