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CVE-2009-3525
The pyGrub boot loader in Xen 3.0.3, 3.3.0, and Xen-3.3.1 does not support the password option in grub.conf for para-virtualized guests,…
High7.2EPSS 1.2%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The pyGrub boot loader in Xen 3.0.3, 3.3.0, and Xen-3.3.1 does not support the password option in grub.conf for para-virtualized guests, which allows attackers with access to the para-virtualized guest console to boot the guest or modify the guest's kernel boot parameters without providing the expected password.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 1.2% · top 31% of all CVEs (6 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.2.
Weakness
Affected products
n/a
- affected n/a
References (10)
- oval:org.mitre.oval:def:9466 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- [oss-security] 20090925 CVE Request -- Xen -- PyGrub (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 36908 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=525740#c0 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2009:1472 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- SUSE-SR:2010:012 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 36523 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 1022950 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=525740 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://xenbits.xensource.com/xen-unstable.hg?rev/8f783adc0ee3 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2009-3525)Record last updated .