5.5

CVE-2021-47330: linux

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2021-47330DEBIAN-CVE-2021-47330
Published 21-05-2024Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2021-47330 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.7% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.24%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 8 · Related 8
SUSE-SU-2024:1979-1SUSE-SU-2024:1983-1SUSE-SU-2024:2010-1SUSE-SU-2024:2183-1SUSE-SU-2024:2184-1SUSE-SU-2024:2185-1

Timeline

  1. 21-05-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: tty: serial: 8250: serial_cs: Fix a memory leak in error handling path In the probe function, if the final 'serial_config()' fails, 'info' is leaking. Add a resource handling path to free this memory.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

15%

Versus all other CVEs

30-day change

0.00 pp

From 0.24% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.24%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu88 products
  • linuxAll versions (No fix recorded) | < 4.4.0-274.308 | < 4.15.0-156.163 | < 5.4.0-88.99
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 4.4.0-1149.155 | < 4.4.0-1187.202 | < 4.15.0-1111.118 | < 5.4.0-1057.60
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 15b99ac1729503db9e6dc642a50b9b6cb3bf51f9, < b5a2799cd62ed30c81b22c23028d9ee374e2138c | ≥ 15b99ac1729503db9e6dc642a50b9b6cb3bf51f9, < 331f5923fce4f45b8170ccf06c529e8eb28f37bc | ≥ 15b99ac1729503db9e6dc642a50b9b6cb3bf51f9, < 34f4590f5ec9859ea9136249f528173d150bd584 | ≥ 15b99ac1729503db9e6dc642a50b9b6cb3bf51f9, < cddee5c287e26f6b2ba5c0ffdfc3a846f2f10461 | ≥ 15b99ac1729503db9e6dc642a50b9b6cb3bf51f9, < ee16bed959862a6de2913f71a04cb563d7237b67 | ≥ 15b99ac1729503db9e6dc642a50b9b6cb3bf51f9, < 7a80f71601af015856a0aeb1e3c294037ac3dd32 | ≥ 15b99ac1729503db9e6dc642a50b9b6cb3bf51f9, < c39cf4df19acf0133fa284a8cd83fad42cd13cc2 | ≥ 15b99ac1729503db9e6dc642a50b9b6cb3bf51f9, < b2ef1f5de40342de44fc5355321595f91774dab5 | ≥ 15b99ac1729503db9e6dc642a50b9b6cb3bf51f9, < fad92b11047a748c996ebd6cfb164a63814eeb2e | 2.6.17
  • linux_kernel< 4.4.276 | ≥ 4.5, < 4.9.276 | ≥ 4.10, < 4.14.240 | ≥ 4.15, < 4.19.198 | ≥ 4.20, < 5.4.134 | ≥ 5.5, < 5.10.52 | ≥ 5.11, < 5.12.19 | ≥ 5.13, < 5.13.4
Debian1 product
  • linux< 5.14.6-1

3 vendors · 91 products

References

15 links
Show all 15 references