9.8

CVE-2026-72194: linux

CVSS: 9.8v3.1CriticalReceived
AliasesUBUNTU-CVE-2026-72194DEBIAN-CVE-2026-72194
Published 15-08-2026Last modified 16-10-2026
Open JSON

Vulnerability summary

CVE-2026-72194 is a critical (CVSS 9.8) vulnerability in linux. EPSS estimates a 0.80% chance of exploitation in the next 30 days, higher than 55.7% 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
0.80%
0%100%
Low · +0.04 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. 16-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: add depth limit to indx_find_buffer to prevent stack overflow indx_find_buffer() recursively descends the B+ tree index with no depth limit. A crafted NTFS image with circular index node references causes unbounded recursion, overflowing the kernel stack and panicking the system. This is reachable by mounting a malicious NTFS filesystem (e.g. from a USB drive via desktop automount) and deleting a file whose index entry triggers the rebalancing fallback path in indx_delete_entry(). Add a depth parameter and bail out with -EINVAL when it reaches the fnd->nodes array bound, matching the constraint already enforced by fnd_push() in indx_find(). The related function indx_find() was previously patched for a similar infinite-loop issue (commit 1732053c8a6b), but indx_find_buffer() was missed.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.80%

Chance of exploitation in the next 30 days

Percentile

56%

Versus all other CVEs

30-day change

+0.04 pp

From 0.75% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.80%

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

Ubuntu157 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≥ 82cae269cfa953032fbb8980a7d554d60fb00b17, < 99031d4f63c785d2a985b6a4c64c4256f7117052 | ≥ 82cae269cfa953032fbb8980a7d554d60fb00b17, < 65357a81f64cb3fbe13b4b937586755e4b3a072f | ≥ 82cae269cfa953032fbb8980a7d554d60fb00b17, < 96fb64f9da86fd2dbd78fbe9d9e41ae27e12ce34 | ≥ 82cae269cfa953032fbb8980a7d554d60fb00b17, < 78612f478f9fadcec4f9b3b089970da67ffb47e9 | ≥ 82cae269cfa953032fbb8980a7d554d60fb00b17, < 908c9243ba309997b73cbda3e4c563d0fb345ee9 | ≥ 82cae269cfa953032fbb8980a7d554d60fb00b17, < fdf50c788e0991e42a187ff75479a0df7fb752f1 | ≥ 82cae269cfa953032fbb8980a7d554d60fb00b17, < 1ebd684b8f627f75bc3e03f8b2ad8400fd1f02cd | 5.15

3 vendors · 159 products

References

26 links
Show all 26 references