CVE-2009-3525
HIGH · CVSS 7.2EPSS 1.2%EU EUVD
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.
Key facts
- CVSS score
- 7.2 (v2.0)
- Severity
- HIGH
- CVSS vector
AV:L/AC:L/Au:N/C:C/I:C/A:C- Weakness (CWE)
- CWE-264
- EPSS score
- 1.2% (69th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2009-3507)
- Published
- October 5, 2009
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2009-3507 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- xen / xen
- xen / xen
- xen / xen
References
- http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00002.html
- http://secunia.com/advisories/36908(Vendor Advisory)
- http://www.openwall.com/lists/oss-security/2009/09/25/1(Patch)
- http://www.redhat.com/support/errata/RHSA-2009-1472.html(Vendor Advisory)
- http://www.securityfocus.com/bid/36523(Exploit)
- http://www.securitytracker.com/id?1022950
- http://xenbits.xensource.com/xen-unstable.hg?rev/8f783adc0ee3(Exploit)
- https://bugzilla.redhat.com/show_bug.cgi?id=525740(Exploit, Patch)
- https://bugzilla.redhat.com/show_bug.cgi?id=525740#c0(Exploit, Patch)
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9466
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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