CVE-2026-43498: linux Out-of-bounds Write
Vulnerability summary
CVE-2026-43498 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.3% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 12 · Related 12Timeline
- 21-05-2026PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Disallow re-exporting imported GEM objects Prevent re-exporting of imported GEM buffers by adding a custom prime_handle_to_fd callback that checks if the object is imported and returns -EOPNOTSUPP if so. Re-exporting imported GEM buffers causes loss of buffer flags settings, leading to incorrect device access and data corruption.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.17%
Chance of exploitation in the next 30 days
Percentile
5%
Versus all other CVEs
30-day change
+0.05 pp
From 0.11% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu106 products
- linux< 7.0.0-28.28
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 7.0.0-1009.9
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 57557964b582238d5ee4b8538d1c4694f91c2186, < 3756043dd695bba34cc728cdc5688dcb49ac8043 | ≥ 57557964b582238d5ee4b8538d1c4694f91c2186, < 7dd57d7a6350770dfc283287125c409e995200e0 | 6.19
- linux_kernel≥ 6.19, < 7.0.7 | 7.1:rc1 | 7.1:rc2
Debian1 product
- linux< 7.0.7-1
3 vendors · 109 products
