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CVE-2019-14865

20
FAUCET Score

CVE-2019-14865 describes a flaw in the grub2-set-bootflag utility within grub2, affecting various GNU and Red Hat Enterprise Linux distributions. A local attacker could exploit this by running the utility under resource pressure, leading to truncation of grub2 configuration files and rendering the system unbootable. This vulnerability has a CVSS score of 5.9 (Medium) due to its local attack vector and high impact on availability, though it requires user interaction. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:gnu:grub2:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.9MEDIUM

CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.5
Impact Score
4.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.33%
Probability of exploitation in next 30 days
EPSS Percentile
25.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0033 is in the 64th percentile among its peer group of 382 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 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 (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: grub2-1:2.02-78.el8_1.1
View patch

Vendor Advisories (1)

redhatCVE-2019-14865Moderate

grub2: grub2-set-bootflag utility causes grubenv corruption rendering the system non-bootable

Nov 25, 2019

References

access.redhat.com / errata/RHSA-2020:0335
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
seclists.org / oss-sec/2019/q4/101
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2024/02/06/3
Third Party Advisory