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Fencer Intel
high 7.5

CVE-2012-0254 json

Stack-based buffer overflow in the HMIWeb Browser HSCDSPRenderDLL ActiveX control in Honeywell Process Solutions (HPS) Experion R2xx, R30x,…

published 2012-09-08 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-0290

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.1%
EPSS 4.1% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

Stack-based buffer overflow in the HMIWeb Browser HSCDSPRenderDLL ActiveX control in Honeywell Process Solutions (HPS) Experion R2xx, R30x, R31x, and R400.x; Honeywell Building Solutions (HBS) Enterprise Building Manager R400 and R410.1; and Honeywell Environmental Combustion and Controls (ECC) SymmetrE R410.1 allows remote attackers to execute arbitrary code via unspecified vectors.

Vendor advisories

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

cisa ICSA-12-150-01 updated cvss 7.5

Honeywell HMIWeb Browser Buffer Overflow Vulnerability

  • Honeywell Building Solutions Enterprise Building Manager R400, R410.1, R410.1 Honeywell Environmental Combustion & Controls SymmetrE_R410.1 Honeywell Process Solutions Experion R400.x, R31x, R30x, R2xx
    affected: mitigation honeywellprocess.com

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

Exploit prediction

4.08% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

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.