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CVE Record

CVE-2019-14865: A flaw was found in the grub2-set-bootflag utility of grub2.

A flaw was found in the grub2-set-bootflag utility of grub2. A local attacker could run this utility under resource pressure (for example by setting RLIMIT), causing grub2 configuration files to be truncated and leaving the system unbootable on subsequent reboots.

MediumCVSS 5.9Not KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

This vulnerability can let a local user cause bootloader configuration damage so the machine may not start after a reboot. The business impact is downtime and recovery work, not data theft. It matters most on shared Linux systems or environments where untrusted users can run local utilities. Exposure is most plausible on Linux systems using GRUB2 where local users can execute the affected utility. The provided sources identify grub2 generally, but do not enumerate every distribution, version, or configuration affected. Treat as a moderate operational resilience issue. Prioritize shared Linux servers, sensitive production hosts, and systems with broad local user access. Patch during maintenance windows and verify boot recovery readiness. Mitigation focus: Inventory Linux systems using GRUB2 and identify where grub2-set-bootflag is present.; Compare installed GRUB2 packages against vendor advisories, including RHSA-2020:0335 where applicable.; Apply vendor-provided GRUB2 updates through normal package management..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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ATT&CK lookup starting points

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cwe · low confidence lookup

CWE-267: Exact CWE lookup

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cve · low confidence lookup

CVE-2019-14865 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.9 (3.0)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
5.9CVSS 3.0MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H1.54Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

5.9Medium
CVSS 3.0 vector shape for CVE-2019-14865Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
[UNKNOWN]grub2n/aListed
Weakness

CWE details

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CWE-267 · source CWE mapping

Privilege Defined With Unsafe Actions

Privilege Defined With Unsafe Actions represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.