7.5

CVE-2026-46177: linux

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2026-46177DEBIAN-CVE-2026-46177
Published 28-05-2026Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2026-46177 is a high (CVSS 7.5) vulnerability in linux. EPSS estimates a 0.81% chance of exploitation in the next 30 days, higher than 56% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.81%
0%100%
Low · +0.30 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 52 · Related 52
OPENSUSE-SU-2026:10954-1OPENSUSE-SU-2026:21555-1SUSE-SU-2026:23066-1SUSE-SU-2026:23068-1SUSE-SU-2026:23193-1SUSE-SU-2026:23194-1

Timeline

  1. 28-05-2026
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: ipmi: Add limits to event and receive message requests The driver would just fetch events and receive messages until the BMC said it was done. To avoid issues with BMCs that never say they are done, add a limit of 10 fetches at a time. In addition, an si interface has an attn state it can return from the hardware which is supposed to cause a flag fetch to see if the driver needs to fetch events or message or a few other things. If the attn bit gets stuck, it's a similar problem. So allow messages in between flag fetches so the driver itself doesn't get stuck. This is a more general fix than the previous fix for the specific bad BMC, but should fix the more general issue of a BMC that won't stop saying it has data. This has been there from the beginning of the driver. It's not a bug per-se, but it is accounting for bugs in BMCs.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.81%

Chance of exploitation in the next 30 days

Percentile

56%

Versus all other CVEs

30-day change

+0.30 pp

From 0.50% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.81%

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

Ubuntu166 products
  • linuxAll versions (No fix recorded) | < 5.15.0-186.196 | < 6.8.0-136.136 | < 7.0.0-28.28
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1112.119 | < 6.8.0-1061.64 | < 7.0.0-1009.9
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 112df8e631636cafda64dcee4561daf09ce74a4a | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 304b56883b7eff73eb606c35d062c8101aaf5471 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 9059dc94421e1d4f8e5844204608b37ebfddb3da | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 67c44e0deba936d5edaebea356b4589eb43acb5c | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < e20212b431bef217d3886b86bbc90cc3ed00de68 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 3d37d2165df9504ea99d9e6181552dc4d2d1ab37 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < c024167fb00489baee08c72182ca2e7dc5fb9f20 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < c4cca236968683eb0d59abfb12d5c7e4d8514227 | 2.6.12
  • linux_kernel≥ 2.6.12.1, < 5.10.258 | ≥ 5.11, < 5.15.209 | ≥ 5.16, < 6.1.175 | ≥ 6.2, < 6.6.140 | ≥ 6.7, < 6.12.88 | ≥ 6.13, < 6.18.30 | ≥ 6.19, < 7.0.7 | 2.6.12 | 2.6.12:rc2 | 2.6.12:rc3 | 2.6.12:rc4 | 2.6.12:rc5 | 7.1:rc1 | 7.1:rc2
Debian1 product
  • linux< 6.1.176-1 | < 6.12.88-1 | < 7.0.7-1

3 vendors · 169 products

References

52 links
Show all 52 references