4.8

CVE-2026-92480: linux

CVSS: 4.8v4.0MediumReceived
AliasesUBUNTU-CVE-2026-92480DEBIAN-CVE-2026-92480
Published 17-09-2026Last modified 21-10-2026
Open JSON

Vulnerability summary

CVE-2026-92480 is a medium (CVSS 4.8) vulnerability in linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.1% of scored vulnerabilities.

Overall risk
19/100
0100
Low · default modelHow is this calculated?
CVSS score
4.8/10
010
Medium · v4.0 (OSV · Ubuntu), selected by version preference
EPSS score
0.21%
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 1 · Related 1
OPENSUSE-SU-2026:11893-1

Timeline

  1. 17-09-2026
    PublishedVulnerability first disclosed.
  2. 21-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Validate string descriptors The string descriptor length includes a two-byte header while the UTF-16 payload starts after it. utf16s_to_utf8s() expects a count of UTF-16 code units, not bytes. Passing the payload byte count can make it read beyond the descriptor buffer. Validate that the payload has an even byte count, pass a code-unit count to the converter, and allocate sufficient UTF-8 output space. The raw string buffer starts after the descriptor header but its size is bLength. Copying bLength bytes from that pointer can read beyond the response buffer. Allocate a zeroed bLength-sized buffer and copy only the UTF-16 payload. This preserves the raw buffer size consumed by the RPMB device-ID ABI while avoiding the overread.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

+0.05 pp

From 0.15% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.21%

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

Ubuntu165 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linuxAll versions (No fix recorded) | < 7.2.6-1
Linux1 product
  • linux≥ 4b828fe156a662a4b6135019bf077040340f299b, < 566109f1ee4e389b4effab43b0ce1fdab302e9de | ≥ 4b828fe156a662a4b6135019bf077040340f299b, < 02dd1a65dff842d9360a38ebe243dc8f6adbbaf5 | ≥ 4b828fe156a662a4b6135019bf077040340f299b, < f3480c59f4ce97d831e9d06f5a2b9c20547ed1a4 | ≥ 4b828fe156a662a4b6135019bf077040340f299b, < 66da25277256b6bf4c3fdbf3c9bfd43324c9cf25 | ≥ 4b828fe156a662a4b6135019bf077040340f299b, < d96e83d028d7d8762e424e49c671d49ac2ecf14f | 5.4

3 vendors · 167 products

References

9 links