CVE-2023-53541: mtd: rawnand: brcmnand: Fix potential out-of-bounds access in oob write
Vulnerability summary
CVE-2023-53541 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 6.1% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 14 · Related 14Timeline
- 04-10-2025PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: brcmnand: Fix potential out-of-bounds access in oob write When the oob buffer length is not in multiple of words, the oob write function does out-of-bounds read on the oob source buffer at the last iteration. Fix that by always checking length limit on the oob buffer read and fill with 0xff when reaching the end of the buffer to the oob registers.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.17%
Chance of exploitation in the next 30 days
Percentile
6%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.16% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu123 products
- linuxAll versions (No fix recorded) | < 5.4.0-169.187 | < 5.15.0-94.104
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.4.0-1116.126 | < 5.15.0-1053.58
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 27c5b17cd1b10564fa36f8f51e4b4b41436ecc32, < 2bc3d6ac704ea7263175ea3da663fdbbb7f3dd8b | ≥ 27c5b17cd1b10564fa36f8f51e4b4b41436ecc32, < 14b1d00520b4d6a4818364334ce472b79cfc8976 | ≥ 27c5b17cd1b10564fa36f8f51e4b4b41436ecc32, < aae45746f4aee9818296e0500e0703e9d8caa5b8 | ≥ 27c5b17cd1b10564fa36f8f51e4b4b41436ecc32, < d00b031266514a9395124704630b056a5185ec17 | ≥ 27c5b17cd1b10564fa36f8f51e4b4b41436ecc32, < 2353b7bb61e45e7cfd21505d0c6747ac8c9496a1 | ≥ 27c5b17cd1b10564fa36f8f51e4b4b41436ecc32, < 45fe4ad7f439799ee1b7b5f80bf82e8b34a98d25 | ≥ 27c5b17cd1b10564fa36f8f51e4b4b41436ecc32, < 648d1150a688698e37f7aaf302860180901cb30e | ≥ 27c5b17cd1b10564fa36f8f51e4b4b41436ecc32, < 5d53244186c9ac58cb88d76a0958ca55b83a15cd | 4.2
- linux_kernel≥ 4.2, < 4.14.326 | ≥ 4.15, < 4.19.295 | ≥ 4.20, < 5.4.257 | ≥ 5.5, < 5.10.195 | ≥ 5.11, < 5.15.132 | ≥ 5.16, < 6.1.54 | ≥ 6.2, < 6.5.4
Debian1 product
- linux< 6.1.55-1 | < 6.5.6-1
3 vendors · 126 products
