A flaw was found in the grub2-set-bootflag utility of grub2.
Priority LOW 26CWE-267Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
EPSS 0.00324 25th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| [UNKNOWN] | grub2 | all versions | — | No fix listed | CNA |
- grub2 Vendor[UNKNOWN] Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 14
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gnu:grub2:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | GNU |
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | 8.0 | Running on | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:* | 8.1 | Running on | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:* | 8.2 | Running on | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:* | 8.4 | Running on | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:* | 8.6 | Running on | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_eus:8.8:*:*:*:*:*:*:* | 8.8 | Running on | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:* | 8.2 | Running on | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:* | 8.4 | Running on | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:*:*:*:*:*:*:* | 8.6 | Running on | Red Hat |
- cpe:2.3:a:gnu:grub2:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·GNU
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Running on ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:* Versions 8.1 Running on ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:* Versions 8.2 Running on ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:* Versions 8.4 Running on ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:* Versions 8.6 Running on ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_eus:8.8:*:*:*:*:*:*:* Versions 8.8 Running on ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:* Versions 8.2 Running on ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:* Versions 8.4 Running on ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:*:*:*:*:*:*:* Versions 8.6 Running on ·Red Hat
Show 4 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:* | 8.2 | Running on | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:* | 8.4 | Running on | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:*:*:*:*:*:*:* | 8.6 | Running on | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_tus:8.8:*:*:*:*:*:*:* | 8.8 | Running on | Red Hat |
- cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:* Versions 8.2 Running on ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:* Versions 8.4 Running on ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:*:*:*:*:*:*:* Versions 8.6 Running on ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_tus:8.8:*:*:*:*:*:*:* Versions 8.8 Running on ·Red Hat
Remediation
Red Hat 1 advisory
- RHSA-2020:0335 Released 2020-02-04 · Red Hat rating Moderategrub2 security update
- Red Hat Enterprise Linux BaseOS (v. 8) grub2-1:2.02-78.el8_1.1, grub2-common-1:2.02-78.el8_1.1, grub2-efi-aa64-1:2.02-78.el8_1.1 +16
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2020:0335 |
Timeline
- 2026-10-02 Threatist record created from CVE-2019-14865
- 2026-10-03 Alias added: GHSA-5c3m-78cg-3wpv
References
More GNU Grub2 vulnerabilities
- TI-2023-04324 Grub2: out-of-bounds write at fs/ntfs.c may lead to unsigned code execution CVSS 3.1HIGH 7.8
- TI-2015-06891 Multiple integer underflows in Grub2 1.98 through 2.02 allow physically proximate… CVSS 3.1HIGH 7.4
- TI-2024-37620 Heap-based buffer overflow in GNU GRUB2 CVSS 3.1HIGH 8.8
- TI-2022-11367 Integer underflow in GNU GRUB CVSS 3.1HIGH 8.1
- TI-2022-02403 Heap-based buffer overflow in grub2 CVSS 3.1HIGH 8.6
- TI-2020-08612 Buffer overflow in Grub CVSS 3.1HIGH 8.2
Sources
- CVE-2019-14865 · CVE Program
- CVE-2019-14865 · NVD
- FIRST EPSS
- GHSA-5c3m-78cg-3wpv · GitHub Advisory Database · CC BY 4.0
- CVE-2019-14865 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences