CVE-2020-28097: linux linux_kernel Out-of-bounds Read
Vulnerability summary
CVE-2020-28097 is a medium (CVSS 5.9) Out-of-bounds Read vulnerability in linux linux_kernel. EPSS estimates a 0.52% chance of exploitation in the next 30 days, higher than 44.1% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 5.9, physical access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 8 · Related 8Timeline
- 24-06-2021PublishedVulnerability first disclosed.
- 08-10-2026Last modifiedVulnerability information updated.
Description
The vgacon subsystem in the Linux kernel before 5.8.10 mishandles software scrollback. There is a vgacon_scrolldelta out-of-bounds read, aka CID-973c096f6a85.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
EPSS trend
Probability
0.52%
Chance of exploitation in the next 30 days
Percentile
44%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.52% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundExploit Reference (seclists.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: physical access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu44 products
- linuxAll versions (No fix recorded) | < 4.4.0-197.229 | < 4.15.0-126.129 | < 5.4.0-56.62
- linux-aws< 4.4.0-1082.86 | < 4.4.0-1118.132 | < 4.15.0-1088.93 | < 5.4.0-1030.31
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.3All versions (No fix recorded)
- linux-aws-5.4< 5.4.0-1030.31~18.04.1
Debian1 product
- linux< 5.8.10-1
Linux1 product
- linux_kernel< 5.8.10
4 vendors · 55 products
References
9 links- github.com/torvalds/linux/commit/973c096f6a85e5b5f2a295126ba6928d9a6afd45X Refsource MISCREPORTPatchThird Party Advisory
