CVE-2007-4891

MEDIUMCVSS v2 · 6.86.8—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 6.8 — v2 rates that MEDIUM (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:M/Au:N/C:P/I:P/A:P. 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 31.0% 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
6.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 31%CVSS v2: 6.8Exploit: Exploit-DB (verified) · epss top5pct · public exploitExposed: 0

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

A certain ActiveX control in PDWizard.ocx 6.0.0.9782 and earlier in Microsoft Visual Studio 6.0 exposes dangerous (1) StartProcess, (2) SyncShell, (3) SaveAs, (4) CABDefaultURL, (5) CABFileName, and (6) CABRunFile methods, which allows remote attackers to execute arbitrary programs and have other impacts, as demonstrated using absolute pathnames in arguments to StartProcess and SyncShell.

CVSS v2.0 (legacy)
6.8MEDIUMNVD never assigned a CVSS v3 rating to this CVE
EG Score
6.8(low)
EG Risk
61(Track)
EG Risk 61/100SSVC: 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
Severity68% × 45%
Exploitation65% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
31%
EPSS %ILE
98%
KEV
Not listed

Published

September 14, 2007

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 11× in last 7d / 24× 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. 2026-07-26 13:33 UTCEG score recompute▲ 6.80
  2. 2026-07-25 14:12 UTCEPSS rescore
  3. 2026-07-24 14:11 UTCEPSS rescore
  4. 2026-07-23 14:13 UTCEPSS rescore
  5. 2026-07-23 00:54 UTCEG score recompute
  6. 2026-07-23 00:33 UTCEG score recompute▼ 0.20
  7. 2026-07-22 23:59 UTCEG score recompute▲ 0.20
  8. 2026-07-22 21:38 UTCEG score recompute
  9. 2026-07-22 14:03 UTCEPSS rescore
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  1. 2026-06-25 13:46 UTCEPSS rescore
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  5. 2026-06-23 21:29 UTCEPSS rescore
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  20. 2026-06-10 13:17 UTCEPSS rescore
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  26. 2026-06-02 20:10 UTCEPSS rescore
  27. 2026-06-02 20:10 UTCEPSS rescore
  28. 2026-05-31 00:58 UTCEG score recompute
  29. 2026-05-31 00:58 UTCGHSA enrichment
  30. 2026-05-31 00:13 UTCEPSS rescore
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  32. 2026-05-29 13:40 UTCEPSS rescore
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  36. 2026-05-27 13:38 UTCEPSS rescore
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  41. 2026-05-26 07:16 UTCEPSS rescore
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  43. 2026-05-22 21:15 UTCEPSS rescore
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  45. 2026-05-21 22:38 UTCEPSS rescore
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  48. 2026-05-20 11:20 UTCEPSS rescore
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  50. 2026-05-18 21:29 UTCEPSS rescore
  51. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(1 reference)

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

  • Exploit-DBEDB-4393✓ verified
    First seen Sep 11, 2007

    Microsoft Visual Studio 6.0 - 'PDWizard.ocx' Remote Command Execution

    Open source ↗

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2007-4891?
CVE-2007-4891 is a medium vulnerability published on September 14, 2007. A certain ActiveX control in PDWizard.ocx 6.0.0.9782 and earlier in Microsoft Visual Studio 6.0 exposes dangerous (1) StartProcess, (2) SyncShell, (3) SaveAs, (4) CABDefaultURL, (5) CABFileName, and (6) CABRunFile methods, which allows remote attackers to execute arbitrary programs and have other…
When was CVE-2007-4891 disclosed?
CVE-2007-4891 was first published in the National Vulnerability Database on September 14, 2007, 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-2007-4891 actively exploited?
CVE-2007-4891 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 31% probability of exploitation in the next 30 days, which ranks it in the top 1.9% of all scored CVEs.
How do I remediate CVE-2007-4891?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2007-4891, 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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