5.5

CVE-2022-21166: debian debian_linux Incomplete Cleanup

Modified
AliasesALPINE-CVE-2022-21166UBUNTU-CVE-2022-21166DEBIAN-CVE-2022-21166
Published 15-06-2022Last modified 14-10-2026

Vulnerability summary

CVE-2022-21166 is a medium (CVSS 5.5) Incomplete Cleanup vulnerability in debian debian_linux. EPSS estimates a 6.45% chance of exploitation in the next 30 days, higher than 93.7% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
6.45%
0%100%
Low · +0.67 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 54 · Related 34
DLA-3065-1DSA-5173-1DSA-5178-1DSA-5184-1MGASA-2022-0242MGASA-2022-0243

Timeline

  1. 15-06-2022
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Last modifiedVulnerability information updated.

Description

Incomplete cleanup in specific special register write operations for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

CVSS metrics

7 scores · 5 sources · 3 versions

EPSS trend

Probability

6.45%

Chance of exploitation in the next 30 days

Percentile

94%

Versus all other CVEs

30-day change

Increase +0.67 pp

From 5.78% 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

Affected systems

Version check

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

Ubuntu47 products
  • intel-microcodeAll versions (No fix recorded) | < 3.20220510.0ubuntu0.16.04.1+esm1 | < 3.20220510.0ubuntu0.18.04.1 | < 3.20220510.0ubuntu0.20.04.1 | < 3.20220510.0ubuntu0.22.04.1
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
  • linux-aws-5.13< 5.13.0-1031.35~20.04.1
  • linux-aws-5.3All versions (No fix recorded)
Debian4 products
  • intel-microcode< 3.20220510.1
  • linux< 5.18.5-1
  • xen< 4.16.2-1
  • debian_linuxEOL9.0 | 10.0 | 11.0
Intel3 products
Alpine1 product
  • xen< 4.14.5-r2 | < 4.15.2-r2 | < 4.16.1-r2 | < 4.16.1-r3
Fedoraproject1 product
Vmware1 product
  • esxiEOL7.0 | 7.0:beta | 7.0:update_1 | 7.0:update_1a | 7.0:update_1b | 7.0:update_1c | 7.0:update_1d | 7.0:update_2 | 7.0:update_2a | 7.0:update_2c | 7.0:update_2d | 7.0:update_3c | 7.0:update_3d

6 vendors · 57 products

References

27 links
Show all 27 references