7.2

CVE-2021-28972: fedoraproject fedora

Modified
AliasesUBUNTU-CVE-2021-28972DEBIAN-CVE-2021-28972
Published 22-03-2021Last modified 08-10-2026

Vulnerability summary

CVE-2021-28972 is a high (CVSS 7.2) vulnerability in fedoraproject fedora. EPSS estimates a 0.80% chance of exploitation in the next 30 days, higher than 56.8% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.7, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.2/10
010
High · v2.0 (NVD)
EPSS score
0.80%
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 28 · Related 25
DLA-2690-1MGASA-2021-0174MGASA-2021-0175OPENSUSE-SU-2021:0532-1OPENSUSE-SU-2021:0758-1OPENSUSE-SU-2021:1975-1

Timeline

  1. 22-03-2021
    PublishedVulnerability first disclosed.
  2. 08-10-2026
    Last modifiedVulnerability information updated.

Description

In drivers/pci/hotplug/rpadlpar_sysfs.c in the Linux kernel through 5.11.8, the RPA PCI Hotplug driver has a user-tolerable buffer overflow when writing a new device name to the driver from userspace, allowing userspace to write data to the kernel stack frame directly. This occurs because add_slot_store and remove_slot_store mishandle drc_name '\0' termination, aka CID-cc7a0bb058b8.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.80%

Chance of exploitation in the next 30 days

Percentile

57%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.80% 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, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu50 products
  • linuxAll versions (No fix recorded) | < 4.4.0-219.252 | < 4.15.0-144.148 | < 5.4.0-74.83
  • linux-aws< 4.4.0-1099.104 | < 4.4.0-1135.149 | < 4.15.0-1103.110 | < 5.4.0-1049.51
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.3All versions (No fix recorded)
  • linux-aws-5.4< 5.4.0-1049.51~18.04.1
Netapp3 products
Debian1 product
  • linux< 5.10.26-1
Fedoraproject1 product
Linux1 product
  • linux_kernel< 4.4.263 | > 4.5, ≤ 4.9.263 | ≥ 4.10, < 4.14.227 | > 4.15, ≤ 4.19.183 | ≥ 4.20, < 5.4.108 | ≥ 5.5.0, < 5.10.26 | ≥ 5.11, < 5.11.9

5 vendors · 56 products

References

16 links
Show all 16 references