5.5

CVE-2021-47644: linux

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2021-47644DEBIAN-CVE-2021-47644
Published 26-02-2025Last modified 26-08-2026
Open JSON

Vulnerability summary

CVE-2021-47644 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 16.2% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.26%
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 5 · Related 5
SUSE-SU-2025:0834-1SUSE-SU-2025:1027-1SUSE-SU-2025:1176-1SUSE-SU-2025:1183-1SUSE-SU-2025:1241-1

Timeline

  1. 26-02-2025
    PublishedVulnerability first disclosed.
  2. 26-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: media: staging: media: zoran: move videodev alloc Move some code out of zr36057_init() and create new functions for handling zr->video_dev. This permit to ease code reading and fix a zr->video_dev memory leak.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.26%

Chance of exploitation in the next 30 days

Percentile

16%

Versus all other CVEs

30-day change

0.00 pp

From 0.25% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.26%

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

Ubuntu108 products
  • linuxAll versions (No fix recorded) | < 5.15.0-37.39
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1011.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 8dce4b265a5357731058f69645840dabc718c687 | ≥ 61c3b19f7b9eb7c7838fd35f86566230fefd6550, < bd01629315ffd5b63da91d0bd529a77d30e55028 | ≥ 61c3b19f7b9eb7c7838fd35f86566230fefd6550, < ff3357bffd9fb78f59762d8955afc7382a279079 | ≥ 61c3b19f7b9eb7c7838fd35f86566230fefd6550, < c1ba65100a359fe28cfe37e09e10c99f247cbf1e | ≥ 61c3b19f7b9eb7c7838fd35f86566230fefd6550, < 1e501ec38796f43e995731d1bcd4173cb1ccfce0 | ≥ 61c3b19f7b9eb7c7838fd35f86566230fefd6550, < 82e3a496eb56da0b9f29fdc5b63cedb3289e91de | 2.6.12 | 5.10
  • linux_kernel< 5.10.110 | ≥ 5.11, < 5.15.33 | ≥ 5.16, < 5.16.19 | ≥ 5.17, < 5.17.2
Debian1 product
  • linux< 5.17.3-1

3 vendors · 111 products

References

10 links