5.3

CVE-2020-15853: fedoraproject supybot-fedora Uncontrolled Resource Consumption

CVSS: 5.3v3.1MediumModified
Published 18-10-2022Last modified 13-05-2025
Open JSON

Vulnerability summary

CVE-2020-15853 is a medium (CVSS 5.3) Uncontrolled Resource Consumption vulnerability in fedoraproject supybot-fedora. EPSS estimates a 0.71% chance of exploitation in the next 30 days, higher than 52.9% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.71%
0%100%
Low · +0.08 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 18-10-2022
    PublishedVulnerability first disclosed.
  2. 13-05-2025
    Last modifiedVulnerability information updated.

Description

supybot-fedora implements the command 'refresh', that refreshes the cache of all users from FAS. This takes quite a while to run, and zodbot stops responding to requests during this time.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.71%

Chance of exploitation in the next 30 days

Percentile

53%

Versus all other CVEs

30-day change

+0.08 pp

From 0.64% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.71%

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

Fedoraproject1 product

1 vendor · 1 product

References

1 links