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CVE-2015-3239

12
FAUCET Score

CVE-2015-3239 is an off-by-one error in the dwarf_to_unw_regnum function within libunwind 1.1, allowing local users to achieve unspecified impact through invalid dwarf opcodes. This vulnerability has a low severity CVSS score of 3.3, indicating a local attack vector with medium complexity and potential for partial confidentiality and integrity impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.1CPE matchmatch criteria
cpe:2.3:a:libunwind_project:libunwind:1.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

3.3LOW

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.50%
Probability of exploitation in next 30 days
EPSS Percentile
39.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0050 is in the 87th percentile among its peer group of 747 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, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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 (8)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6Fixed in: libunwind-0:1.1-4.1.el6ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7Fixed in: libunwind-0:1.1-4.1.el7ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7Fixed in: libunwind-0:1.1-4.1.el7ost
View patch
redhatend of lifevia redhat_api
Product: Red Hat Ceph Storage 1.1Fixed in: libunwind
redhatend of lifevia redhat_api
Product: Red Hat Ceph Storage 1.2Fixed in: libunwind
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 6 (Juno) InstallerFixed in: libunwind
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: mongodb24-libunwind
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-mongodb26-libunwind

Vendor Advisories (1)

redhatCVE-2015-3239Low

libunwind: off-by-one in dwarf_to_unw_regnum()

Jun 20, 2015

References

git.savannah.gnu.org / cgit/libunwind.git/commit
rhn.redhat.com / errata/RHSA-2015-1675.html
Vendor Advisory
rhn.redhat.com / errata/RHSA-2015-1768.html
rhn.redhat.com / errata/RHSA-2015-1769.html
bugzilla.redhat.com / show_bug.cgi
Exploit
securityfocus.com / bid/76707