5.5

CVE-2022-4543: linux

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2022-4543DEBIAN-CVE-2022-4543CGA-2222-vmw5-vvgv
Published 11-01-2023Last modified 08-04-2025
Open JSON

Vulnerability summary

CVE-2022-4543 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.95% chance of exploitation in the next 30 days, higher than 60.7% of scored vulnerabilities. 2 public exploits are recorded.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.95%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2reference

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
CGA-HMRG-VX9H-86VF

Timeline

  1. 11-01-2023
    PublishedVulnerability first disclosed.
  2. 08-04-2025
    Last modifiedVulnerability information updated.

Description

A flaw named "EntryBleed" was found in the Linux Kernel Page Table Isolation (KPTI). This issue could allow a local attacker to leak KASLR base via prefetch side-channels based on TLB timing for Intel systems.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.95%

Chance of exploitation in the next 30 days

Percentile

61%

Versus all other CVEs

30-day change

0.00 pp

From 0.95% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.95%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (openwall.com)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (willsroot.io)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Ubuntu154 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Chainguard45 products
  • linux-aws-6.12< 6.12.72-r0 | < 6.12.57-r2 | < 6.12.57-r1 | < 6.12.74-r0 | < 6.12.69-r0 | < 6.12.68-r0 | < 6.12.62-r0 | < 6.12.77-r0 | < 6.12.62-r2 | < 6.12.63-r0 | < 6.12.60-r4 | < 6.12.67-r0 | < 6.12.68-r1 | < 6.12.72-r1 | < 6.12.76-r0 | < 6.12.74-r1 | < 6.12.70-r0 | < 6.12.66-r0 | < 6.12.65-r2 | < 6.12.71-r0 | < 6.12.65-r0 | < 6.12.77-r1 | < 6.12.78-r0 | < 6.12.62-r1 | < 6.12.65-r1 | < 6.12.80-r0 | < 6.12.77-r2
  • linux-aws-6.18< 6.18.17-r0 | < 6.18.2-r0 | < 6.18.8-r0 | < 6.18.6-r0 | < 6.18.18-r0 | < 6.18.5-r0 | < 6.18.1-r0 | < 6.18.15-r0 | < 6.18.21-r0 | < 6.18.5-r1 | < 6.18.7-r0 | < 6.18.20-r0 | < 6.18.18-r1 | < 6.18.16-r0 | < 6.18.5-r2 | < 6.18.18-r2 | < 6.18.13-r0 | < 6.18.3-r0 | < 6.18.1-r1 | < 6.18.9-r0 | < 6.18.10-r0 | < 6.18.8-r1 | < 6.18.11-r0
  • linux-aws-generic< 6.18.10-r0 | < 6.18.5-r2 | < 6.18.5-r1 | < 6.18.5-r0 | < 6.17.7-r1 | < 6.18.2-r0 | < 6.18.1-r1 | < 6.17.8-r0 | < 6.18.6-r0 | < 6.18.1-r0 | < 6.18.8-r0 | < 6.18.7-r0 | < 6.17.7-r2 | < 6.18.3-r0 | < 6.18.9-r0 | < 6.17.10-r2 | < 6.17.10-r3 | All versions (No fix recorded)
  • linux-azure-6.12< 6.12.65-r2 | < 6.12.74-r0 | < 6.12.60-r3 | < 6.12.66-r0 | < 6.12.62-r0 | < 6.12.78-r0 | < 6.12.67-r0 | < 6.12.77-r1 | < 6.12.70-r0 | < 6.12.72-r0 | < 6.12.65-r4 | < 6.12.71-r0 | < 6.12.69-r0 | < 6.12.62-r2 | < 6.12.57-r1 | < 6.12.76-r0 | < 6.12.57-r0 | < 6.12.60-r4 | < 6.12.77-r2 | < 6.12.77-r0 | < 6.12.68-r0 | < 6.12.65-r3 | < 6.12.74-r1 | < 6.12.62-r1 | < 6.12.65-r1 | < 6.12.80-r0 | < 6.12.57-r2 | < 6.12.63-r0
  • linux-azure-6.18< 6.18.10-r0 | < 6.18.5-r3 | < 6.18.5-r1 | < 6.18.18-r2 | < 6.18.6-r0 | < 6.18.17-r0 | < 6.18.7-r0 | < 6.18.18-r1 | < 6.18.20-r0 | < 6.18.11-r0 | < 6.18.8-r0 | < 6.18.16-r0 | < 6.18.5-r2 | < 6.18.21-r0 | < 6.18.18-r0 | < 6.18.8-r1 | < 6.18.15-r0 | < 6.18.13-r0 | < 6.18.9-r0
Debian1 product
  • linuxAll versions (No fix recorded)

3 vendors · 200 products · Showing 200 of 216. Use Open JSON for the complete list.

References

7 links