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CVE-2008-1619· NVD / CVE Program· CNA mitre

The ssm_i emulation in Xen 5.1 on IA64 architectures allows attackers to cause a denial of service (dom0 panic) via certain traffic, as demo

Noroxi assessment

Priority: Monitor (action score 17/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 1.3% (FIRST EPSS); higher than 70% of all records.
  • Fixed version: kernel (Red Hat:enterprise_linux:5::client) 0:2.6.18-53.1.19.el5; kernel-debug (Red Hat:enterprise_linux:5::client) 0:2.6.18-53.1.19.el5; kernel-debug-debuginfo (Red Hat:enterprise_linux:5::client) 0:2.6.18-53.1.19.el5.

Low priority for now. Upgrade to kernel (Red Hat:enterprise_linux:5::client) 0:2.6.18-53.1.19.el5; kernel-debug (Red Hat:enterprise_linux:5::client) 0:2.6.18-53.1.19.el5; kernel-debug-debuginfo (Red Hat:enterprise_linux:5::client) 0:2.6.18-53.1.19.el5 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

The ssm_i emulation in Xen 5.1 on IA64 architectures allows attackers to cause a denial of service (dom0 panic) via certain traffic, as demonstrated using an FTP stress test tool.

MediumCVSS 4.3 · v2.0—No exploit Fix available
Published
Apr 2, 2008
Updated
Jun 16, 2026
EPSS
1.3% · 70th percentile
CWE
—

Report tools

JSON

Action score

17

Monitor

Low priority for now.

CVSS
17 / 40 · 4.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.3%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
xensource incxen

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • xensource inc xen5.1

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Red Hat:enterprise_linux:5::clientkernelbefore 0:2.6.18-53.1.19.el50:2.6.18-53.1.19.el5
Red Hat:enterprise_linux:5::clientkernel-debugbefore 0:2.6.18-53.1.19.el50:2.6.18-53.1.19.el5
Red Hat:enterprise_linux:5::clientkernel-debug-debuginfobefore 0:2.6.18-53.1.19.el50:2.6.18-53.1.19.el5
Red Hat:enterprise_linux:5::clientkernel-debug-develbefore 0:2.6.18-53.1.19.el50:2.6.18-53.1.19.el5
Red Hat:enterprise_linux:5::clientkernel-debuginfobefore 0:2.6.18-53.1.19.el50:2.6.18-53.1.19.el5
Red Hat:enterprise_linux:5::clientkernel-debuginfo-commonbefore 0:2.6.18-53.1.19.el50:2.6.18-53.1.19.el5
Red Hat:enterprise_linux:5::clientkernel-develbefore 0:2.6.18-53.1.19.el50:2.6.18-53.1.19.el5
Red Hat:enterprise_linux:5::clientkernel-docbefore 0:2.6.18-53.1.19.el50:2.6.18-53.1.19.el5
Red Hat:enterprise_linux:5::clientkernel-headersbefore 0:2.6.18-53.1.19.el50:2.6.18-53.1.19.el5
Red Hat:enterprise_linux:5::clientkernel-PAEbefore 0:2.6.18-53.1.19.el50:2.6.18-53.1.19.el5
Red Hat:enterprise_linux:5::clientkernel-PAE-debuginfobefore 0:2.6.18-53.1.19.el50:2.6.18-53.1.19.el5
Red Hat:enterprise_linux:5::clientkernel-PAE-develbefore 0:2.6.18-53.1.19.el50:2.6.18-53.1.19.el5
Red Hat:enterprise_linux:5::clientkernel-xenbefore 0:2.6.18-53.1.19.el50:2.6.18-53.1.19.el5
Red Hat:enterprise_linux:5::clientkernel-xen-debuginfobefore 0:2.6.18-53.1.19.el50:2.6.18-53.1.19.el5
Red Hat:enterprise_linux:5::clientkernel-xen-develbefore 0:2.6.18-53.1.19.el50:2.6.18-53.1.19.el5
Red Hat:enterprise_linux:5::serverkernel-kdumpbefore 0:2.6.18-53.1.19.el50:2.6.18-53.1.19.el5
Red Hat:enterprise_linux:5::serverkernel-kdump-debuginfobefore 0:2.6.18-53.1.19.el50:2.6.18-53.1.19.el5
Red Hat:enterprise_linux:5::serverkernel-kdump-develbefore 0:2.6.18-53.1.19.el50:2.6.18-53.1.19.el5

Same product

xensource inc: all records

Other highest-scoring records for the same primary product.

  • CVE-2007-4993pygrub (tools/pygrub/src/GrubConf.py) in Xen 3.0.3, when booting a guest domain, allows local users with elevated privileges in the guest do
    27Monitor
  • CVE-2007-5906Xen 3.1.1 allows virtual guest system users to cause a denial of service (hypervisor crash) by using a debug register (DR7) to set certain b
    18Monitor
  • CVE-2007-5907Xen 3.1.1 does not prevent modification of the CR4 TSC from applications, which allows pv guests to cause a denial of service (crash).
    18Monitor
  • CVE-2007-6207Xen 3.x, possibly before 3.1.2, when running on IA64 systems, does not check the RID value for mov_to_rr, which allows a VTi domain to read
    8Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
red hat:kernel0:2.6.18-53.1.19.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:kernel-debug0:2.6.18-53.1.19.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:kernel-debug-debuginfo0:2.6.18-53.1.19.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:kernel-debug-devel0:2.6.18-53.1.19.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:kernel-debuginfo0:2.6.18-53.1.19.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:kernel-debuginfo-common0:2.6.18-53.1.19.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:kernel-devel0:2.6.18-53.1.19.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:kernel-doc0:2.6.18-53.1.19.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:kernel-headers0:2.6.18-53.1.19.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:kernel-PAE0:2.6.18-53.1.19.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:kernel-PAE-debuginfo0:2.6.18-53.1.19.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:kernel-PAE-devel0:2.6.18-53.1.19.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

    If successful

    Confidentiality
    none
    Integrity
    none
    Availability
    P · the service can be disrupted
    Attack complexity
    M
    Confidentiality impact
    None
    Integrity impact
    None
    Availability impact
    P

    Weakness class (CWE)

    —

    CVSS vector

    AV:N/AC:M/Au:N/C:N/I:N/A:P

    nvd-primary

    Attack context

    MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

    MITRE has no CAPEC/ATT&CK mapping for this CWE.

    Change log

    1. Fix✗ → ✓

    For records you follow, these changes also arrive as notifications. →

    References

    Show all references (4 more)

    Vendor advisories and official records. Exploit/PoC links are deliberately left out.

    All records