5.5

CVE-2026-46026: linux

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2026-46026DEBIAN-CVE-2026-46026
Published 27-05-2026Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2026-46026 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 2.6% 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
0.13%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 39 · Related 39
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. 27-05-2026
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: ns: Limit the maximum number of lookups Current code does no bound checking on the number of lookups a client can perform. Though the code restricts the lookups to local clients, there is still a possibility of a malicious local client sending a flood of NEW_LOOKUP messages over the same socket. Fix this issue by limiting the maximum number of lookups to 64 globally. Since the nameserver allows only atmost one local observer, this global lookup count will ensure that the lookups stay within the limit. Note that, limit of 64 is chosen based on the current platform requirements. If requirement changes in the future, this limit can be increased.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.13%

Chance of exploitation in the next 30 days

Percentile

3%

Versus all other CVEs

30-day change

+0.01 pp

From 0.13% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.13%

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

Ubuntu147 products
  • linux< 5.15.0-198.208 | < 6.8.0-136.136 | All versions (No fix recorded) | < 7.0.0-27.27
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1117.124 | < 6.8.0-1061.64 | All versions (No fix recorded) | < 7.0.0-1008.8
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 0c2204a4ad710d95d348ea006f14ba926e842ffd, < bd69e0e8a7643ba5385f19f479e8e3da71f8d495 | ≥ 0c2204a4ad710d95d348ea006f14ba926e842ffd, < 91cb30b6bb1880ba0748ca059bef50b8ac13793d | ≥ 0c2204a4ad710d95d348ea006f14ba926e842ffd, < 6e3675251fcea06caecc61eb76462467558adfa6 | ≥ 0c2204a4ad710d95d348ea006f14ba926e842ffd, < 0dbec101a7076e9b1e4bd1876f7cf07c56ff4ce3 | ≥ 0c2204a4ad710d95d348ea006f14ba926e842ffd, < 76adf8f69b0bb3ab20be7c58f5d555027332d113 | ≥ 0c2204a4ad710d95d348ea006f14ba926e842ffd, < 20855cef7e659ef84ac73251256fa530819b2346 | ≥ 0c2204a4ad710d95d348ea006f14ba926e842ffd, < 2b930bc77e00cb27e1d6e1d497b3b596283465ef | ≥ 0c2204a4ad710d95d348ea006f14ba926e842ffd, < 5640227d9a21c6a8be249a10677b832e7f40dc55 | 5.7
  • linux_kernel≥ 5.7, < 6.6.140 | ≥ 6.7, < 6.12.86 | ≥ 6.13, < 6.18.27 | ≥ 6.19, < 7.0.4
Debian1 product
  • linux< 6.1.176-1 | < 6.12.86-1 | < 7.0.4-1

3 vendors · 150 products

References

40 links
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