6.5

CVE-2023-28746: xen

Deferred
AliasesALPINE-CVE-2023-28746UBUNTU-CVE-2023-28746DEBIAN-CVE-2023-28746
Published 14-03-2024Last modified 14-10-2026

Vulnerability summary

CVE-2023-28746 is a medium (CVSS 6.5) vulnerability in xen. EPSS estimates a 0.55% chance of exploitation in the next 30 days, higher than 45.8% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.55%
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 46 · Related 34
DLA-3808-1DLA-3842-1DSA-5681-1DSA-5836-1MGASA-2024-0103MGASA-2024-0115

Timeline

  1. 14-03-2024
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Last modifiedVulnerability information updated.

Description

Information exposure through microarchitectural state after transient execution from some register files for some Intel(R) Atom(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.55%

Chance of exploitation in the next 30 days

Percentile

46%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.55% 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.

Debian3 products
  • intel-microcode< 3.20240312.1~deb12u1 | < 3.20240312.1
  • linux< 6.1.82-1 | < 6.7.9-2
  • xen< 4.17.5+23-ga4e5191dc0-1 | < 4.19.1-1
Alpine2 products
  • intel-ucode< 20240813-r0 | < 20240312-r0
  • xen< 4.16.5-r7 | < 4.17.3-r1 | < 4.18.0-r4 | < 4.18.0-r5
Opensuse1 product
  • kernel-source&distro=openSUSE Tumbleweed< 6.8.1-1.1
Ubuntu1 product
  • intel-microcodeAll versions (No fix recorded) | < 3.20240514.0ubuntu0.16.04.1+esm1 | < 3.20240514.0ubuntu0.18.04.1+esm1 | < 3.20240514.0ubuntu0.20.04.1 | < 3.20240514.0ubuntu0.22.04.1

4 vendors · 7 products

References

15 links
Show all 15 references