Multiple stack-based buffer overflows in the DH_OneSecondTick function in Cogent DataHub 7.1.1.63 and earlier allow remote attackers to cau…

published 2011-09-16 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-3456

cvss: 10.0; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 8.0%; EPSS 8.0% chance of exploitation in 30 days, percentile 94%
public exploits: 2; Exploit-DB

Multiple stack-based buffer overflows in the DH_OneSecondTick function in Cogent DataHub 7.1.1.63 and earlier allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via long (1) domain, (2) report_domain, (3) register_datahub, or (4) slave commands.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-11-280-01 updated 2025-06-09 cvss 10.0

Cogent DataHub Vulnerabilities

Cogent Real-Time Systems Cascade DataHub 6_6.4.20. Cogent Real-Time Systems Cogent DataHub 7_until_7.1.2 Cogent Real-Time Systems OPC DataHub <6.4.20
affected: mitigation

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Timeline

2011-09-14 First public exploit (EDB-17838)
2011-09-16 Published

Exploit prediction

7.99% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

EDB-17884 Cogent Datahub 7.1.1.63 - Remote Unicode Buffer Overflow remote, 2011-09-22
EDB-17838 Cogent DataHub 7.1.1.63 - Stack Overflow dos, 2011-09-14
aluigi.altervista.org http://aluigi.altervista.org/adv/cogent_1-adv.txt referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	2.0	10.0	AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness

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

References

aluigi.altervista.org /adv/cogent_1-adv.txt
exploit
us-cert.gov /control_systems/pdf/ICS-ALERT-11-256-03.pdf
us-government-resource

Sources

CVE List CVE-2011-3493
NVD CVE-2011-3493

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary