CVE-2025-61553: n/a
Source CVE Database V5
Not known to be exploited · CVSS 8.2 High.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 16 Oct 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.
What to do
AI-suggested
1. Restrict local access to guest virtual machines to trusted users only, minimizing the risk of a local attacker exploiting this vulnerability. 2. Monitor and audit PCI configuration space accesses within guest VMs to detect anomalous or suspicious behavior indicative of exploitation attempts. 3. Implement strict access controls and segmentation to limit the ability of compromised guests to affect the host or other guests. 4. Apply any available patches or updates from BitVisor maintainers as soon as they are released; if no patches exist, consider disabling or limiting VirtIO network device emulation if feasible. 5. Employ runtime security monitoring tools capable of detecting hypervisor crashes or unusual memory corruption patterns. 6. Conduct thorough security reviews and penetration testing focused on hypervisor and virtualization components to identify and remediate similar vulnerabilities. 7. Maintain up-to-date backups and incident response plans to quickly recover from potential denial of service or compromise scenarios.
Description
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 space access. Given it's a heap overflow in a privileged hypervisor context, exploitation may enable arbitrary code execution or guest-to-host privilege escalation.