7.8

CVE-2022-26361: debian debian_linux

Modified
AliasesALPINE-CVE-2022-26361UBUNTU-CVE-2022-26361DEBIAN-CVE-2022-26361
Published 05-04-2022Last modified 03-08-2024

Vulnerability summary

CVE-2022-26361 is a high (CVSS 7.8) vulnerability in debian debian_linux. EPSS estimates a 0.36% chance of exploitation in the next 30 days, higher than 29.2% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.36%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 10 · Related 9
DSA-5117-1SUSE-SU-2022:1285-1SUSE-SU-2022:1300-1SUSE-SU-2022:1359-1SUSE-SU-2022:1375-1SUSE-SU-2022:1408-1

Timeline

  1. 05-04-2022
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

IOMMU: RMRR (VT-d) and unity map (AMD-Vi) handling issues T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Certain PCI devices in a system might be assigned Reserved Memory Regions (specified via Reserved Memory Region Reporting, "RMRR") for Intel VT-d or Unity Mapping ranges for AMD-Vi. These are typically used for platform tasks such as legacy USB emulation. Since the precise purpose of these regions is unknown, once a device associated with such a region is active, the mappings of these regions need to remain continuouly accessible by the device. This requirement has been violated. Subsequent DMA or interrupts from the device may have unpredictable behaviour, ranging from IOMMU faults to memory corruption.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.36%

Chance of exploitation in the next 30 days

Percentile

29%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.36% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Debian2 products
Alpine1 product
  • xen< 4.13.4-r3 | < 4.14.5-r0 | < 4.15.2-r2 | < 4.16.1-r0
Fedoraproject1 product
Ubuntu1 product
  • xenAll versions (No fix recorded)
Xen1 product

5 vendors · 6 products

References

12 links
Show all 12 references