5.5

CVE-2021-47260: linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2021-47260DEBIAN-CVE-2021-47260
Published 21-05-2024Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2021-47260 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 13.7% 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 10 · Related 10
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: NFS: Fix a potential NULL dereference in nfs_get_client() None of the callers are expecting NULL returns from nfs_get_client() so this code will lead to an Oops. It's better to return an error pointer. I expect that this is dead code so hopefully no one is affected.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

14%

Versus all other CVEs

30-day change

0.00 pp

From 0.24% on 20-09-2026

20-09-202620-10-2026
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

Ubuntu86 products
  • linux< 4.4.0-270.304 | < 4.15.0-156.163 | < 5.4.0-81.91
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 4.4.0-1145.151 | < 4.4.0-1183.198 | < 4.15.0-1111.118 | < 5.4.0-1055.58
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 31434f496abb9f3410b10f541462fe58613dd3ad, < fab8bfdfb4aac9e4e8363666333adfdf21e89106 | ≥ 31434f496abb9f3410b10f541462fe58613dd3ad, < a979e601000982a3ca693171a6d4dffc47f8ad00 | ≥ 31434f496abb9f3410b10f541462fe58613dd3ad, < 634f17ff1d59905eb3b4bbbc00805961d08beaee | ≥ 31434f496abb9f3410b10f541462fe58613dd3ad, < 4b380a7d84ef2ce3f4f5bec5d8706ed937ac6502 | ≥ 31434f496abb9f3410b10f541462fe58613dd3ad, < 0057ecef9f324007c0ba5fcca4ddd131178ce78b | ≥ 31434f496abb9f3410b10f541462fe58613dd3ad, < 279ad78a00f8b9c5ff24171a59297187a3bd44b7 | ≥ 31434f496abb9f3410b10f541462fe58613dd3ad, < 58ddf61f10b8f9b7b1341644bfee2f1c6508d4e1 | ≥ 31434f496abb9f3410b10f541462fe58613dd3ad, < 09226e8303beeec10f2ff844d2e46d1371dc58e0 | 3.17
  • linux_kernel≥ 3.17, < 4.4.273 | ≥ 4.5, < 4.9.273 | ≥ 4.10, < 4.14.237 | ≥ 4.15, < 4.19.195 | ≥ 4.20, < 5.4.126 | ≥ 5.5, < 5.10.44 | ≥ 5.11, < 5.12.11 | 5.13:rc1 | 5.13:rc2 | 5.13:rc3 | 5.13:rc4 | 5.13:rc5
Debian1 product
  • linux< 5.10.46-1

3 vendors · 89 products

References

15 links
Show all 15 references