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WatchlistCritical

CVE-2009-2754Legato Networker Vulnerability

Integer signedness error in the authentication functionality in librpc.dll in the Informix Storage Manager (ISM) Portmapper service (aka portmap.exe), as used in IBM Informix Dynamic Server (IDS) 10.x before 10.00.TC9 and 11.x before 11.10.TC3 and EMC Legato NetWorker, allows…

Published Mar 5, 2010 · Updated Apr 28, 2026

Key Facts

Patch immediately
  • CVE-2009-2754 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Legato Networker (Emc), Informix Dynamic Server (Ibm).
  • It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
  • EPSS estimates a 40% probability of exploitation in the next 30 days.
  • No fixed version is listed yet; check the vendor advisory for mitigations.
  • Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Scores

CVSS v2

10.0

AV:N/AC:L/Au:N/C:C/I:C/A:C

EPSS (30-day exploit likelihood)

40%

Higher than 98.6% of all scored CVEs

Exploit maturity

Proof of concept

ATLAS score

40/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Not listed

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Proof of concept

Public exploit code

1

Proof-of-concept links

In-the-wild evidence

0

Reports of active use

Advisories And Exploit References

Description

Integer signedness error in the authentication functionality in librpc.dll in the Informix Storage Manager (ISM) Portmapper service (aka portmap.exe), as used in IBM Informix Dynamic Server (IDS) 10.x before 10.00.TC9 and 11.x before 11.10.TC3 and EMC Legato NetWorker, allows remote attackers to execute arbitrary code via a crafted parameter size that triggers a stack-based buffer overflow.

Affected Products

29 affected entries in total
ProductAffected versionsFixed in
Legato NetworkerEmcSee advisoryn/a
Informix Dynamic ServerIbm10.0, 10.0.tc1, 10.0.xc1, 10.0.xc10, 10.0.xc10e, 10.0.xc2e, 10.0.xc3, 10.0.xc3en/a

Timeline

  1. Publicly disclosed

    Mar 5, 2010

  2. Last updated

    Apr 28, 2026

Weakness Type

  • CWE-189

References

6 more references in the full CVE brief

FAQ

Common Questions.

Is CVE-2009-2754 On Your Attack Surface?

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Figures as of Oct 19, 2026. Compiled by Brandefense technologies from public vulnerability catalogs; scoring as described in How it works.

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