CVE-2026-72033
OrangeFS truncation leads to out-of-bounds read and kernel crash (DoS).
Is CVE-2026-72033 being exploited?
Not confirmed. CVE-2026-72033 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 0.74% probability of exploitation in the next 30 days.
How severe is CVE-2026-72033?
CVE-2026-72033 is rated Critical with a CVSS score of 9.8. 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-2026-72033?
Yes. A fix has been recorded for CVE-2026-72033. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-72033 affect?
CVE-2026-72033 affects Linux kernel (orangefs module), OrangeFS filesystem/clients, Systems with orangefs enabled. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-72033?
Update kernel to patched release or disable the orangefs module until patched.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Crafted directory entries can trigger 32-bit truncation, causing out-of-bounds read and kernel oops/crash (remote Denial of Service); potential memory disclosure.
Immediate action required
- affected>= 480e3e532e31666a18520a7964bb4095d7a16b9a and < 1679780f482feeb82acb5995587d4fb1d1fe82fd
- affected>= 480e3e532e31666a18520a7964bb4095d7a16b9a and < a72bbb43689591c9d36e3bb45c2d4e688cf92682
- affected>= 480e3e532e31666a18520a7964bb4095d7a16b9a and < 36723b28e3293047f087f4501f1ef4ead418dd84
- affected>= 480e3e532e31666a18520a7964bb4095d7a16b9a and < 07c05601a9a8e5d4481b2a4a16dc0e3c5bc63ad9
- affected>= 480e3e532e31666a18520a7964bb4095d7a16b9a and < fdf06a1b66ff39664b01c6bb6a2aa98d81e8ebe1
- affected>= 480e3e532e31666a18520a7964bb4095d7a16b9a and < 82fc886e244c76fadf05ef1958aaf8815478ccde
- affected>= 480e3e532e31666a18520a7964bb4095d7a16b9a and < e3d325c0bdb7bc5d1b4cc8d8441d79794cd03729
- affected>= 480e3e532e31666a18520a7964bb4095d7a16b9a and < 18227a6bc98bd0ba96ed3ce9d5b28776a5a28dfc
- affected4.12
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.