CVE-2009-0935

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2022-05-02. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

The inotify_read function in the Linux kernel 2.6.27 to 2.6.27.13, 2.6.28 to 2.6.28.2, and 2.6.29-rc3 allows local users to cause a denial of service (OOPS) via a read with an invalid address to an inotify instance, which causes the device's event list mutex to be unlocked twice and prevents proper synchronization of a data structure for the inotify instance.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100CISA SSVC

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
Severity55% × 45%
Exploitation0% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
0.3%
EPSS %ILE
17th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

March 18, 2009

Last Modified

April 23, 2026

Advisory Details (7)

Auto-updated May 30, 2026
Fix referenced — no release confirmed yet. Sources: redhat.
generic

'[patch 03/43] inotify: clean up inotify_read and fix locking' - MARC

http://marc.info/?l=linux-kernel&m=123337123501681&w=2
generic

IBM X-Force Exchange

https://exchange.xforce.ibmcloud.com/vulnerabilities/49331
redhat

488935 – (CVE-2009-0935) CVE-2009-0935 kernel: inotify local DoS

https://bugzilla.redhat.com/show_bug.cgi?id=488935
generic
http://www.securityfocus.com/bid/33624
generic

oss-security - Re: CVE request: kernel: inotify local DoS

http://www.openwall.com/lists/oss-security/2009/03/19/2
generic

oss-security - Re: CVE request: kernel: inotify local DoS

http://www.openwall.com/lists/oss-security/2009/03/18/5
generic

oss-security - CVE request: kernel: inotify local DoS

http://www.openwall.com/lists/oss-security/2009/03/06/2

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 15× 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 131 total refreshes for this CVE.

  1. 2026-10-09 20:00 UTCEPSS rescore
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  8. 2026-09-29 07:57 UTCEG score recompute
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  1. 2026-08-08 16:31 UTCEPSS rescore
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  9. 2026-07-23 00:58 UTCEG score recompute
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  74. 2026-06-05 22:44 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2009-0935?
CVE-2009-0935 is a medium vulnerability published on March 18, 2009. The inotify_read function in the Linux kernel 2.6.27 to 2.6.27.13, 2.6.28 to 2.6.28.2, and 2.6.29-rc3 allows local users to cause a denial of service (OOPS) via a read with an invalid address to an inotify instance, which causes the device's event list mutex to be unlocked twice and prevents proper…
When was CVE-2009-0935 disclosed?
CVE-2009-0935 was first published on March 18, 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-2009-0935 actively exploited?
CVE-2009-0935 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (17th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2009-0935?
CVE-2009-0935 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2009-0935?
A fix for CVE-2009-0935 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

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