Actively exploited · Published Jun 9, 2016 · Assigned by icscert

CVE-2016-4523

High 7.5 Exploited

In plain English

A high-severity out-of-bounds read in VTScada (formerly VTS) from Trihedral. Attackers are actively exploiting it in the wild (listed by CISA on April 15, 2022). The chance it is exploited in the next 30 days is estimated at 31.2% (higher than 98% of all known vulnerabilities). Apply updates per vendor instructions.

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)31.2%top 1.7% of all CVEs

Exploited in the wildYesCISA KEV since Apr 15, 2022

Attack toolingNoneno public tooling known

CISA guidance

Apply updates per vendor instructions.

Federal agencies must remediate by May 6, 2022.

Official description

The WAP interface in Trihedral VTScada (formerly VTS) 8.x through 11.x before 11.2.02 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via unspecified vectors.

Affected products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

Weakness: CWE-125 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

https://ics-cert.us-cert.gov/advisories/ICSA-16-159-01 x_refsource_MISC
91077 vdb-entry, x_refsource_BID
http://www.zerodayinitiative.com/advisories/ZDI-16-405 x_refsource_MISC
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-4523 government-resource