CVE-2026-4647
Low
No strong exploitation signal.
CVSS base
6.1
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
EPSS — probability of exploitation (30 days)
0.2%
6.5th percentile
CISA KEV
Not listed
Weakness / dates
CWE-125
Published 2026-03-23 · modified 2026-09-01
CVSS breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
| Attack Vector | L | Local |
| Attack Complexity | L | Low |
| Privileges Required | N | None |
| User Interaction | R | Required |
| Scope | U | Unchanged |
| Confidentiality | L | Low |
| Integrity | N | None |
| Availability | H | High |
Timeline
- 2026-03-23 — Published (NVD)
- 2026-09-01 — Last modified (NVD)
Description
A flaw was found in the GNU Binutils BFD library, a widely used component for handling binary files such as object files and executables. The issue occurs when processing specially crafted XCOFF object files, where a relocation type value is not properly validated before being used. This can cause the program to read memory outside of intended bounds. As a result, affected tools may crash or expose unintended memory contents, leading to denial-of-service or limited information disclosure risks.