CVE-2020-15853

MEDIUMNVD 5.35.3—

5.3

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 v3: 5.3
EG Score: 5.3(medium)
EPSS: 49.0%
KEV: Not listed

Published

October 18, 2022

Last Modified

May 13, 2025

References (2)

patrick@puiterwijkhttps://github.com/fedora-infra/supybot-fedora/issues/69
af854a3a-2127-422b-91ae-364da2661108https://github.com/fedora-infra/supybot-fedora/issues/69

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-400Uncontrolled Resource Consumption (Denial of Service)

Data Freshness Timeline

(refreshed 11× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-25 13:33 UTCEG score recompute
2026-05-25 13:33 UTCGHSA enrichment
2026-05-25 07:46 UTCOSV refresh
2026-05-24 16:48 UTCepss_batch

Frequently asked(5)

What is CVE-2020-15853?

CVE-2020-15853 is a medium vulnerability published on October 18, 2022. 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.

When was CVE-2020-15853 disclosed?

CVE-2020-15853 was first published in the National Vulnerability Database on October 18, 2022, with the most recent update on May 13, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-15853 actively exploited?

CVE-2020-15853 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 49.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-15853?

CVE-2020-15853 has a CVSS v3 base score of 5.3 (NVD).

How do I remediate CVE-2020-15853?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-15853, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2020-15853

Explore →

Is Your Infrastructure Affected by CVE-2020-15853?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2020-15853

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-15853?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)