CVE-2023-53554: linux Out-of-bounds Write
CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2023-53554DEBIAN-CVE-2023-53554
Published 04-10-2025Last modified 05-08-2026
Vulnerability summary
CVE-2023-53554 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in linux. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 7.3% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v3.1 (CVE.org)EPSS score
0.18%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 14 · Related 14Timeline
- 04-10-2025PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: staging: ks7010: potential buffer overflow in ks_wlan_set_encode_ext() The "exc->key_len" is a u16 that comes from the user. If it's over IW_ENCODING_TOKEN_MAX (64) that could lead to memory corruption.
CVSS metrics
5 scores · 4 sources · 2 versionsHigh 8.4Preferred score · OSV · Ubuntu (Ecosystem advisory) · calculated from vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NSourcesSingle source
High 7.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesAll 4 agree
- 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
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.18%
Chance of exploitation in the next 30 days
Percentile
7%
Versus all other CVEs
30-day change
0.00 pp
From 0.18% on 21-09-2026
21-09-202621-10-2026
EPSS score0.18%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu122 products
- linuxAll versions (No fix recorded) | < 5.4.0-169.187 | < 5.15.0-88.98
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.4.0-1116.126 | < 5.15.0-1049.54
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ b121d84882b97b8668be0b95e9ba50cfd01aa0f1, < 9496fb96ddeb740dc6b966f4a7d8dfb8b93921c6 | ≥ b121d84882b97b8668be0b95e9ba50cfd01aa0f1, < 663fff29fd613e2b0d30c4138157312ba93c4939 | ≥ b121d84882b97b8668be0b95e9ba50cfd01aa0f1, < 5373a1aa91b2298f9305794b8270cf9896be96b6 | ≥ b121d84882b97b8668be0b95e9ba50cfd01aa0f1, < caac4b6c15b66feae4d83f602e1e46f124540202 | ≥ b121d84882b97b8668be0b95e9ba50cfd01aa0f1, < baf420e30364ef9efe3e29a5c0e01e612aebf3fe | ≥ b121d84882b97b8668be0b95e9ba50cfd01aa0f1, < 7ae9f55a495077f838bab466411ee6f38574df9b | ≥ b121d84882b97b8668be0b95e9ba50cfd01aa0f1, < b1b04b56745bc79286c80aa876fabfab1e08ebf1 | ≥ b121d84882b97b8668be0b95e9ba50cfd01aa0f1, < 5f1c7031e044cb2fba82836d55cc235e2ad619dc | 4.12
- linux_kernel≥ 4.12, < 4.14.322 | ≥ 4.15, < 4.19.291 | ≥ 4.20, < 5.4.253 | ≥ 5.5, < 5.10.190 | ≥ 5.11, < 5.15.124 | ≥ 5.16, < 6.1.43 | ≥ 6.2, < 6.4.8 | 6.5:rc1 | 6.5:rc2 | 6.5:rc3
Debian1 product
- linux< 6.1.52-1 | < 6.4.11-1
3 vendors · 125 products
