CVE-2009-1894

HIGHCVSS v2 · 7.27.2—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 7.2 — 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:L/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 0.7% 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
7.2EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • Public exploit code is available (Exploit-DB (verified), public exploit)
CISA-KEV: Not listedEPSS PROB: 1%CVSS v2: 7.2Exploit: Exploit-DB (verified) · public exploitExposed: 0

A fix is available — apply it.

Race condition in PulseAudio 0.9.9, 0.9.10, and 0.9.14 allows local users to gain privileges via vectors involving creation of a hard link, related to the application setting LD_BIND_NOW to 1, and then calling execv on the target of the /proc/self/exe symlink.

CVSS v2.0 (legacy)
7.2HIGHNVD never assigned a CVSS v3 rating to this CVE
EG Score
7.2(low)
EG Risk
63(Track)
EG Risk 63/100SSVC: 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
Severity72% × 45%
Exploitation65% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
52%
KEV
Not listed

Published

July 17, 2009

Last Modified

April 23, 2026

References (32)

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntupulseaudio (0.9.10-1ubuntu1.1) @ hardy2026-05-30ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
pulseaudio—0.9.15-4.1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
pulseaudio—0.9.15-4.1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
pulseaudio—0.9.15-4.1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
pulseaudio—0.9.15-4.1—
Debian:5.0(1)
PackageVulnerable rangeFixed inDependents
pulseaudio0.9.10-30.9.10-3+lenny1—

Weakness Classification(1)

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

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 2× in last 7d / 10× 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 116 total refreshes for this CVE.

  1. 2026-08-25 13:43 UTCEPSS rescore
  2. 2026-08-19 16:58 UTCEPSS rescore
  3. 2026-08-15 01:24 UTCEPSS rescore
  4. 2026-08-09 21:39 UTCOSV refresh
  5. 2026-08-09 13:41 UTCEPSS rescore
  6. 2026-08-08 16:31 UTCEPSS rescore
  7. 2026-08-06 13:41 UTCEPSS rescore
  8. 2026-08-03 10:28 UTCEPSS rescore
  9. 2026-07-30 16:22 UTCEPSS rescore
  10. 2026-07-30 01:26 UTCEPSS rescore
  11. 2026-07-26 13:38 UTCEG score recompute▲ 7.20
  12. 2026-07-25 14:12 UTCEPSS rescore
  13. 2026-07-24 22:11 UTCOSV refresh
  14. 2026-07-24 14:12 UTCEPSS rescore
  15. 2026-07-23 14:14 UTCEPSS rescore
  16. 2026-07-23 00:59 UTCEG score recompute
  17. 2026-07-23 00:37 UTCEG score recompute
  18. 2026-07-23 00:03 UTCEG score recompute
  19. 2026-07-22 21:42 UTCEG score recompute
  20. 2026-07-22 14:03 UTCEPSS rescore
  21. 2026-07-21 15:20 UTCEPSS rescore
  22. 2026-07-20 17:03 UTCEPSS rescore
  23. 2026-07-20 17:03 UTCEPSS rescore
  24. 2026-07-18 09:59 UTCEPSS rescore
  25. 2026-07-16 16:58 UTCEPSS rescore
Show 75 more
  1. 2026-07-15 16:54 UTCEPSS rescore
  2. 2026-07-15 16:54 UTCEPSS rescore
  3. 2026-07-15 01:55 UTCEPSS rescore
  4. 2026-07-13 22:25 UTCEPSS rescore
  5. 2026-07-13 06:07 UTCEPSS rescore
  6. 2026-07-11 08:22 UTCEPSS rescore
  7. 2026-07-11 08:22 UTCEPSS rescore
  8. 2026-07-09 19:04 UTCEPSS rescore
  9. 2026-07-08 15:10 UTCEPSS rescore
  10. 2026-07-07 17:12 UTCOSV refresh
  11. 2026-07-06 16:23 UTCEPSS rescore
  12. 2026-07-06 02:19 UTCEPSS rescore
  13. 2026-07-06 02:19 UTCEPSS rescore
  14. 2026-07-05 02:26 UTCEPSS rescore
  15. 2026-07-05 02:26 UTCEPSS rescore
  16. 2026-07-04 06:27 UTCEPSS rescore
  17. 2026-07-01 15:02 UTCEPSS rescore
  18. 2026-06-30 23:19 UTCEPSS rescore
  19. 2026-06-28 14:03 UTCEPSS rescore
  20. 2026-06-28 04:52 UTCEPSS rescore
  21. 2026-06-28 04:52 UTCEPSS rescore
  22. 2026-06-27 03:05 UTCEPSS rescore
  23. 2026-06-25 13:46 UTCEPSS rescore
  24. 2026-06-25 13:46 UTCEPSS rescore
  25. 2026-06-24 14:02 UTCEPSS rescore
  26. 2026-06-24 14:02 UTCEPSS rescore
  27. 2026-06-23 21:29 UTCEPSS rescore
  28. 2026-06-23 21:29 UTCEPSS rescore
  29. 2026-06-22 14:22 UTCEPSS rescore
  30. 2026-06-22 14:22 UTCEPSS rescore
  31. 2026-06-21 14:53 UTCEPSS rescore
  32. 2026-06-21 01:56 UTCEPSS rescore
  33. 2026-06-21 01:56 UTCEPSS rescore
  34. 2026-06-19 19:22 UTCEPSS rescore
  35. 2026-06-19 19:22 UTCEPSS rescore
  36. 2026-06-19 04:43 UTCOSV refresh
  37. 2026-06-18 17:49 UTCEPSS rescore
  38. 2026-06-18 17:49 UTCEPSS rescore
  39. 2026-06-17 17:49 UTCEPSS rescore
  40. 2026-06-17 17:49 UTCEPSS rescore
  41. 2026-06-16 17:49 UTCEPSS rescore
  42. 2026-06-16 17:49 UTCEPSS rescore
  43. 2026-06-15 17:44 UTCEPSS rescore
  44. 2026-06-14 23:14 UTCEPSS rescore
  45. 2026-06-14 23:14 UTCEPSS rescore
  46. 2026-06-13 22:57 UTCEPSS rescore
  47. 2026-06-12 23:08 UTCEPSS rescore
  48. 2026-06-12 23:08 UTCEPSS rescore
  49. 2026-06-10 22:14 UTCEPSS rescore
  50. 2026-06-10 13:17 UTCEPSS rescore
  51. 2026-06-08 14:13 UTCEPSS rescore
  52. 2026-06-07 15:22 UTCEPSS rescore
  53. 2026-06-07 15:22 UTCEPSS rescore
  54. 2026-06-06 13:44 UTCEPSS rescore
  55. 2026-06-06 13:44 UTCEPSS rescore
  56. 2026-06-06 13:44 UTCEPSS rescore
  57. 2026-06-05 22:44 UTCEPSS rescore
  58. 2026-06-05 22:44 UTCEPSS rescore
  59. 2026-06-05 06:07 UTCEPSS rescore
  60. 2026-06-04 13:09 UTCEPSS rescore
  61. 2026-06-04 13:09 UTCEPSS rescore
  62. 2026-06-02 20:10 UTCEPSS rescore
  63. 2026-06-02 20:10 UTCEPSS rescore
  64. 2026-06-01 13:49 UTCEPSS rescore
  65. 2026-06-01 13:49 UTCEPSS rescore
  66. 2026-05-31 22:28 UTCEPSS rescore
  67. 2026-05-31 22:28 UTCEPSS rescore
  68. 2026-05-31 00:13 UTCEPSS rescore
  69. 2026-05-31 00:13 UTCEPSS rescore
  70. 2026-05-30 16:06 UTCEG score recompute
  71. 2026-05-30 16:06 UTCVendor advisory
  72. 2026-05-30 16:06 UTCGHSA enrichment
  73. 2026-05-29 13:40 UTCEPSS rescore
  74. 2026-05-28 13:42 UTCEPSS rescore
  75. 2026-05-28 13:42 UTCEPSS rescore

Publicly available exploits

(2 references)

Working exploit code is in the public domain (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-9208✓ verified
    First seen Jul 20, 2009

    PulseAudio setuid (Ubuntu 9.04 / Slackware 12.2.0) - Local Privilege Escalation

    Open source ↗
  • Exploit-DBEDB-9207✓ verified
    First seen Jul 20, 2009

    PulseAudio setuid - Local Privilege Escalation

    Open source ↗

Frequently asked(4)

What is CVE-2009-1894?
CVE-2009-1894 is a high vulnerability published on July 17, 2009. Race condition in PulseAudio 0.9.9, 0.9.10, and 0.9.14 allows local users to gain privileges via vectors involving creation of a hard link, related to the application setting LDBINDNOW to 1, and then calling execv on the target of the /proc/self/exe symlink.
When was CVE-2009-1894 disclosed?
CVE-2009-1894 was first published in the National Vulnerability Database on July 17, 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-2009-1894 actively exploited?
CVE-2009-1894 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 48.3% of all scored CVEs.
How do I remediate CVE-2009-1894?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-1894, 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

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