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CVE-2015-0823

20
FAUCET Score

CVE-2015-0823 describes multiple use-after-free vulnerabilities in OpenType Sanitiser, affecting Mozilla Firefox before version 36.0 and other products utilizing ots. These flaws, stemming from incorrect macro expansion in the ots::ots_gasp_parse function, could allow remote attackers to trigger problematic Developer Console information or potentially have other unspecified impacts. With a CVSS score of 7.5, this vulnerability is rated as high severity, indicating a network-based attack with low complexity that could lead to partial confidentiality, integrity, and availability compromise. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
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:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:opentype_sanitiser_project:opentype_sanitiser:*:*:*:*:*:*:*:*
<= 35.0.1CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.89%
Probability of exploitation in next 30 days
EPSS Percentile
89.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0389 is in the 81st percentile among its peer group of 51,506 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, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2015-0823Low

Mozilla: Use-after-free in Developer Console date with OpenType Sanitiser (MFSA 2015-23)

Feb 24, 2015

References

lists.opensuse.org / opensuse-security-announce/2015-03/msg00000.html
Third Party Advisory
lists.opensuse.org / opensuse-updates/2015-03/msg00067.html
Third Party Advisory
bugzilla.mozilla.org / show_bug.cgi
Issue Tracking
github.com / khaledhosny/ots/commit/003c62d28ae438aa8943cb31535563397f838a2c
Issue TrackingPatch
security.gentoo.org / glsa/201504-01
mozilla.org / security/announce/2015/mfsa2015-23.html
Vendor Advisory
oracle.com / technetwork/topics/security/bulletinapr2016-2952098.html
securityfocus.com / bid/72754
Third Party AdvisoryVDB Entry
securitytracker.com / id/1031791
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-2505-1
Third Party Advisory