How severe is CVE-2017-15591?

CVE-2017-15591 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2017-15591 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-15591?

CVE-2017-15591 primarily affects Xen. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-15591?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-15591 published?

CVE-2017-15591 was published on 2017-10-18 and last updated on 2026-06-17.

CVE-2017-15591

CVE-2017-15591 is a medium-severity vulnerability in Xen with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.9
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Xen
Published: 2017-10-18
Last modified: 2026-06-17

Description

An issue was discovered in Xen 4.5.x through 4.9.x allowing attackers (who control a stub domain kernel or tool stack) to cause a denial of service (host OS crash) because of a missing comparison (of range start to range end) within the DMOP map/unmap implementation.

Frequently asked questions

What is CVE-2017-15591?: An issue was discovered in Xen 4.5.x through 4.9.x allowing attackers (who control a stub domain kernel or tool stack) to cause a denial of service (host OS crash) because of a missing comparison (of range start to range end) within the DMOP map/unmap implementation.
How severe is CVE-2017-15591?: CVE-2017-15591 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2017-15591 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-15591?: CVE-2017-15591 primarily affects Xen. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-15591?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-15591 published?: CVE-2017-15591 was published on 2017-10-18 and last updated on 2026-06-17.

References

Affected products (18)

cpe:2.3:o:xen:xen:4.5.0:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.5.1:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.5.2:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.5.3:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.5.5:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.6.0:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.6.1:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.6.3:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.6.4:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.6.5:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.6.6:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.7.0:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.7.1:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.7.2:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.7.3:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.8.0:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.8.1:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.9.0:*:*:*:*:*:*:*

More vulnerabilities in Xen

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