Vulnerability · Published Sep 22, 2025 · Assigned by VulDB
CVE-2025-10823axboe fio options.c str_buffer_pattern_cb null pointer dereference
Low 3.3
In plain English
A low-severity null pointer dereference in fio from axboe. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 4% of all known vulnerabilities).
Severity (CVSS 3.1)3.3Low
Exploit odds (30 days)0.2%top 95.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A vulnerability was found in axboe fio up to 3.41. This affects the function str_buffer_pattern_cb of the file options.c. Performing manipulation results in null pointer dereference. The attack must be initiated from a local position. The exploit has been made public and could be used.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | fio | no fix listed | DEBIAN-CVE-2025-10823 |
| Debian:13 | fio | no fix listed | DEBIAN-CVE-2025-10823 |
| Debian:14 | fio | no fix listed | DEBIAN-CVE-2025-10823 |
| Ubuntu:22.04:LTS | fio | no fix listed | UBUNTU-CVE-2025-10823 |
| Ubuntu:24.04:LTS | fio | no fix listed | UBUNTU-CVE-2025-10823 |
| Ubuntu:25.10 | fio | no fix listed | UBUNTU-CVE-2025-10823 |
| Ubuntu:26.04:LTS | fio | no fix listed | UBUNTU-CVE-2025-10823 |
| Ubuntu:26.10 | fio | no fix listed | UBUNTU-CVE-2025-10823 |
Affected products (as reported)
Weakness: CWE-476, CWE-404 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
References
- VDB-325180 | axboe fio options.c str_buffer_pattern_cb null pointer dereference vdb-entry, technical-description
- VDB-325180 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #654069 | Jens Axboe Fio 3.41 / master commit 84787ad NULL Pointer Dereference third-party-advisory
- https://github.com/axboe/fio/issues/1982 issue-tracking
- https://github.com/user-attachments/files/22266964/poc.zip exploit