What is CVE-2025-61553?

CVE-2025-61553 is a high-severity vulnerability in N/a, classified under Heap-based Buffer Overflow. CVSS score: 8.2/10. Published 2025-10-16.

How severe is CVE-2025-61553?

High severity. CVSS v3 base score is 8.2 out of 10.

Is CVE-2025-61553 known to be exploited?

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

Buffer overflow in N/a

CVE-2025-61553

An out-of-bounds write in VirtIO network device emulation in BitVisor from commit 108df6 (2020-05-20) to commit 480907 (2025-07-06) allows local attackers to cause a denial of service (host hypervisor crash) via a crafted PCI configuration…

Vulnerability class: Buffer Overflow

EPSS: 0.002 (9.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

Affected products

N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

retrage/advisories

References

Frequently asked questions

What is CVE-2025-61553?: CVE-2025-61553 is a high-severity vulnerability in N/a, classified under Heap-based Buffer Overflow. CVSS score: 8.2/10. Published 2025-10-16.
How severe is CVE-2025-61553?: High severity. CVSS v3 base score is 8.2 out of 10.
Is CVE-2025-61553 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.