CVE-2026-43232
Kernel use-after-free in FarSync detach may enable local privilege escalation.
Is CVE-2026-43232 being exploited?
Not confirmed. CVE-2026-43232 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.39% probability of exploitation in the next 30 days.
How severe is CVE-2026-43232?
CVE-2026-43232 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-43232?
Yes. A fix has been recorded for CVE-2026-43232. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-43232 affect?
CVE-2026-43232 affects Linux kernel with FarSync T-series PCIe driver. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-43232?
Upgrade kernel to patched release
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Local privilege escalation via race condition/use-after-free in FarSync PCIe detach handling.
Patch when possible
- affected>= 51e2d1b84acac39f79cacb60e6e154ce00a9d308 and < cac048ebfbb92d91d719f74b59177cb70a7633b8
- affected>= 998b4e54f517961d3d75144c088a24423e003005 and < 086131807d119238cd464e5b0845e48d938dfd79
- affected>= bb1715a6bfb0c57a68524732a376498a2569f016 and < ae894e47e1cd5a6bf8a0423d888c45df8b2b02dc
- affected>= 2f623aaf9f31de968dea6169849706a2f9be444c and < 337d7b4112a47984ee319171b75b73bab47e7924
- affected>= 2f623aaf9f31de968dea6169849706a2f9be444c and < 200bdb8d367ca9b478f9c56ebe56411604d55c81
- affected>= 2f623aaf9f31de968dea6169849706a2f9be444c and < 21d341fe514fd07e345ed264c9eee21cb2061ca2
- affected>= 2f623aaf9f31de968dea6169849706a2f9be444c and < 04edfdfdfcdefc02408ab670607261b0a0a9a02e
- affected>= 2f623aaf9f31de968dea6169849706a2f9be444c and < bae8a5d2e759da2e0cba33ab2080deee96a09373
- affected41798a063fd4721b609e11ad839b6820f5070ca7
- affectedb1fe377b43c405b169cffd1b3aa39c1dde16f3ed
- affectedce9dc768767bbe73d2dd330a9075e849cb8a84d4
- affected0c5f2c7700cb18aeab1574588d3bb9c0454bf228
- affected024d2a7c8ee5bfe14357f20cf1bbbbcc5d228cc9
- affected>= 5.10.163 and < 5.10.252
- affected>= 5.15.86 and < 5.15.202
- affected>= 6.1.2 and < 6.1.165
- affected>= 4.9.337 and < 4.10
- affected>= 4.14.303 and < 4.15
- affected>= 4.19.270 and < 4.20
- affected>= 5.4.229 and < 5.5
- affected>= 6.0.16 and < 6.1
- affected6.2
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.