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CVE-2011-4520
Heap-based buffer overflow in an ActiveX component in MICROSYS PROMOTIC before 8.1.5 allows remote attackers to cause a denial of service…
Medium4.3EPSS 2.4%
- Published
- Updated
- Reserved
- Assigned by
- certcc
Description
Heap-based buffer overflow in an ActiveX component in MICROSYS PROMOTIC before 8.1.5 allows remote attackers to cause a denial of service via a crafted web page.
Timeline
ID reserved
By certcc
- 18 months later
· 18 months later
Published
- 11 years later
· 11 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium4.3 | AV:N/AC:M/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 2.4% · top 16% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Weakness
Affected products
n/a
- affected n/a
References (2)
- http://www.promotic.eu/en/pmdoc/News.htm#ver80105 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://ics-cert.us-cert.gov/advisories/ICSA-12-024-02 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2011-4520)Record last updated .