CVE-2023-53687: linux
Vulnerability summary
CVE-2023-53687 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 3.4% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 16 · Related 15Timeline
- 07-10-2025PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: tty: serial: samsung_tty: Fix a memory leak in s3c24xx_serial_getclk() when iterating clk When the best clk is searched, we iterate over all possible clk. If we find a better match, the previous one, if any, needs to be freed. If a better match has already been found, we still need to free the new one, otherwise it leaks.
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
0.14%
Chance of exploitation in the next 30 days
Percentile
3%
Versus all other CVEs
30-day change
0.00 pp
From 0.14% 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 causeAffected systems
Ubuntu123 products
- linuxAll versions (No fix recorded) | < 5.4.0-166.183 | < 5.15.0-86.96
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.4.0-1113.123 | < 5.15.0-1047.52
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 5f5a7a5578c5885201cf9c85856f023fe8b81765, < 933e5b2998bc3a527d15efbf1e97c9e63297aa3c | ≥ 5f5a7a5578c5885201cf9c85856f023fe8b81765, < 01dd8a43a84616c830782166ba3cceb01ad95363 | ≥ 5f5a7a5578c5885201cf9c85856f023fe8b81765, < 46574e5a0a2aee41e6ebb979cfe1dbaea8693e16 | ≥ 5f5a7a5578c5885201cf9c85856f023fe8b81765, < 1962717c4649e026a4252fe6625175affd28a593 | ≥ 5f5a7a5578c5885201cf9c85856f023fe8b81765, < 9dd8091959bc41fee51d0827276a2b982e84adf0 | ≥ 5f5a7a5578c5885201cf9c85856f023fe8b81765, < f0bf102ef9b05d7294bd8d506755465f6867d944 | ≥ 5f5a7a5578c5885201cf9c85856f023fe8b81765, < 1f426293fef1c13742b2a685bf7e363f51f6ee03 | ≥ 5f5a7a5578c5885201cf9c85856f023fe8b81765, < 832e231cff476102e8204a9e7bddfe5c6154a375 | 3.3
- linux_kernel≥ 3.3, < 4.14.322 | ≥ 4.15, < 4.19.291 | ≥ 4.20, < 5.4.251 | ≥ 5.5, < 5.10.188 | ≥ 5.11, < 5.15.121 | ≥ 5.16, < 6.1.40 | ≥ 6.2, < 6.4.5
Debian1 product
- linux< 6.1.52-1 | < 6.4.11-1
3 vendors · 126 products
