What is CVE-2012-1977?

CVE-2012-1977 is a vulnerability in Wellintech Kingscada, classified under Missing Encryption of Sensitive Data. Published 2012-05-09.

Is CVE-2012-1977 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Wellintech Kingscada

CVE-2012-1977

WellinTech KingSCADA 3.0 uses a cleartext base64 format for storage of passwords in user.db, which allows context-dependent attackers to obtain sensitive information by reading this file.

Published 2012-05-09 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 7.1 (High). Vector: AV:N/AC:M/Au:N/C:C/I:N/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.008 (54.5th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: -0.000

Affected products

Wellintech Kingscada — versions 3.0
Wellintech Kingview — versions 3.0

Weakness classification (CWE)

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

www.cisa.gov/news-events/ics-advisories/icsa-12-129-01
af854a3a-2127-422b-91ae-364da2661108
af854a3a-2127-422b-91ae-364da2661108 (Third Party Advisory, US Government Resource)

Frequently asked questions

What is CVE-2012-1977?: CVE-2012-1977 is a vulnerability in Wellintech Kingscada, classified under Missing Encryption of Sensitive Data. Published 2012-05-09.
Is CVE-2012-1977 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.