CVE-2026-63873: linux

CVSS: UnknownAwaiting analysis
AliasesUBUNTU-CVE-2026-63873DEBIAN-CVE-2026-63873
Published 19-07-2026Last modified 19-07-2026
Open JSON

Vulnerability summary

CVE-2026-63873 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.2% 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
0.16%
0%100%
Low · -0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 12 · Related 11
MGASA-2026-0312USN-8726-1USN-8726-2USN-8726-3USN-8726-4USN-8727-1

Timeline

  1. 19-07-2026
    PublishedVulnerability first disclosed.

Description

In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Fix mm_struct reference leak in aie2_populate_range() aie2_populate_range() jumps back to the again label without calling mmput(mm), leaking a reference to the mm_struct. Add the missing mmput() before jumping to again.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

-0.04 pp

From 0.21% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.16%

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

Ubuntu119 products
  • linux< 7.0.0-31.31
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 7.0.0-1012.12
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 7.0.13-1
Linux1 product
  • linux≥ e486147c912f653ef4b60a6c7dbd4168a4c56a9f, < e83fc4c28226be75fbc0c41f2846935ba2b5f949 | ≥ e486147c912f653ef4b60a6c7dbd4168a4c56a9f, < 21dfec59939120b20d2c7794caaa421f9450be0a | ≥ e486147c912f653ef4b60a6c7dbd4168a4c56a9f, < 2f41af638c92bac6f1f9275ea2d1901baef578f3 | 6.16

3 vendors · 121 products

References

18 links
Show all 18 references