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CVE-2013-1699

15
FAUCET Score

CVE-2013-1699 describes a homograph vulnerability in Mozilla Firefox versions prior to 22.0, specifically affecting the display of Internationalized Domain Names (IDNs) for .com, .name, and .net top-level domains. This flaw allows remote attackers to spoof the address bar, potentially tricking users into believing they are on a legitimate website. With a CVSS score of 5.0 (medium severity), it has a low attack complexity and requires no authentication, but only impacts integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 21.0CPE 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

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.08%
Probability of exploitation in next 30 days
EPSS Percentile
79.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0208 is in the 68th percentile among its peer group of 23,723 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Vendor Patches (1)

mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2013-1699Moderate

Mozilla: Homograph domain spoofing in .com, .net and .name (MFSA 2013-61)

Jun 25, 2013

References

lists.opensuse.org / opensuse-security-announce/2013-07/msg00005.html
bugzilla.mozilla.org / show_bug.cgi
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17296
mozilla.org / security/announce/2013/mfsa2013-61.html
Vendor Advisory
ubuntu.com / usn/USN-1890-1