CVE-2004-1778

MEDIUMCVSS v2 · 4.64.6—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 4.6 — 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:L/AC:L/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 0.4% 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_v2
4.6EG
EchelonGraph verdictMonitorRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS v2: 4.6Exploit: None knownExposed services: Not assessed

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

Skype 0.92.0.12 and 1.0.0.1 for Linux, and possibly other versions, creates the /usr/share/skype/lang directory with world-writable permissions, which allows local users to modify language files and possibly conduct social engineering or other attacks.

CVSS v2.0 (legacy)
4.6MEDIUMNVD never assigned a CVSS v3 rating to this CVE
EG Score
4.6MEDIUMlow confidence
EG Risk
25
EG Risk 25/100

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)
Severity46% × 45%
The EG Score, 4.6 of 10.
Exploitation0% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability30% × 15%
EchelonGraph's default: CISA has 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 is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.4%
EPSS %ILE
30th
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 is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

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 22, 2004

Last Modified

June 16, 2026

References (4)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 10× 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.

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. 20 repeat rows among the latest 89 are merged into the row they repeat.

  1. 2026-10-10 19:53 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  2. 2026-10-09 19:58 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  3. 2026-10-08 16:28 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  4. 2026-10-07 23:35 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  5. 2026-10-06 15:08 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  6. 2026-10-05 17:36 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  7. 2026-10-04 23:15 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  8. 2026-10-03 14:19 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  9. 2026-09-29 02:41 UTCEG score recompute
  10. 2026-09-12 14:54 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  11. 2026-09-10 09:23 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  12. 2026-08-30 01:13 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  13. 2026-07-26 13:24 UTCEG score recompute▲ 4.60
  14. 2026-07-25 14:11 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  15. 2026-07-24 14:11 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  16. 2026-07-23 00:46 UTCEG score recompute
  17. 2026-07-23 00:27 UTCEG score recompute
  18. 2026-07-22 23:50 UTCEG score recompute
  19. 2026-07-22 21:31 UTCEG score recompute
  20. 2026-07-20 17:02 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  21. 2026-07-18 09:59 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  22. 2026-07-16 16:58 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  23. 2026-07-15 01:55 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  24. 2026-07-13 06:07 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  25. 2026-07-11 08:22 UTCEPSS rescoreEPSS 0.4% · 30th percentile
Show 44 more
  1. 2026-07-08 15:09 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  2. 2026-07-06 02:19 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  3. 2026-07-04 06:26 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  4. 2026-07-02 14:00 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  5. 2026-06-28 14:02 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  6. 2026-06-28 04:52 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  7. 2026-06-27 03:04 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  8. 2026-06-23 21:29 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  9. 2026-06-22 14:22 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  10. 2026-06-21 14:52 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  11. 2026-06-21 01:56 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  12. 2026-06-19 19:22 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  13. 2026-06-18 17:49 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  14. 2026-06-17 17:49 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  15. 2026-06-16 17:49 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  16. 2026-06-15 17:43 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  17. 2026-06-14 23:13 UTCEPSS rescoreEPSS <0.1% · 19th percentile
  18. 2026-06-13 22:56 UTCEPSS rescoreEPSS <0.1% · 19th percentile
  19. 2026-06-12 23:08 UTCEPSS rescoreEPSS <0.1% · 19th percentile
  20. 2026-06-11 13:55 UTCEPSS rescoreEPSS <0.1% · 19th percentile
  21. 2026-06-10 22:13 UTCEPSS rescoreEPSS <0.1% · 19th percentile
  22. 2026-06-10 13:17 UTCEPSS rescoreEPSS <0.1% · 19th percentile
  23. 2026-06-08 14:13 UTCEPSS rescoreEPSS <0.1% · 19th percentile
  24. 2026-06-07 15:21 UTCEPSS rescoreEPSS <0.1% · 19th percentile
  25. 2026-06-06 13:44 UTCEPSS rescoreEPSS <0.1% · 19th percentile
  26. 2026-06-05 22:43 UTCEPSS rescoreEPSS <0.1% · 19th percentile
  27. 2026-06-05 06:07 UTCEPSS rescoreEPSS <0.1% · 19th percentile
  28. 2026-06-04 13:09 UTCEPSS rescoreEPSS <0.1% · 19th percentile
  29. 2026-06-02 20:10 UTCEPSS rescoreEPSS <0.1% · 19th percentile
  30. 2026-06-01 13:49 UTCEPSS rescoreEPSS <0.1% · 19th percentile
  31. 2026-05-31 22:28 UTCEPSS rescoreEPSS <0.1% · 19th percentile
  32. 2026-05-31 15:35 UTCEG score recompute
  33. 2026-05-31 15:35 UTCGHSA enrichmentGHSA-hp82-x9x6-qxqp
  34. 2026-05-31 00:13 UTCEPSS rescoreEPSS <0.1% · 19th percentile
  35. 2026-05-29 13:40 UTCEPSS rescoreEPSS <0.1% · 19th percentile
  36. 2026-05-28 13:42 UTCEPSS rescoreEPSS <0.1% · 19th percentile
  37. 2026-05-27 13:37 UTCEPSS rescoreEPSS <0.1% · 18th percentile
  38. 2026-05-26 13:41 UTCEPSS rescoreEPSS <0.1% · 18th percentile
  39. 2026-05-26 07:16 UTCEPSS rescoreEPSS <0.1% · 18th percentile
  40. 2026-05-24 16:42 UTCEPSS rescoreEPSS <0.1% · 18th percentile
  41. 2026-05-22 21:15 UTCEPSS rescoreEPSS <0.1% · 18th percentile
  42. 2026-05-20 22:36 UTCEPSS rescoreEPSS <0.1% · 18th percentile
  43. 2026-05-20 11:20 UTCEPSS rescoreEPSS <0.1% · 18th percentile
  44. 2026-05-18 21:29 UTCEPSS rescoreEPSS <0.1% · 18th percentile

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2004-1778?
CVE-2004-1778 is a medium vulnerability published on December 22, 2004. Skype 0.92.0.12 and 1.0.0.1 for Linux, and possibly other versions, creates the /usr/share/skype/lang directory with world-writable permissions, which allows local users to modify language files and possibly conduct social engineering or other attacks.
When was the CVE record for CVE-2004-1778 published?
The CVE record for CVE-2004-1778 was published on December 22, 2004. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of June 16, 2026; the record at its source may have been updated since.
Is CVE-2004-1778 actively exploited?
CVE-2004-1778 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (30th percentile of EPSS-scored CVEs).
How do I remediate CVE-2004-1778?
No fix for CVE-2004-1778 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2004-1778

Explore →

Is Your Infrastructure Affected by CVE-2004-1778?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs