7.8

CVE-2021-28375: fedoraproject fedora Missing Authorization

Modified
AliasesUBUNTU-CVE-2021-28375DEBIAN-CVE-2021-28375
Published 15-03-2021Last modified 03-08-2024

Vulnerability summary

CVE-2021-28375 is a high (CVSS 7.8) Missing Authorization vulnerability in fedoraproject fedora. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 23.3% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.30%
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 17 · Related 15
MGASA-2021-0151MGASA-2021-0152OPENSUSE-SU-2021:0532-1OPENSUSE-SU-2021:0758-1OPENSUSE-SU-2021:1975-1OPENSUSE-SU-2021:1977-1

Timeline

  1. 15-03-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in the Linux kernel through 5.11.6. fastrpc_internal_invoke in drivers/misc/fastrpc.c does not prevent user applications from sending kernel RPC messages, aka CID-20c40794eb85. This is a related issue to CVE-2019-2308.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.30%

Chance of exploitation in the next 30 days

Percentile

23%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.30% 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.

Ubuntu42 products
  • linux< 5.4.0-73.82
  • linux-aws< 5.4.0-1048.50
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.3All versions (No fix recorded)
  • linux-aws-5.4< 5.4.0-1048.50~18.04.1
Netapp2 products
Debian1 product
  • linux< 5.10.24-1
Fedoraproject1 product
Linux1 product
  • linux_kernel≥ 5.1, < 5.4.106 | ≥ 5.5, < 5.10.24 | ≥ 5.11, < 5.11.7

5 vendors · 47 products

References

16 links
Show all 16 references