CVE-2023-33980

HIGHNVD 7.57.5—

7.5

Bramble Synchronisation Protocol (BSP) in Briar before 1.4.22 allows attackers to cause a denial of service (repeated application crashes) via a series of long messages to a contact.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 64.9%
KEV: Not listed

Published

May 24, 2023

Last Modified

January 16, 2025

References (4)

cve@mitrehttps://briarproject.org/news/2023-three-security-issues-found-and-fixed/
cve@mitrehttps://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_YuanmingSong.pdf
af854a3a-2127-422b-91ae-364da2661108https://briarproject.org/news/2023-three-security-issues-found-and-fixed/
af854a3a-2127-422b-91ae-364da2661108https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_YuanmingSong.pdf

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 16× 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.

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Frequently asked(5)

What is CVE-2023-33980?

CVE-2023-33980 is a high vulnerability published on May 24, 2023. Bramble Synchronisation Protocol (BSP) in Briar before 1.4.22 allows attackers to cause a denial of service (repeated application crashes) via a series of long messages to a contact.

When was CVE-2023-33980 disclosed?

CVE-2023-33980 was first published in the National Vulnerability Database on May 24, 2023, with the most recent update on January 16, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-33980 actively exploited?

CVE-2023-33980 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 64.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-33980?

CVE-2023-33980 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2023-33980?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-33980, 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

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CVE-2023-33980

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-33980?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same CWE)