7.8

CVE-2026-63845: linux Improper Input Validation

CVSS: 7.8v3.1HighAwaiting analysis
AliasesUBUNTU-CVE-2026-63845DEBIAN-CVE-2026-63845
Published 19-07-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-63845 is a high (CVSS 7.8) Improper Input Validation 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 (CVE.org)
EPSS score
0.18%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 33 · Related 33
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. 19-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/jpeg: set no_user_fence for JPEG v4.0 ring JPEG rings do not support 64-bit user fence writes, reject CS submissions with user fences. (cherry picked from commit 8d0cac9478a3f046279c657d6a2545de49ae675a)

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.18%

Chance of exploitation in the next 30 days

Percentile

7%

Versus all other CVEs

30-day change

+0.03 pp

From 0.14% on 20-09-2026

20-09-202620-10-2026
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

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
  • linuxAll versions (No fix recorded) | < 6.12.94-1 | < 7.0.10-1
Linux1 product
  • linux≥ b13111de32a9202c6d58bb7e4c06296b99c4d7e3, < d4e0172a1b614373385e9b7111b580f8d2e0b98f | ≥ b13111de32a9202c6d58bb7e4c06296b99c4d7e3, < a676f16ea9a7df96d69f405afb6eb349571b3382 | ≥ b13111de32a9202c6d58bb7e4c06296b99c4d7e3, < 6876d05b899102f4dfdb9ad560132126144c1c72 | ≥ b13111de32a9202c6d58bb7e4c06296b99c4d7e3, < af4b458daa597dae707bf3f1f74745f5fc133ca2 | ≥ b13111de32a9202c6d58bb7e4c06296b99c4d7e3, < e7e90b5839aeb8805ec83bb4da610b8dab8e184d | 5.19

3 vendors · 141 products

References

30 links
Show all 30 references