Vulnerability Intelligence Report
CVE-2022-2601
A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this vulnerability to circumvent the secure boot mechanism.
No Active Exploit Signals
CVSS Base Score
8.6
HIGH
Exploitability:1.9
Impact Score:6.1
EPSS Probability:0.51%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-122 ↗CWE-122->CWE-787
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| gnu | grub2 | all |
| fedoraproject | fedora | 37 |
| redhat | enterprise_linux_eus | 9.0 |
| redhat | enterprise_linux_for_power_little_endian_eus | 9.0 |
| redhat | enterprise_linux_server_aus | 8.2 |
| redhat | enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions | 8.1, 8.2, 9.0 |
| redhat | enterprise_linux_server_tus | 8.2 |
| redhat | enterprise_linux_server_update_services_for_sap_solutions | 8.1, 8.2, 9.0 |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.514%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Red Hat, Inc. · Vendor · USA |
| Reserved | 2022-08-01T00:00:00 |
| Published | 2022-12-14T00:00:00 |
| Last Updated | 2026-05-27T14:04:59 |
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