CVE•Published 2025-11-18•Modified 2026-05-19•0 articles on news•6 live references•NVD data
CVE-2025-54771
Vulnerability data via NVD (ingested)
CVSS v3.1
4.9
MEDIUM
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
EPSS percentile
4
Exploit Prediction Scoring System · top 96% of all CVEs
Weaknesses (CWE)
Description
A use-after-free vulnerability has been identified in the GNU GRUB (Grand Unified Bootloader). The flaw occurs because the file-closing process incorrectly retains a memory pointer, leaving an invalid reference to a file system structure. An attacker could exploit this vulnerability to cause grub to crash, leading to a Denial of Service. Possible data integrity or confidentiality compromise is not discarded.
Timeline
Published 2025-11-18
Modified 2026-05-19
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2025-54771Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2025-54771Censys host search filtered to this CVE id.
grep.app
CVE-2025-54771Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2025-54771GitHub code search for direct mentions.
Google dork
"CVE-2025-54771" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2025-54771 on GitHub.
We haven't classified any articles referencing CVE-2025-54771 yet. The external references above still apply.