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CVE-2011-3494

76
FAUCET Score

CVE-2011-3494 describes a critical vulnerability in WinSig.exe within eSignal 10.6.2425 and earlier, allowing remote attackers to trigger denial of service or potentially execute arbitrary code. This is due to stack-based and heap-based buffer overflows when processing specially crafted QUO, SUM, or POR files with long StyleTemplate elements or Font->FaceName fields. With a CVSS score of 10.0, the vulnerability is easily exploitable over the network with low complexity and no authentication, leading to complete compromise of confidentiality, integrity, and availability. While not listed on the KEV catalog, exploit code, including a Metasploit module, is publicly available, indicating a high potential for exploitation despite limited community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 10.6.2425CPE matchmatch criteria
cpe:2.3:a:interactivedata:esignal:*:*:*:*:*:*:*:*
10.6CPE matchmatch criteria
cpe:2.3:a:interactivedata:esignal:10.6:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
55.78%
Probability of exploitation in next 30 days
EPSS Percentile
98.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Metasploit: eSignal and eSignal Pro File Parsing Buffer Overflow in QUO · Sep 6, 2011
ExploitDB: EDB-17880 · Sep 20, 2011
This CVE's current EPSS score of 0.5578 is in the 98th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

aluigi.altervista.org / adv/esignal_1-adv.txt
Exploit
secunia.com / advisories/45966
Vendor Advisory