CVE-2023-2884

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.7%, top 51% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG), Use of Insufficiently Random Values vulnerability in CBOT Chatbot allows Signature Spoofing by Key Recreation.

This issue affects Chatbot: before Core: v4.0.3.4 Panel: v4.0.3.7.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
—
EPSS
49.0%
KEV
Not listed

Published

May 25, 2023

Last Modified

May 22, 2026

Advisory Details (2)

Auto-updated Jun 20, 2026
No patch confirmed yet.
generic

T.C. Siber Güvenlik Başkanlığı

https://www.usom.gov.tr/bildirim/tr-23-0293
generic

T.C. Siber Güvenlik Başkanlığı

https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-23-0293

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 47× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 110 total refreshes for this CVE.

  1. 2026-07-22 23:09 UTCEG score recompute▲ 3.40
  2. 2026-07-22 14:06 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2023-2884?
CVE-2023-2884 is a critical vulnerability published on May 25, 2023. Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG), Use of Insufficiently Random Values vulnerability in CBOT Chatbot allows Signature Spoofing by Key Recreation. This issue affects Chatbot: before Core: v4.0.3.4 Panel: v4.0.3.7.
When was CVE-2023-2884 disclosed?
CVE-2023-2884 was first published in the National Vulnerability Database on May 25, 2023, with the most recent update on May 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-2884 actively exploited?
CVE-2023-2884 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-2023-2884?
CVE-2023-2884 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2023-2884?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-2884, 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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