CVE-2026-74673: linux

CVSS: UnknownReceived
AliasesUBUNTU-CVE-2026-74673DEBIAN-CVE-2026-74673
Published 22-08-2026Last modified 25-08-2026
Open JSON

Vulnerability summary

CVE-2026-74673 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 6.8% 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
0.18%
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 7 · Related 6
MGASA-2026-0506SUSE-SU-2026:4282-1USN-8875-1USN-8875-2USN-8877-1USN-8878-1

Timeline

  1. 22-08-2026
    PublishedVulnerability first disclosed.
  2. 25-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: Input: evdev - fix information leak in evdev_pass_values() In evdev_pass_values(), the input_event structure is allocated on the kernel stack and populated field-by-field. However, it is never fully initialized. On architectures where struct input_event contains explicit or implicit padding (such as the 32-bit __pad field on SPARC64), these padding bytes are left uninitialized. When this event structure is subsequently passed to the client buffer and later copied to userspace, the uninitialized padding bytes leak kernel stack memory, potentially exposing sensitive information. Similar issues exist in __evdev_queue_syn_dropped and __pass_event. Fix this by explicitly zeroing the entire event structure with memset() before populating its fields. This ensures all padding bytes are cleared before the data crosses the security boundary.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.18%

Chance of exploitation in the next 30 days

Percentile

7%

Versus all other CVEs

30-day change

0.00 pp

From 0.18% on 19-09-2026

19-09-202619-10-2026
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

No weakness data has been published for this record.

Affected systems

Ubuntu169 products
  • linuxAll versions (No fix recorded) | < 5.15.0-198.208
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1117.124
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linux< 6.1.187-1 | < 6.12.105-1 | < 7.1.9-1
  • linux-6.12< 6.12.107-1~deb12u1
Linux1 product
  • linux≥ 6addb1d6de1968b84852f54561cc9a999909b5a9, < d2e3839419ac4047835762c4d7712bda1101b57e | ≥ 6addb1d6de1968b84852f54561cc9a999909b5a9, < c6d5fa46c1ee25d068fc730fd377f0f54188d290 | ≥ 6addb1d6de1968b84852f54561cc9a999909b5a9, < e748811d9b80a3e101110ff4b3c612e5fca54d98 | ≥ 6addb1d6de1968b84852f54561cc9a999909b5a9, < 06a286b320236508d02ab2ccc9496352748652a8 | ≥ 6addb1d6de1968b84852f54561cc9a999909b5a9, < 7d17e9454a9af3ec7aebb88b41a9deedd5b19a6b | ≥ 6addb1d6de1968b84852f54561cc9a999909b5a9, < bd3c4108a56de34380edab670065e86283cb3029 | ≥ 6addb1d6de1968b84852f54561cc9a999909b5a9, < 7e55ca1080f09d9f7112c7f20ac31f682c1f2374 | ≥ 6addb1d6de1968b84852f54561cc9a999909b5a9, < 90f305f2c7a30257c683e13f4bf7c798eea992a0 | 2.6.24

3 vendors · 172 products

References

17 links
Show all 17 references