CVE-2023-53676
Medium
Elevated severity or exploit probability.
CVSS base
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
0.3%
24.6th percentile
CISA KEV
Not listed
Weakness / dates
CWE-787
Published 2025-10-07 · modified 2026-08-04
CVSS breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
| Attack Vector | N | Network |
| Attack Complexity | L | Low |
| Privileges Required | N | None |
| User Interaction | R | Required |
| Scope | U | Unchanged |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | H | High |
Timeline
- 2025-10-07 — Published (NVD)
- 2026-08-04 — Last modified (NVD)
Description
In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() The function lio_target_nacl_info_show() uses sprintf() in a loop to print details for every iSCSI connection in a session without checking for the buffer length. With enough iSCSI connections it's possible to overflow the buffer provided by configfs and corrupt the memory. This patch replaces sprintf() with sysfs_emit_at() that checks for buffer boundries.
Affected
References
- https://git.kernel.org/stable/c/0cac6cbb9908309352a5d30c1876882771d3da50
- https://git.kernel.org/stable/c/114b44dddea1f8f99576de3c0e6e9059012002fc
- https://git.kernel.org/stable/c/2cbe6a88fbdd6e8aeab358eef61472e2de43d6f6
- https://git.kernel.org/stable/c/4738bf8b2d3635c2944b81b2a84d97b8c8b0978d
- https://git.kernel.org/stable/c/5353df78c22623b42a71d51226d228a8413097e2
- https://git.kernel.org/stable/c/801f287c93ff95582b0a2d2163f12870a2f076d4
- https://git.kernel.org/stable/c/bbe3ff47bf09db8956bc2eeb49d2d514d256ad2a
- https://git.kernel.org/stable/c/df349e84c2cb0dd05d98c8e1189c26ab4b116083