What is CVE-2025-29481?

CVE-2025-29481 is a medium-severity vulnerability in Libbpf Project, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.2/10. Published 2025-04-07.

How severe is CVE-2025-29481?

Medium severity. CVSS v3 base score is 6.2 out of 10.

Is CVE-2025-29481 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Libbpf Project

CVE-2025-29481

Buffer Overflow vulnerability in libbpf 1.5.0 allows a local attacker to execute arbitrary code via the bpf_object__init_prog` function of libbpf. This has been disputed by third parties who assert that "no one in their sane mind should be passing untrusted ELF files into libbpf while running under root."

Vulnerability class: Buffer Overflow

EPSS: 0.002 (14.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Libbpf_project Libbpf — versions 1.5.0
N/a — versions n/a

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

lmarch2/poc

References

cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-29481?: CVE-2025-29481 is a medium-severity vulnerability in Libbpf Project, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.2/10. Published 2025-04-07.
How severe is CVE-2025-29481?: Medium severity. CVSS v3 base score is 6.2 out of 10.
Is CVE-2025-29481 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.