9.8

CVE-2026-72033: linux

CVSS: 9.8v3.1CriticalReceived
AliasesUBUNTU-CVE-2026-72033DEBIAN-CVE-2026-72033
Published 15-08-2026Last modified 17-08-2026
Open JSON

Vulnerability summary

CVE-2026-72033 is a critical (CVSS 9.8) vulnerability in linux. EPSS estimates a 0.79% chance of exploitation in the next 30 days, higher than 55.5% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.79%
0%100%
Low · +0.05 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 15 · Related 15
USN-8781-1USN-8816-1USN-8816-2USN-8816-3USN-8816-4USN-8875-1

Timeline

  1. 15-08-2026
    PublishedVulnerability first disclosed.
  2. 17-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: orangefs: keep the readdir entry size 64-bit in fill_from_part() fill_from_part() computes the size of a directory entry in size_t but stores it in a __u32. An entry length near U32_MAX wraps it to a small value, bypasses the bounds check, and is then used to index the entry, reading far past the directory part -- an out-of-bounds read that oopses the kernel. Compute the size as a u64 so it cannot truncate; the bounds check then rejects the entry. The trailer is supplied by the userspace client.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.79%

Chance of exploitation in the next 30 days

Percentile

56%

Versus all other CVEs

30-day change

+0.05 pp

From 0.74% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.79%

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

Ubuntu168 products
  • linuxAll versions (No fix recorded) | < 5.15.0-198.208 | < 6.8.0-147.147 | < 7.0.0-34.34
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1117.124 | < 6.8.0-1067.70 | < 7.0.0-1013.13
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.180-1 | < 6.12.100-1 | < 7.1.5-1
Linux1 product
  • linux≥ 480e3e532e31666a18520a7964bb4095d7a16b9a, < 1679780f482feeb82acb5995587d4fb1d1fe82fd | ≥ 480e3e532e31666a18520a7964bb4095d7a16b9a, < a72bbb43689591c9d36e3bb45c2d4e688cf92682 | ≥ 480e3e532e31666a18520a7964bb4095d7a16b9a, < 36723b28e3293047f087f4501f1ef4ead418dd84 | ≥ 480e3e532e31666a18520a7964bb4095d7a16b9a, < 07c05601a9a8e5d4481b2a4a16dc0e3c5bc63ad9 | ≥ 480e3e532e31666a18520a7964bb4095d7a16b9a, < fdf06a1b66ff39664b01c6bb6a2aa98d81e8ebe1 | ≥ 480e3e532e31666a18520a7964bb4095d7a16b9a, < 82fc886e244c76fadf05ef1958aaf8815478ccde | ≥ 480e3e532e31666a18520a7964bb4095d7a16b9a, < e3d325c0bdb7bc5d1b4cc8d8441d79794cd03729 | ≥ 480e3e532e31666a18520a7964bb4095d7a16b9a, < 18227a6bc98bd0ba96ed3ce9d5b28776a5a28dfc | 4.12

3 vendors · 170 products

References

27 links
Show all 27 references