CVE-2020-13949

HIGHNVD 7.57.5—

7.5

In Apache Thrift 0.9.3 to 0.13.0, malicious RPC clients could send short messages which would result in a large memory allocation, potentially leading to denial of service.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 75.0%
KEV: Not listed

Published

February 12, 2021

Last Modified

November 21, 2024

References (216)

Vendor Advisories for CVE-2020-13949(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

RHSA-2021:5134
Red Hat Product SecurityCritical
Red Hat Security Advisory: Red Hat Fuse 7.10.0 release and security update

Patch Availability(3)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
redhat	eap7-wildfly-openssl-linux-0:1.0.12-6.Final_redhat_00001.1.ep7.el7	2025-06-25	redhat
redhat	libthrift	2021-12-14	redhat
redhat	distributed-tracing/jaeger-rhel8-operator:1.20.4-18	2021-06-24	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)

Maven(1)

Package	Vulnerable range	Fixed in	Dependents
org.apache.thrift:libthrift	0.10.0 ... 0.9.3-1 (6 versions)	0.14.0	—

Weakness Classification(1)

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

CWE-400Uncontrolled Resource Consumption (Denial of Service)

Additional Vendor Advisories

(2)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 8× in last 7d / 8× 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.

2026-05-27 13:39 UTCepss_batch
2026-05-26 20:50 UTCEG score recompute
2026-05-26 20:50 UTCVendor advisory
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 07:16 UTCOSV refresh

Frequently asked(5)

What is CVE-2020-13949?

CVE-2020-13949 is a high vulnerability published on February 12, 2021. In Apache Thrift 0.9.3 to 0.13.0, malicious RPC clients could send short messages which would result in a large memory allocation, potentially leading to denial of service.

When was CVE-2020-13949 disclosed?

CVE-2020-13949 was first published in the National Vulnerability Database on February 12, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-13949 actively exploited?

CVE-2020-13949 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 75.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-13949?

CVE-2020-13949 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2020-13949?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-13949, 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-2020-13949

Explore →

Is Your Infrastructure Affected by CVE-2020-13949?

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

Start Free Scan →Browse All CVEs