CVE-2009-1185

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 80.4% 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
Weaponized
7.2EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High exploitation likelihood — EPSS 80%
  • Public exploit code is available (Metasploit, Exploit-DB, marked verified by Exploit-DB)
CISA-KEV: Not listedEPSS PROB: 80%CVSS v2: 7.2Exploit: Metasploit · Exploit-DB (verified)Exposed services: Not assessed

A fix is available — apply it.

udev before 1.4.1 does not verify whether a NETLINK message originates from kernel space, which allows local users to gain privileges by sending a NETLINK message from user space.

CVSS v2.0 (legacy)
7.2HIGHNVD never assigned a CVSS v3 rating to this CVE
EG Score
7.2HIGHlow confidence
EG Risk
69
EG Risk 69/100

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)
Severity72% × 45%
The EG Score, 7.2 of 10.
Exploitation80% × 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, Track or Track* at medium and Track* or Attend at high mission impact.
Exploitation public PoC (EG-KEV: weaponized) · 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: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
80%
EPSS %ILE
99th
KEV
Not listed

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

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (EG-KEV: weaponized) · 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

April 17, 2009

Last Modified

April 23, 2026

References (39)

15 of 39 shown · show the other 24

Patch Availability(2)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntuudev (124-9ubuntu0.2) @ intrepid2026-05-30ubuntu
redhatudev-0:095-14.20.el5_32009-04-16redhat

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

(2 across 2 ecosystems)
Debian:4.0(1)
PackageVulnerable rangeFix by version rangeDependents
udev0.105-4
  • every version up to 0.105-4etch1: fixed in 0.105-4etch1
—
Debian:5.0(1)
PackageVulnerable rangeFix by version rangeDependents
udev0.125-7
  • every version up to 0.125-7+lenny1: fixed in 0.125-7+lenny1
—

Weakness Classification(2)

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

All Vendor Advisories

(2)

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 3× in last 7d / 8× 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. 15 repeat rows among the latest 69 are merged into the row they repeat.

  1. 2026-10-09 20:00 UTCEPSS rescoreEPSS 80% · 99th percentile
  2. 2026-10-07 23:37 UTCEPSS rescoreEPSS 80% · 99th percentile
  3. 2026-10-05 17:37 UTCEPSS rescoreEPSS 80% · 99th percentile
  4. 2026-09-30 14:58 UTCEPSS rescoreEPSS 80% · 99th percentile
  5. 2026-09-29 07:57 UTCEG score recompute
  6. 2026-09-26 15:52 UTCEPSS rescoreEPSS 80% · 99th percentile
  7. 2026-09-24 13:57 UTCEPSS rescoreEPSS 82% · 99th percentile
  8. 2026-09-12 14:54 UTCEPSS rescoreEPSS 82% · 99th percentile
  9. 2026-09-10 09:24 UTCEPSS rescoreEPSS 82% · 99th percentile
  10. 2026-09-06 13:41 UTCEPSS rescoreEPSS 82% · 99th percentile
  11. 2026-09-05 15:22 UTCEPSS rescoreEPSS 82% · 99th percentile
  12. 2026-08-28 21:34 UTCEPSS rescoreEPSS 82% · 99th percentile
  13. 2026-08-19 16:58 UTCEPSS rescoreEPSS 82% · 99th percentile
  14. 2026-08-15 01:24 UTCEPSS rescoreEPSS 82% · 99th percentile
  15. 2026-08-09 13:41 UTCEPSS rescoreEPSS 82% · 99th percentile
  16. 2026-07-26 13:38 UTCEG score recompute▲ 7.20
  17. 2026-07-24 14:12 UTCEPSS rescoreEPSS 82% · 99th percentile
  18. 2026-07-23 14:14 UTCEPSS rescoreEPSS 82% · 99th percentile
  19. 2026-07-23 00:58 UTCEG score recompute
  20. 2026-07-23 00:36 UTCEG score recompute▼ 8.40
  21. 2026-07-23 00:03 UTCEG score recompute▲ 8.40
  22. 2026-07-22 21:42 UTCEG score recompute▼ 9.00
  23. 2026-07-22 14:03 UTCEPSS rescoreEPSS 82% · 99th percentile
  24. 2026-07-21 15:20 UTCEPSS rescoreEPSS 82% · 99th percentile
  25. 2026-07-20 17:03 UTCEPSS rescoreEPSS 82% · 99th percentile
Show 29 more
  1. 2026-07-15 16:54 UTCEPSS rescoreEPSS 82% · 99th percentile
  2. 2026-07-15 01:55 UTCEPSS rescoreEPSS 82% · 99th percentile
  3. 2026-07-09 19:04 UTCEPSS rescoreEPSS 82% · 99th percentile
  4. 2026-07-05 02:26 UTCEPSS rescoreEPSS 82% · 99th percentile
  5. 2026-07-01 15:02 UTCEPSS rescoreEPSS 82% · 99th percentile
  6. 2026-06-30 23:19 UTCEPSS rescoreEPSS 82% · 99th percentile
  7. 2026-06-28 14:03 UTCEPSS rescoreEPSS 82% · 99th percentile
  8. 2026-06-27 03:05 UTCEPSS rescoreEPSS 82% · 99th percentile
  9. 2026-06-25 13:46 UTCEPSS rescoreEPSS 82% · 99th percentile
  10. 2026-06-23 21:29 UTCEPSS rescoreEPSS 82% · 99th percentile
  11. 2026-06-21 01:56 UTCEPSS rescoreEPSS 82% · 99th percentile
  12. 2026-06-17 17:49 UTCEPSS rescoreEPSS 82% · 99th percentile
  13. 2026-06-15 17:44 UTCEPSS rescoreEPSS 82% · 99th percentile
  14. 2026-06-14 23:14 UTCEPSS rescoreEPSS 89% · 99th percentile
  15. 2026-06-13 22:57 UTCEPSS rescoreEPSS 89% · 99th percentile
  16. 2026-06-10 22:14 UTCEPSS rescoreEPSS 90% · 99th percentile
  17. 2026-06-10 13:17 UTCEPSS rescoreEPSS 90% · 99th percentile
  18. 2026-06-08 14:13 UTCEPSS rescoreEPSS 90% · 99th percentile
  19. 2026-06-05 22:44 UTCEPSS rescoreEPSS 90% · 99th percentile
  20. 2026-06-05 06:07 UTCEPSS rescoreEPSS 90% · 99th percentile
  21. 2026-06-04 13:09 UTCEPSS rescoreEPSS 90% · 99th percentile
  22. 2026-06-01 13:49 UTCEPSS rescoreEPSS 90% · 99th percentile
  23. 2026-05-31 00:13 UTCEPSS rescoreEPSS 90% · 99th percentile
  24. 2026-05-30 17:10 UTCEG score recompute
  25. 2026-05-30 17:10 UTCVendor advisory
  26. 2026-05-30 17:10 UTCGHSA enrichmentGHSA-3cx7-86h6-xwmp · GitHub severity HIGH
  27. 2026-05-28 13:42 UTCEPSS rescoreEPSS 90% · 99th percentile
  28. 2026-05-22 21:15 UTCEPSS rescoreEPSS 90% · 99th percentile
  29. 2026-05-18 21:29 UTCEPSS rescoreEPSS 90% · 99th percentile

Publicly available exploits

(4 references)

Public exploit code is referenced for this CVE (1 Metasploit module, 3 Exploit-DB entries). Defenders should treat patch urgency accordingly.

  • Exploit-DBEDB-21848✓ verified
    Published Oct 10, 2012

    Linux Kernel UDEV < 1.4.1 - 'Netlink' Local Privilege Escalation (Metasploit)

    Open source ↗
  • Metasploitexploit/linux/local/udev_netlink✓ verified
    Published Sep 13, 2012

    Linux udev Netlink Local Privilege Escalation

    Open source ↗
  • Exploit-DBEDB-8572✓ verified
    Published Apr 30, 2009

    Linux Kernel 2.6 (Gentoo / Ubuntu 8.10/9.04) UDEV < 1.4.1 - Local Privilege Escalation (2)

    Open source ↗
  • Exploit-DBEDB-8478✓ verified
    Published Apr 20, 2009

    Linux Kernel 2.6 (Debian 4.0 / Ubuntu / Gentoo) UDEV < 1.4.1 - Local Privilege Escalation (1)

    Open source ↗

Related CVEs(same product + same vendor + same CWE)

Same product

1 shown

Debian:4.0:udev

Same vendor

1 shown

ubuntu:USN-758-1

Frequently asked(4)

What is CVE-2009-1185?
CVE-2009-1185 is a high-severity vulnerability; its CVE record was published on April 17, 2009. udev before 1.4.1 does not verify whether a NETLINK message originates from kernel space, which allows local users to gain privileges by sending a NETLINK message from user space.
When was CVE-2009-1185 made public?
CVE-2009-1185 was made public on April 16, 2009: that is the date its CVE record's CNA, Red Hat, Inc., gives for when the vulnerability was made public. The CVE record itself was published on April 17, 2009. 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-2009-1185 actively exploited?
CVE-2009-1185 is not currently on CISA's Known Exploited Vulnerabilities catalog. EchelonGraph's EG-KEV model places it in Tier 2 (Weaponized), which is not evidence of exploitation: a Metasploit module exists for it, and Exploit-DB marks a public exploit for it as verified. EchelonGraph does not test whether exploit code works. FIRST EPSS estimates a 80% probability of exploitation in the next 30 days (99th percentile of EPSS-scored CVEs).
How do I remediate CVE-2009-1185?
A fix for CVE-2009-1185 is available: update to the fixed version the vendor names in its advisory.

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