5.5

CVE-2022-49774: KVM: x86/xen: Fix eventfd error handling in kvm_xen_eventfd_assign()

Analyzed
AliasesUBUNTU-CVE-2022-49774DEBIAN-CVE-2022-49774
Published 01-05-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-49774 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 6.4% 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 (NVD)
EPSS score
0.17%
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 1
RHSA-2023:6583

Timeline

  1. 01-05-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/xen: Fix eventfd error handling in kvm_xen_eventfd_assign() Should not call eventfd_ctx_put() in case of error. [Introduce new goto target instead. - Paolo]

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.17% 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.

Ubuntu77 products
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
  • linux-aws-5.13All versions (No fix recorded)
  • linux-aws-5.19All versions (No fix recorded)
Linux2 products
  • linux≥ 2fd6df2f2b47d4301b1ee0fe9d627d1c061a5988, < d76f46f47dfde220712d1420ee5dbc546c8fc674 | ≥ 2fd6df2f2b47d4301b1ee0fe9d627d1c061a5988, < 7353633814f6e5b4899fb9ee1483709d6bb0e1cd | 5.19
  • linux_kernel≥ 5.19, < 6.0.10 | 6.1:rc1 | 6.1:rc2 | 6.1:rc3
Debian1 product
  • linux< 6.0.10-1

3 vendors · 80 products

References

6 links