CVE-2023-53201: linux
Vulnerability summary
CVE-2023-53201 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.6% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 15 · Related 15Timeline
- 15-09-2025PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: wraparound mbox producer index Driver is not handling the wraparound of the mbox producer index correctly. Currently the wraparound happens once u32 max is reached. Bit 31 of the producer index register is special and should be set only once for the first command. Because the producer index overflow setting bit31 after a long time, FW goes to initialization sequence and this causes FW hang. Fix is to wraparound the mbox producer index once it reaches u16 max.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.17%
Chance of exploitation in the next 30 days
Percentile
6%
Versus all other CVEs
30-day change
0.00 pp
From 0.16% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu122 products
- linuxAll versions (No fix recorded) | < 5.15.0-86.96
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.15.0-1047.52
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 1ac5a404797523cedaf424a3aaa3cf8f9548dff8, < 9341501e2f7af29f5b5562c2840a7fde40eb7de4 | ≥ 1ac5a404797523cedaf424a3aaa3cf8f9548dff8, < 79226176cdd1b65a1e6a90e0e1a2b490f0a9df33 | ≥ 1ac5a404797523cedaf424a3aaa3cf8f9548dff8, < c9be352be9bb15e6b83e40abc4df7f4776b435ba | ≥ 1ac5a404797523cedaf424a3aaa3cf8f9548dff8, < 7bfa0303fbc265c94cfbd17505c55b99848aa4e3 | ≥ 1ac5a404797523cedaf424a3aaa3cf8f9548dff8, < 50d77c3739b2b15e9e1f1c9cbe50037d294800f8 | ≥ 1ac5a404797523cedaf424a3aaa3cf8f9548dff8, < 0af91306e17ef3d18e5f100aa58aa787869118af | 4.11
- linux_kernel≥ 4.11, < 5.10.188 | ≥ 5.11, < 5.15.121 | ≥ 5.16, < 6.1.39 | ≥ 6.2, < 6.3.13 | ≥ 6.4, < 6.4.4
Debian1 product
- linux< 6.1.52-1 | < 6.4.4-1
3 vendors · 125 products