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CVE-2015-5281

12
FAUCET Score

CVE-2015-5281 describes a Secure Boot bypass vulnerability in the grub2 package on Red Hat Enterprise Linux 7 UEFI systems. Local users or physically proximate attackers could execute unverified code by manipulating multiboot modules in the configuration file or via the boot menu. With a CVSS score of 2.6 (AV:L/AC:H/Au:N/C:P/I:P/A:N), this vulnerability requires local access and high attack complexity to achieve partial confidentiality and integrity impact. There is no evidence of active exploitation, no public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.6LOW

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
1.9
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.34%
Probability of exploitation in next 30 days
EPSS Percentile
25.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0034 is in the 41st 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 (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: grub2-1:2.02-0.29.el7
View patch

Vendor Advisories (1)

redhatCVE-2015-5281Low

grub2: modules built in on EFI builds that allow loading arbitrary code, circumventing secure boot

Nov 17, 2015

References

lists.fedoraproject.org / pipermail/package-announce/2015-November/172611.html
lists.fedoraproject.org / pipermail/package-announce/2015-November/172942.html
rhn.redhat.com / errata/RHSA-2015-2401.html
Vendor Advisory
bugzilla.redhat.com / show_bug.cgi
oracle.com / technetwork/topics/security/linuxbulletinoct2015-2719645.html
securityfocus.com / bid/77983
securitytracker.com / id/1034198