5.5

CVE-2021-47645: media: staging: media: zoran: calculate the right buffer number for zoran_reap_stat_com

Modified
AliasesUBUNTU-CVE-2021-47645DEBIAN-CVE-2021-47645
Published 26-02-2025Last modified 11-08-2026

Vulnerability summary

CVE-2021-47645 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 17.1% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
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 listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5 · Related 5
SUSE-SU-2025:1027-1SUSE-SU-2025:1176-1SUSE-SU-2025:1183-1SUSE-SU-2025:1241-1SUSE-SU-2025:1293-1

Timeline

  1. 26-02-2025
    PublishedVulnerability first disclosed.
  2. 11-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: media: staging: media: zoran: calculate the right buffer number for zoran_reap_stat_com On the case tmp_dcim=1, the index of buffer is miscalculated. This generate a NULL pointer dereference later. So let's fix the calcul and add a check to prevent this to reappear.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.26%

Chance of exploitation in the next 30 days

Percentile

17%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.25% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

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≥ 83f89a8bcbc3c520a889b5fc7c4b95669d712f65, < 8dce4b265a5357731058f69645840dabc718c687 | ≥ 83f89a8bcbc3c520a889b5fc7c4b95669d712f65, < bafec1a6ba4b187a7fcdcfce0faebdc623d4ef8e | ≥ 83f89a8bcbc3c520a889b5fc7c4b95669d712f65, < 7e76f3ed7ab2ae026c6ef9cc23096a7554af8c52 | ≥ 83f89a8bcbc3c520a889b5fc7c4b95669d712f65, < 20db2ed1e2f9fcd417fa67853e5154f0c2537d6c | ≥ 83f89a8bcbc3c520a889b5fc7c4b95669d712f65, < 20811bbe685ca3eddd34b0c750860427d7030910 | 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