5.5

CVE-2026-45917: linux

CVSS: 5.5v3.1MediumUndergoing analysis
AliasesUBUNTU-CVE-2026-45917DEBIAN-CVE-2026-45917
Published 27-05-2026Last modified 21-10-2026
Open JSON

Vulnerability summary

CVE-2026-45917 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.16%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 25 · Related 25
OPENSUSE-SU-2026:21555-1SUSE-SU-2026:23066-1SUSE-SU-2026:23068-1SUSE-SU-2026:23193-1SUSE-SU-2026:23194-1SUSE-SU-2026:23221-1

Timeline

  1. 27-05-2026
    PublishedVulnerability first disclosed.
  2. 21-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: ipvs: do not keep dest_dst if dev is going down There is race between the netdev notifier ip_vs_dst_event() and the code that caches dst with dev that is going down. As the FIB can be notified for the closed device after our handler finishes, it is possible valid route to be returned and cached resuling in a leaked dev reference until the dest is not removed. To prevent new dest_dst to be attached to dest just after the handler dropped the old one, add a netif_running() check to make sure the notifier handler is not currently running for device that is closing.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

+0.04 pp

From 0.12% on 22-09-2026

22-09-202622-10-2026
EPSS score
0.16%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu157 products
  • linuxAll versions (No fix recorded) | < 6.8.0-134.134
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 6.8.0-1060.63
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 7a4f0761fce32ff4918a7c23b08db564ad33092d, < 11d35b11013442576f35fd9e8a8fc16155101906 | ≥ 7a4f0761fce32ff4918a7c23b08db564ad33092d, < 64af43033503458c46023e56d6ae7bb0f824b55f | ≥ 7a4f0761fce32ff4918a7c23b08db564ad33092d, < bae53b3baf2ff2f45f9205c438818fc055601a54 | ≥ 7a4f0761fce32ff4918a7c23b08db564ad33092d, < 024eb0bd19f507e6e7f0c7a7e5506d66b5dc1d3e | ≥ 7a4f0761fce32ff4918a7c23b08db564ad33092d, < 8fde939b0206afc1d5846217a01a16b9bc8c7896 | 2.6.39
  • linux_kernel≥ 2.6.39.1, < 6.12.75 | ≥ 6.13, < 6.18.14 | ≥ 6.19, < 6.19.4 | 2.6.39
Debian1 product
  • linuxAll versions (No fix recorded) | < 6.12.85-1 | < 6.18.14-1

3 vendors · 160 products

References

21 links
Show all 21 references