Vulnerability · Published Jul 27, 2026 · Assigned by mitre
CVE-2025-63913
High 7.5
In plain English
A high-severity uncontrolled resource consumption in the opensbi package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.5%top 60.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An issue was discovered in OpenSBI 1.3 allowing attackers to cause a denial of service via crafted request to the SBI function #2 or the 'Find and configure a matching counter' function of SBI PMU extension.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | opensbi | no fix listed | DEBIAN-CVE-2025-63913 |
| Debian:13 | opensbi | no fix listed | DEBIAN-CVE-2025-63913 |
| Debian:14 | opensbi | 1.7-1 | DEBIAN-CVE-2025-63913 |
| Ubuntu:22.04:LTS | opensbi | 1.3-1ubuntu0.22.04.3 | UBUNTU-CVE-2025-63913 |
| Ubuntu:22.04:LTS | opensbi | 1.3-1ubuntu0.22.04.3 | USN-8853-1 |
Affected products (as reported)
Weakness: CWE-400 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H