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CVE-2024-45817

23
FAUCET Score

CVE-2024-45817 is a high-severity vulnerability affecting Xen's x86 APIC architecture. An attacker can trigger a deadlock in Xen by configuring an illegal error interrupt vector, causing recursive calls to vlapic_error() and a recursive lock attempt. This network-exploitable flaw has low attack complexity and can lead to a denial of service, with potential impacts on confidentiality and integrity. There is currently no public exploit code, active exploitation, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.5.0CPE matchmatch criteria
cpe:2.3:o:xen:xen:*:*:*:*:*:*:x86:*

CVSS Data

CVSS version used by this source: 3.1

7.3HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.54%
Probability of exploitation in next 30 days
EPSS Percentile
42.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0054 is in the 20th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

openwall.com / lists/oss-security/2024/09/24/1
Mailing ListThird Party Advisory
xenbits.xen.org / xsa/advisory-462.html
PatchVendor Advisory
xenbits.xenproject.org / xsa/advisory-462.html
PatchVendor Advisory