8.1

CVE-2023-53803: scsi: ses: Fix slab-out-of-bounds in ses_enclosure_data_process()

Deferred
AliasesUBUNTU-CVE-2023-53803DEBIAN-CVE-2023-53803
Published 09-12-2025Last modified 15-10-2026

Vulnerability summary

CVE-2023-53803 is a high (CVSS 8.1) vulnerability in linux. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 21.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 8.1, adjacent network); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
8.1/10
010
High · v3.1 (CVE.org)
EPSS score
0.29%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 8 · Related 5
RHSA-2023:6583RHSA-2023:7077RHSA-2024:10772SUSE-SU-2026:0263-1SUSE-SU-2026:0316-1SUSE-SU-2026:0317-1

Timeline

  1. 09-12-2025
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: ses: Fix slab-out-of-bounds in ses_enclosure_data_process() A fix for: BUG: KASAN: slab-out-of-bounds in ses_enclosure_data_process+0x949/0xe30 [ses] Read of size 1 at addr ffff88a1b043a451 by task systemd-udevd/3271 Checking after (and before in next loop) addl_desc_ptr[1] is sufficient, we expect the size to be sanitized before first access to addl_desc_ptr[1]. Make sure we don't walk beyond end of page.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.29%

Chance of exploitation in the next 30 days

Percentile

22%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.29% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: adjacent network, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu122 products
  • linuxAll versions (No fix recorded) | < 5.4.0-152.169 | < 5.15.0-75.82
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1104.112 | < 5.15.0-1038.43
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.20-1
Linux1 product
  • linux≥ 21fab1d0595eacf781705ec3509012a28f298245, < da1a955c48a16e16e925d6544793914e52a6fa51 | ≥ 21fab1d0595eacf781705ec3509012a28f298245, < 9e5c7d52085b8c84bc82a261580f0eb170039325 | ≥ 21fab1d0595eacf781705ec3509012a28f298245, < 467afb1dd630d8c6d172bd6cacc125199b5f4f2d | ≥ 21fab1d0595eacf781705ec3509012a28f298245, < e4dd25da784b2e07dbfbf04509afa4c5a1375227 | ≥ 21fab1d0595eacf781705ec3509012a28f298245, < 2b28a7d261cb309912596d6a2d383ca370483527 | ≥ 21fab1d0595eacf781705ec3509012a28f298245, < 0dfe68394cbe1d4fe579fb325ecc813c50528c5a | ≥ 21fab1d0595eacf781705ec3509012a28f298245, < 799e8dd2022d2e13f0c5c1906b40ceca07a23349 | ≥ 21fab1d0595eacf781705ec3509012a28f298245, < 9b4f5028e493cb353a5c8f5c45073eeea0303abd | 2.6.32

3 vendors · 124 products

References

12 links
Show all 12 references