5.5

CVE-2020-10781: debian debian_linux

Modified
AliasesUBUNTU-CVE-2020-10781DEBIAN-CVE-2020-10781
Published 16-09-2020Last modified 08-10-2026

Vulnerability summary

CVE-2020-10781 is a medium (CVSS 5.5) vulnerability in debian debian_linux. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 24% 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
0.31%
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 16 · Related 14
DLA-2385-1MGASA-2020-0333OPENSUSE-SU-2020:1153-1OPENSUSE-SU-2020:1236-1OPENSUSE-SU-2021:0242-1SUSE-SU-2020:2102-1

Timeline

  1. 16-09-2020
    PublishedVulnerability first disclosed.
  2. 08-10-2026
    Last modifiedVulnerability information updated.

Description

A flaw was found in the Linux Kernel before 5.8-rc6 in the ZRAM kernel module, where a user with a local account and the ability to read the /sys/class/zram-control/hot_add file can create ZRAM device nodes in the /dev/ directory. This read allocates kernel memory and is not accounted for a user that triggers the creation of that ZRAM device. With this vulnerability, continually reading the device may consume a large amount of system memory and cause the Out-of-Memory (OOM) killer to activate and terminate random userspace processes, possibly making the system inoperable.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.31%

Chance of exploitation in the next 30 days

Percentile

24%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.31% 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.

Ubuntu39 products
  • linux< 4.15.0-115.116 | < 5.4.0-45.49
  • linux-aws< 4.15.0-1080.84 | < 5.4.0-1022.22
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.3All versions (No fix recorded)
  • linux-aws-5.4< 5.4.0-1022.22~18.04.1
Debian2 products
Linux1 product
  • linux_kernel< 5.8.0 | 5.8.0 | 5.8.0:rc1 | 5.8.0:rc2 | 5.8.0:rc3 | 5.8.0:rc4 | 5.8.0:rc5
Linux kernel1 product

4 vendors · 43 products

References

11 links
Show all 11 references