CVE-2026-63838: linux

CVSS: UnknownAwaiting analysis
AliasesUBUNTU-CVE-2026-63838DEBIAN-CVE-2026-63838
Published 19-07-2026Last modified 19-07-2026
Open JSON

Vulnerability summary

CVE-2026-63838 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.4% of scored vulnerabilities.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.21%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 26 · Related 26
OPENSUSE-SU-2026:22091-1SUSE-SU-2026:24179-1SUSE-SU-2026:24184-1SUSE-SU-2026:24197-1SUSE-SU-2026:24235-1USN-8574-1

Timeline

  1. 19-07-2026
    PublishedVulnerability first disclosed.

Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: rsnd: Fix potential out-of-bounds access of component_dais[] component_dais[RSND_MAX_COMPONENT] is initially zero-initialized and later populated in rsnd_dai_of_node(). However, the existing boundary check: if (i >= RSND_MAX_COMPONENT) does not guarantee that the last valid element remains zero. As a result, the loop can rely on component_dais[RSND_MAX_COMPONENT] being zero, which may lead to an out-of-bounds access. Found by Linux Verification Center (linuxtesting.org) with SVACE.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

+0.02 pp

From 0.18% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.21%

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

Ubuntu139 products
  • linux< 6.8.0-136.136 | < 7.0.0-28.28
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 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)
Debian1 product
  • linux< 6.12.94-1 | < 7.0.10-1
Linux1 product
  • linux≥ 547b02f74e4ac1e7d295a6266d5bc93a647cd4ac, < 9f1daac27ca28e98c8c0e4450de42bb68d547250 | ≥ 547b02f74e4ac1e7d295a6266d5bc93a647cd4ac, < 15e7b2ac2455995a6af02b9d3da7a432837aaf72 | ≥ 547b02f74e4ac1e7d295a6266d5bc93a647cd4ac, < 134c61925e9e9ee0f4fdbab5c3984d5bb024f5f5 | ≥ 547b02f74e4ac1e7d295a6266d5bc93a647cd4ac, < a62b3e6e42359a79158c134e3cf5c74fe160c3f5 | ≥ 547b02f74e4ac1e7d295a6266d5bc93a647cd4ac, < f9e437cddf6cf9e603bdaefe148c1f4792aaf39c | 6.6

3 vendors · 141 products

References

30 links
Show all 30 references