7.8

CVE-2026-63930: linux

CVSS: 7.8v3.1HighAwaiting analysis
AliasesUBUNTU-CVE-2026-63930DEBIAN-CVE-2026-63930
Published 19-07-2026Last modified 05-08-2026
Open JSON

Vulnerability summary

CVE-2026-63930 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 4.6% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.16%
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 32 · Related 32
OPENSUSE-SU-2026:21555-1SUSE-SU-2026:23066-1SUSE-SU-2026:23068-1SUSE-SU-2026:23193-1SUSE-SU-2026:23194-1SUSE-SU-2026:23221-1

Timeline

  1. 19-07-2026
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: iio: buffer: hw-consumer: fix use-after-free in error path In the err_put_buffers cleanup path of iio_hw_consumer_alloc(), the code was using list_for_each_entry() to iterate through buffers while calling iio_buffer_put() which can free the current buffer if refcount drops to 0. The list_for_each_entry() loop macro then evaluates buf->head.next to continue iteration, accessing the freed buffer. Fix this by using list_for_each_entry_safe().

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

0.00 pp

From 0.16% on 20-09-2026

20-09-202620-10-2026
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

Ubuntu163 products
  • linuxAll versions (No fix recorded) | < 5.15.0-198.208 | < 6.8.0-146.146 | < 7.0.0-28.28
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1117.124 | < 6.8.0-1066.69 | < 7.0.0-1009.9
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.176-1 | < 6.12.94-1 | < 7.0.12-1
Linux1 product
  • linux≥ 48b66f8f936f369bb1a43c12aedbfeb2975baf4c, < b71893c57730809c222766e5718bb33610f11963 | ≥ 48b66f8f936f369bb1a43c12aedbfeb2975baf4c, < 2ff615fc455acda5425c4900160cbe11cfea4449 | ≥ 48b66f8f936f369bb1a43c12aedbfeb2975baf4c, < d2759d49860b9a39b5cde2fb88e4b822ddf5f58f | ≥ 48b66f8f936f369bb1a43c12aedbfeb2975baf4c, < 29783e6b6ec0b7152a15e53a063f17537e81177d | ≥ 48b66f8f936f369bb1a43c12aedbfeb2975baf4c, < e965627f0d442bfcae3f496c90cb653fb0917a61 | ≥ 48b66f8f936f369bb1a43c12aedbfeb2975baf4c, < a3763ae33476328cf8d661742deb9daec78eac96 | ≥ 48b66f8f936f369bb1a43c12aedbfeb2975baf4c, < 9319c94f63ed10723afd738d79f5617daba87cc8 | ≥ 48b66f8f936f369bb1a43c12aedbfeb2975baf4c, < 6f5ed4f2c7c83f33344e0ba179f72a12e5dad4a4 | 4.16

3 vendors · 165 products

References

32 links
Show all 32 references