How severe is CVE-2011-3503?

CVE-2011-3503 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2011-3503 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-3503?

CVE-2011-3503 affects Interactivedata Esignal. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-3503?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2011-3503 published?

CVE-2011-3503 was published on 2011-09-16 and last updated on 2026-06-16.

CVE-2011-3503

CVE-2011-3503 is a critical-severity vulnerability in Interactivedata Esignal with a CVSS 2.0 base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Interactivedata Esignal
Published: 2011-09-16
Last modified: 2026-06-16

Description

Untrusted search path vulnerability in eSignal 10.6.2425.1208, and possibly other versions, allows local users, and possibly remote attackers, to execute arbitrary code and conduct DLL hijacking attacks via a Trojan horse JRS_UT.dll that is located in the same folder as a .quo (QUOTE) file. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.

Frequently asked questions

What is CVE-2011-3503?: Untrusted search path vulnerability in eSignal 10.6.2425.1208, and possibly other versions, allows local users, and possibly remote attackers, to execute arbitrary code and conduct DLL hijacking attacks via a Trojan horse JRS_UT.dll that is located in the same folder as a .quo (QUOTE) file. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
How severe is CVE-2011-3503?: CVE-2011-3503 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2011-3503 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-3503?: CVE-2011-3503 affects Interactivedata Esignal. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-3503?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2011-3503 published?: CVE-2011-3503 was published on 2011-09-16 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:interactivedata:esignal:10.6.2425.1208:*:*:*:*:*:*:*

More vulnerabilities in Interactivedata Esignal

CVE-2011-3494 — Critical (CVSS 10.0): WinSig.exe in eSignal 10.6.2425 and earlier allows remote attackers to cause a denial of service (crash) and possibly…

All CVEs affecting Interactivedata Esignal →