CVE-2023-42183

MEDIUMNVD 5.35.3—

5.3

lockss-daemon (aka Classic LOCKSS Daemon) before 1.77.3 performs post-Unicode normalization, which may allow bypass of intended access restrictions, such as when U+1FEF is converted to a backtick.

CVSS v3: 5.3
EG Score: 5.3(medium)
EPSS: 41.4%
KEV: Not listed

Published

December 15, 2023

Last Modified

November 21, 2024

References (2)

cve@mitrehttps://github.com/lockss/lockss-daemon/security/advisories/GHSA-mgqj-hphf-9588
af854a3a-2127-422b-91ae-364da2661108https://github.com/lockss/lockss-daemon/security/advisories/GHSA-mgqj-hphf-9588

Weakness Classification(1)

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

CWE-116Improper Encoding or Escaping of Output

Data Freshness Timeline

(refreshed 12× 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 20:12 UTCepss_batch
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2026-05-27 13:39 UTCepss_batch
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2026-05-26 07:18 UTCepss_batch
2026-05-24 12:03 UTCEG score recompute

Frequently asked(5)

What is CVE-2023-42183?

CVE-2023-42183 is a medium vulnerability published on December 15, 2023. lockss-daemon (aka Classic LOCKSS Daemon) before 1.77.3 performs post-Unicode normalization, which may allow bypass of intended access restrictions, such as when U+1FEF is converted to a backtick.

When was CVE-2023-42183 disclosed?

CVE-2023-42183 was first published in the National Vulnerability Database on December 15, 2023, 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-2023-42183 actively exploited?

CVE-2023-42183 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 41.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-42183?

CVE-2023-42183 has a CVSS v3 base score of 5.3 (NVD).

How do I remediate CVE-2023-42183?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-42183, 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.

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CVE-2023-42183

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-42183?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)