CVE-2025-68743: mshv: Fix create memory region overlap check

Deferred
AliasesUBUNTU-CVE-2025-68743DEBIAN-CVE-2025-68743
Published 24-12-2025Last modified 11-05-2026

Vulnerability summary

CVE-2025-68743 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 8.1% of scored vulnerabilities.

Priority
Insufficient evidence

No CVSS vector published; no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.18%
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 13 · Related 13
OPENSUSE-SU-2026:10039-1OPENSUSE-SU-2026:10301-1OPENSUSE-SU-2026:20287-1SUSE-SU-2026:20555-1SUSE-SU-2026:20570-1SUSE-SU-2026:20599-1

Timeline

  1. 24-12-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: mshv: Fix create memory region overlap check The current check is incorrect; it only checks if the beginning or end of a region is within an existing region. This doesn't account for userspace specifying a region that begins before and ends after an existing region. Change the logic to a range intersection check against gfns and uaddrs for each region. Remove mshv_partition_region_by_uaddr() as it is no longer used.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.18%

Chance of exploitation in the next 30 days

Percentile

8%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.18% 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: not stated in public data.

Ubuntu98 products
  • linux< 6.17.0-19.19
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 6.17.0-1009.9
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.17.13-1
Linux1 product
  • linux≥ 621191d709b14882270dfd8ea5d7d6cdfebe2c35, < 2183924dd834e0703f87e17c17e689bcbf55d69d | ≥ 621191d709b14882270dfd8ea5d7d6cdfebe2c35, < ab3e7a78d83a61d335458cfe2e4d17eba69ae73d | ≥ 621191d709b14882270dfd8ea5d7d6cdfebe2c35, < ba9eb9b86d232854e983203dc2fb1ba18e316681 | 6.15

3 vendors · 100 products

References

12 links
Show all 12 references