Is CVE-2013-1798 in the CISA KEV catalog?

No. CVE-2013-1798 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2013-1798?

CVE-2013-1798 has a CVSS v2 base score of 6.2 (MEDIUM).

What is the EPSS score for CVE-2013-1798?

CVE-2013-1798 has an EPSS score of 1.35% (68th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2013-1798?

Upgrade linux on debian 11 to 3.2.41-2 or later. Fixes are available for 8 affected products.

CVE & CISA-KEV Catalog

CVE-2013-1798

MEDIUM

6.2

CVSS v2

NVD

Description

The ioapic_read_indirect function in virt/kvm/ioapic.c in the Linux kernel through 3.8.4 does not properly handle a certain combination of invalid IOAPIC_REG_SELECT and IOAPIC_REG_WINDOW operations, which allows guest OS users to obtain sensitive information from host OS memory or cause a denial of service (host OS OOPS) via a crafted application.

CWE-20Improper Input Validation

How to fix

Remediation Available

linuxDebian

Fixed in:3.2.41-2CVE-2013-1798

awsUbuntu

Fixed in:4.4.0-1098LSN-0065-1

azureUbuntu

Fixed in:4.15.0-1063LSN-0065-1

Fixed in:5.0.0-1025LSN-0065-1

gcpUbuntu

Fixed in:5.0.0-1025LSN-0065-1

generic-4.15Ubuntu

Fixed in:4.15.0-69LSN-0065-1

generic-4.4Ubuntu

Fixed in:4.4.0-168LSN-0065-1

lowlatency-4.15Ubuntu

Fixed in:4.15.0-69LSN-0065-1

lowlatency-4.4Ubuntu

Fixed in:4.4.0-168LSN-0065-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

1.35%probability of exploitation in 30 days

68thpercentile

Moderate risk: more likely to be exploited than 68% of all known CVEs.

References

Patch1

github.com

Other references16

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.