CVE-2009-0545

HIGHCVSS v2 · 10.010.0—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 10.0 — v2 rates that HIGH (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:L/Au:N/C:C/I:C/A:C. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 90.4% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.

Sources: epss, nvd_v2
Weaponized
10.0EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 90%
  • Public exploit code is available (Metasploit, Exploit-DB (verified), epss top5pct, epss high, public exploit)
CISA-KEV: Not listedEPSS PROB: 90%CVSS v2: 10.0Exploit: Metasploit · Exploit-DB (verified) · epss top5pct · epss high · public exploitExposed: 0

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

cgi-bin/kerbynet in ZeroShell 1.0beta11 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in the type parameter in a NoAuthREQ x509List action.

CVSS v2.0 (legacy)
10.0HIGHNVD never assigned a CVSS v3 rating to this CVE
EG Score
10.0(low)
EG Risk
86(Track)
EG Risk 86/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity100% × 45%
Exploitation90% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
90%
EPSS %ILE
100%
KEV
Not listed

Published

February 12, 2009

Last Modified

April 23, 2026

References (12)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 1× in last 7d / 4× 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.

  1. 2026-08-27 14:19 UTCEPSS rescore
  2. 2026-08-19 16:58 UTCEPSS rescore
  3. 2026-08-08 16:31 UTCEPSS rescore
  4. 2026-07-30 16:22 UTCEPSS rescore
  5. 2026-07-26 13:37 UTCEG score recompute▲ 10.00
  6. 2026-07-24 14:12 UTCEPSS rescore
  7. 2026-07-23 01:05 UTCGHSA enrichment
  8. 2026-07-23 01:04 UTCGHSA enrichment
  9. 2026-07-23 01:03 UTCGHSA enrichment
  10. 2026-07-23 01:03 UTCGHSA enrichment
  11. 2026-07-23 01:02 UTCGHSA enrichment
  12. 2026-07-23 01:01 UTCGHSA enrichment
  13. 2026-07-23 00:59 UTCGHSA enrichment
  14. 2026-07-23 00:58 UTCGHSA enrichment
  15. 2026-07-23 00:57 UTCGHSA enrichment
  16. 2026-07-23 00:56 UTCGHSA enrichment
  17. 2026-07-23 00:55 UTCGHSA enrichment
  18. 2026-07-23 00:54 UTCGHSA enrichment
  19. 2026-07-23 00:53 UTCGHSA enrichment
  20. 2026-07-23 00:52 UTCGHSA enrichment
  21. 2026-07-23 00:51 UTCGHSA enrichment
  22. 2026-07-23 00:50 UTCGHSA enrichment
  23. 2026-07-23 00:49 UTCGHSA enrichment
  24. 2026-07-23 00:48 UTCGHSA enrichment
  25. 2026-07-23 00:47 UTCGHSA enrichment
Show 43 more
  1. 2026-07-23 00:46 UTCGHSA enrichment
  2. 2026-07-23 00:44 UTCGHSA enrichment
  3. 2026-07-23 00:43 UTCGHSA enrichment
  4. 2026-07-23 00:43 UTCGHSA enrichment
  5. 2026-07-23 00:43 UTCEG score recompute
  6. 2026-07-23 00:42 UTCGHSA enrichment
  7. 2026-07-23 00:40 UTCGHSA enrichment
  8. 2026-07-23 00:38 UTCGHSA enrichment
  9. 2026-07-23 00:36 UTCEG score recompute▼ 9.00
  10. 2026-07-23 00:03 UTCEG score recompute
  11. 2026-07-22 21:42 UTCEG score recompute
  12. 2026-07-22 14:03 UTCEPSS rescore
  13. 2026-07-20 17:03 UTCEPSS rescore
  14. 2026-07-20 17:03 UTCEPSS rescore
  15. 2026-07-15 16:54 UTCEPSS rescore
  16. 2026-07-15 16:54 UTCEPSS rescore
  17. 2026-06-27 03:05 UTCEPSS rescore
  18. 2026-06-23 21:29 UTCEPSS rescore
  19. 2026-06-23 21:29 UTCEPSS rescore
  20. 2026-06-18 17:49 UTCEPSS rescore
  21. 2026-06-18 17:49 UTCEPSS rescore
  22. 2026-06-17 17:49 UTCEPSS rescore
  23. 2026-06-17 17:49 UTCEPSS rescore
  24. 2026-06-15 17:44 UTCEPSS rescore
  25. 2026-06-14 23:14 UTCEPSS rescore
  26. 2026-06-14 23:14 UTCEPSS rescore
  27. 2026-06-08 14:13 UTCEPSS rescore
  28. 2026-06-06 13:44 UTCEPSS rescore
  29. 2026-06-06 13:44 UTCEPSS rescore
  30. 2026-06-06 13:44 UTCEPSS rescore
  31. 2026-06-05 22:44 UTCEPSS rescore
  32. 2026-06-05 22:44 UTCEPSS rescore
  33. 2026-06-04 13:09 UTCEPSS rescore
  34. 2026-06-04 13:09 UTCEPSS rescore
  35. 2026-05-30 18:15 UTCEG score recompute
  36. 2026-05-30 18:15 UTCGHSA enrichment
  37. 2026-05-27 13:38 UTCEPSS rescore
  38. 2026-05-27 13:38 UTCEPSS rescore
  39. 2026-05-26 07:16 UTCEPSS rescore
  40. 2026-05-26 07:16 UTCEPSS rescore
  41. 2026-05-22 21:15 UTCEPSS rescore
  42. 2026-05-22 21:15 UTCEPSS rescore
  43. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 Metasploit module) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Metasploitexploit/unix/webapp/zeroshell_exec✓ verified
    First seen Sep 22, 2013

    ZeroShell Remote Code Execution

    Open source ↗
  • Exploit-DBEDB-8023✓ verified
    First seen Feb 9, 2009

    ZeroShell 1.0beta11 - Remote Code Execution

    Open source ↗
  • Nucleihttp/cves/2009/CVE-2009-0545.yaml
    First seen Jan 1, 2009

    ZeroShell <= 1.0beta11 Remote Code Execution

    Open source ↗

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2009-0545?
CVE-2009-0545 is a high vulnerability published on February 12, 2009. cgi-bin/kerbynet in ZeroShell 1.0beta11 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in the type parameter in a NoAuthREQ x509List action.
When was CVE-2009-0545 disclosed?
CVE-2009-0545 was first published in the National Vulnerability Database on February 12, 2009, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2009-0545 actively exploited?
CVE-2009-0545 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 90% probability of exploitation in the next 30 days, which ranks it in the top 0.2% of all scored CVEs.
How do I remediate CVE-2009-0545?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-0545, 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

Explore the affected products and dependency analysis for CVE-2009-0545

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