8.2

CVE-2026-89531: linux

CVSS: 8.2v4.0HighReceived
AliasesUBUNTU-CVE-2026-89531DEBIAN-CVE-2026-89531
Published 11-09-2026Last modified 21-10-2026
Open JSON

Vulnerability summary

CVE-2026-89531 is a high (CVSS 8.2) vulnerability in linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.7% of scored vulnerabilities.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.2/10
010
High · v4.0 (OSV · Ubuntu), selected by version preference
EPSS score
0.17%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 11 · Related 11
OPENSUSE-SU-2026:11880-1OPENSUSE-SU-2026:22091-1SUSE-SU-2026:24179-1SUSE-SU-2026:24181-1SUSE-SU-2026:24182-1SUSE-SU-2026:24184-1

Timeline

  1. 11-09-2026
    PublishedVulnerability first disclosed.
  2. 21-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: svcrdma: Reject connection when transport allocation fails handle_connect_req() returns without action when svc_rdma_create_xprt() fails to allocate the new transport. The CM core returns 0 for CONNECT_REQUEST events, so it does not destroy the new rdma_cm_id. Each allocation failure under memory pressure leaks one rdma_cm_id, and a remote peer driving connection attempts can amplify this. Reject the connection by returning a non-zero status from the CM event handler, which tells the CM core to destroy the orphaned cm_id.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

0.00 pp

From 0.17% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.17%

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

Ubuntu169 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linuxAll versions (No fix recorded) | < 6.12.111-1 | < 7.2.6-1
  • linux-6.12< 6.12.111-1~deb12u1
Linux1 product
  • linux≥ 377f9b2f4529e0ac702fd7b91e216afd0adc959e, < 5bf47bbea3c22c0af2293b6c393ab04d5420f7ab | ≥ 377f9b2f4529e0ac702fd7b91e216afd0adc959e, < 6e21754bbf75075f3fee1cebc79f3417364235ec | ≥ 377f9b2f4529e0ac702fd7b91e216afd0adc959e, < 3cf372cec7ab2cd8c6002bf775cc14d90ccb098b | ≥ 377f9b2f4529e0ac702fd7b91e216afd0adc959e, < 1f6a14c142fee4778c32709d1d54595c2e2b7991 | ≥ 377f9b2f4529e0ac702fd7b91e216afd0adc959e, < 0944462247dcb7de7622cdaaadf5f05c52707dab | 2.6.25

3 vendors · 172 products

References

9 links