CVE-2008-5547

HIGHCVSS v2 · 9.39.3—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 9.3 — 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:M/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 1.9% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.

Triggered by: NVD CVSS v2.0 (legacy fallback)
Sources: EPSS, NVD CVSS v2.0
9.3EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1.9%CVSS v2: 9.3Exploit: None knownExposed services: Not assessed

No fix has been recorded since the CVE record was published in 2008 — isolate the affected system (restrict network access to it, for example with a firewall, or keep it off the internet) or retire the product.

HAURI ViRobot 2008.12.4.1499 and possibly 2008.9.12.1375, when Internet Explorer 6 or 7 is used, allows remote attackers to bypass detection of malware in an HTML document by placing an MZ header (aka "EXE info") at the beginning, and modifying the filename to have (1) no extension, (2) a .txt extension, or (3) a .jpg extension, as demonstrated by a document containing a CVE-2006-5745 exploit.

CVSS v2.0 (legacy)
9.3HIGHNVD never assigned a CVSS v3 rating to this CVE
EG Score
9.3HIGHlow confidence
EG Risk
47
EG Risk 47/100

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 (value × EchelonGraph’s weight)
Severity93% × 45%
The EG Score, 9.3 of 10.
Exploitation1.9% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability30% × 15%
EchelonGraph's default before algorithm v3.4: CISA had not published Automatable for this CVE.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track or Track* or Attend at high (mission-essential systems).
Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact unknown (not published for this CVE). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix has been recorded since the CVE record was published in 2008. Isolate the affected system within your standard update timelines at low or medium mission impact and sooner than that at high (restrict network access to it, for example with a firewall, or keep it off the internet) or retire the product.
EPSS PROB
1.9%
EPSS %ILE
79th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track or Track* or Attend at high (mission-essential systems).

No fix has been recorded since the CVE record was published in 2008. Isolate the affected system within your standard update timelines at low or medium mission impact and sooner than that at high (restrict network access to it, for example with a firewall, or keep it off the internet) or retire the product.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact unknown (not published for this CVE). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

Published

December 12, 2008

Last Modified

April 23, 2026

References (4)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 18× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 82 of 116 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 18 repeat rows among the latest 100 are merged into the row they repeat. The 34 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-11 13:38 UTCEPSS rescoreEPSS 1.9% · 79th percentile
  2. 2026-10-10 19:53 UTCEPSS rescoreEPSS 1.9% · 79th percentile
  3. 2026-10-09 20:00 UTCEPSS rescoreEPSS 1.9% · 79th percentile
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  10. 2026-10-01 19:42 UTCEPSS rescoreEPSS 1.9% · 78th percentile
  11. 2026-09-30 14:57 UTCEPSS rescoreEPSS 1.9% · 78th percentile
  12. 2026-09-29 07:53 UTCEG score recompute
  13. 2026-09-26 15:52 UTCEPSS rescoreEPSS 1.9% · 78th percentile
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  23. 2026-09-04 04:59 UTCEPSS rescoreEPSS 1.9% · 78th percentile
  24. 2026-08-30 01:14 UTCEPSS rescoreEPSS 1.9% · 77th percentile
  25. 2026-08-28 21:34 UTCEPSS rescoreEPSS 1.9% · 77th percentile
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  1. 2026-08-15 01:24 UTCEPSS rescoreEPSS 1.9% · 77th percentile
  2. 2026-08-08 16:31 UTCEPSS rescoreEPSS 1.9% · 77th percentile
  3. 2026-08-07 16:21 UTCEPSS rescoreEPSS 1.9% · 77th percentile
  4. 2026-08-06 13:41 UTCEPSS rescoreEPSS 1.9% · 77th percentile
  5. 2026-08-05 19:11 UTCEPSS rescoreEPSS 1.9% · 77th percentile
  6. 2026-08-04 15:03 UTCEPSS rescoreEPSS 1.9% · 77th percentile
  7. 2026-08-03 10:28 UTCEPSS rescoreEPSS 1.9% · 77th percentile
  8. 2026-07-30 01:25 UTCEPSS rescoreEPSS 1.9% · 77th percentile
  9. 2026-07-26 13:36 UTCEG score recomputeFirst assessed: 9.3 HIGH
  10. 2026-07-25 14:12 UTCEPSS rescoreEPSS 1.9% · 77th percentile
  11. 2026-07-24 14:12 UTCEPSS rescoreEPSS 1.9% · 77th percentile
  12. 2026-07-23 14:14 UTCEPSS rescoreEPSS 1.9% · 77th percentile
  13. 2026-07-23 00:57 UTCEG score recompute
  14. 2026-07-23 00:35 UTCEG score recompute
  15. 2026-07-23 00:02 UTCEG score recompute
  16. 2026-07-22 21:41 UTCEG score recompute
  17. 2026-07-20 17:03 UTCEPSS rescoreEPSS 1.9% · 77th percentile
  18. 2026-07-18 09:59 UTCEPSS rescoreEPSS 1.9% · 77th percentile
  19. 2026-07-16 16:58 UTCEPSS rescoreEPSS 1.9% · 77th percentile
  20. 2026-07-15 16:54 UTCEPSS rescoreEPSS 1.9% · 77th percentile
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  22. 2026-07-13 22:25 UTCEPSS rescoreEPSS 1.9% · 77th percentile
  23. 2026-07-13 06:07 UTCEPSS rescoreEPSS 1.9% · 77th percentile
  24. 2026-07-11 08:22 UTCEPSS rescoreEPSS 1.9% · 77th percentile
  25. 2026-07-09 19:04 UTCEPSS rescoreEPSS 1.9% · 77th percentile
  26. 2026-07-08 15:09 UTCEPSS rescoreEPSS 1.9% · 77th percentile
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  44. 2026-06-19 19:22 UTCEPSS rescoreEPSS 1.9% · 77th percentile
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Frequently asked(4)

What is CVE-2008-5547?
CVE-2008-5547 is a high-severity vulnerability; its CVE record was published on December 12, 2008. HAURI ViRobot 2008.12.4.1499 and possibly 2008.9.12.1375, when Internet Explorer 6 or 7 is used, allows remote attackers to bypass detection of malware in an HTML document by placing an MZ header (aka "EXE info") at the beginning, and modifying the filename to have (1) no extension, (2) a .txt…
When was CVE-2008-5547 made public?
CVE-2008-5547 was made public on December 8, 2008: that is the date its CVE record's CNA, MITRE Corporation, gives for when the vulnerability was made public. The CVE record itself was published on December 12, 2008. EchelonGraph's copy of the record carries a last-modified date of April 23, 2026; the record at its source may have been updated since.
Is CVE-2008-5547 actively exploited?
CVE-2008-5547 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.9% probability of exploitation in the next 30 days (79th percentile of EPSS-scored CVEs).
How do I remediate CVE-2008-5547?
No fix for CVE-2008-5547 has been recorded since its CVE record was published in 2008, and neither the vendor feeds EchelonGraph reads nor the CVE record's references hold the vendor's own advisory. Isolate the affected system (restrict network access to it, for example with a firewall, or keep it off the internet) or retire the product.

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