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CVE-2015-0832

15
FAUCET Score

CVE-2015-0832 describes a vulnerability in Mozilla Firefox versions prior to 36.0, affecting various Canonical, Mozilla, and OpenSUSE distributions. This flaw allows man-in-the-middle attackers to bypass HTTP Public Key Pinning (HPKP) and HTTP Strict Transport Security (HSTS) by exploiting Firefox's failure to properly recognize domain name equivalence with and without a trailing dot. The vulnerability has a CVSS score of 5.0, indicating a medium severity with low attack complexity and potential for integrity impact, as it allows for the circumvention of security mechanisms. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
13.1CPE matchmatch criteria
cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*
13.2CPE matchmatch criteria
cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
14.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*

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
1.05%
Probability of exploitation in next 30 days
EPSS Percentile
60.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0105 is in the 38th 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-2015-0832Moderate

Mozilla: Appended period to hostnames can bypass HPKP and HSTS protections (MFSA 2015-13)

Feb 24, 2015

References

lists.opensuse.org / opensuse-security-announce/2015-03/msg00000.html
lists.opensuse.org / opensuse-updates/2015-03/msg00067.html
bugzilla.mozilla.org / show_bug.cgi
security.gentoo.org / glsa/201504-01
mozilla.org / security/announce/2015/mfsa2015-13.html
Vendor Advisory
oracle.com / technetwork/topics/security/bulletinapr2016-2952098.html
securityfocus.com / bid/72752
ubuntu.com / usn/USN-2505-1