Which products and versions are affected by CVE-2011-3494?

Affected: Esignal (Interactivedata) versions 10.6. The full list is in the CVE brief.

Is CVE-2011-3494 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2011-3494 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2011-3494?

Public exploit code is available.

Is there a fix for CVE-2011-3494?

Fixed versions are available, including Esignal 10.6.2425.

How urgently should CVE-2011-3494 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2011-3494

CriticalPublic exploit

Published Sep 16, 2011 · Updated Apr 28, 2026

Key Facts

Patch immediately

CVE-2011-3494 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Esignal (Interactivedata).
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 56% probability of exploitation in the next 30 days.
Fixed versions are available, including Esignal 10.6.2425.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v2

10.0

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

EPSS (30-day exploit likelihood)

56%

Higher than 99.0% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2011-3494 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

WinSig.exe in eSignal 10.6.2425 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via (1) a long StyleTemplate element in a QUO, SUM or POR file, which triggers a stack-based buffer overflow, or (2) a long Font->FaceName field (aka FaceName element), which triggers a heap-based buffer overflow. NOTE: some of these details are obtained from third party information.

Affected Products

2 affected entries in total

Product	Affected versions	Fixed in
EsignalInteractivedata	10.6	10.6.2425

Patched Releases

Esignal

10.6.2425

Timeline

Publicly disclosed
Sep 16, 2011
Last updated
Apr 28, 2026

Weakness Type

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

advisory45966
exploithttp://aluigi.altervista.org/adv/esignal_1-adv.txt
exploitMSF esignal_styletemplate_bof.rb
exploitExploitDB-17837
exploitExploitDB-17880

FAQ

Common Questions.

WinSig.exe in eSignal 10.6.2425 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via (1) a long StyleTemplate element in a QUO, SUM or POR file, which triggers a stack-based buffer overflow, or (2) a long Font->FaceName field (aka FaceName element), which tri…
Affected: Esignal (Interactivedata) versions 10.6. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Esignal 10.6.2425.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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