7.8

CVE-2026-46068: linux Out-of-bounds Write

CVSS: 7.8v3.1HighUndergoing analysis
AliasesUBUNTU-CVE-2026-46068DEBIAN-CVE-2026-46068
Published 27-05-2026Last modified 14-06-2026
Open JSON

Vulnerability summary

CVE-2026-46068 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in linux. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 6.6% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.18%
0%100%
Low · +0.05 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 34 · Related 34
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. 14-06-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: nx - fix bounce buffer leaks in nx842_crypto_{alloc,free}_ctx The bounce buffers are allocated with __get_free_pages() using BOUNCE_BUFFER_ORDER (order 2 = 4 pages), but both the allocation error path and nx842_crypto_free_ctx() release the buffers with free_page(). Use free_pages() with the matching order instead.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.18%

Chance of exploitation in the next 30 days

Percentile

7%

Versus all other CVEs

30-day change

+0.05 pp

From 0.13% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.18%

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

Affected systems

Ubuntu159 products
  • linuxAll versions (No fix recorded) | < 6.8.0-136.136 | < 7.0.0-27.27
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 6.8.0-1061.64 | < 7.0.0-1008.8
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ ed70b479c2c0b6e1319f0cb2de19f1051be219a4, < f17a4850d1ce7c11cba8b1830b9bfedfede878bb | ≥ ed70b479c2c0b6e1319f0cb2de19f1051be219a4, < 910bb34b801d39794e656f7d48414844b2bd354e | ≥ ed70b479c2c0b6e1319f0cb2de19f1051be219a4, < 5c07962fed66e1238fad7635fa150570bd38b4c5 | ≥ ed70b479c2c0b6e1319f0cb2de19f1051be219a4, < 80fd99d7c30ea889662d21f1b44d8fea4c83138d | ≥ ed70b479c2c0b6e1319f0cb2de19f1051be219a4, < adb3faf2db1a66d0f015b44ac909a32dfc7f2f9c | 4.2
  • linux_kernel≥ 4.2, < 6.6.141 | ≥ 6.7, < 6.12.88 | ≥ 6.13, < 6.18.27 | ≥ 6.19, < 7.0.4
Debian1 product
  • linuxAll versions (No fix recorded) | < 6.12.88-1 | < 7.0.4-1

3 vendors · 162 products

References

30 links
Show all 30 references