UltraVNC UltraVNC
At a glance
- Source
- NVD
- EPSS
- EPSS 4.84 % · percentile 92 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Kaspersky
- NVD status
- Modified
Description
UltraVNC revision 1203 has multiple heap buffer overflow vulnerabilities in VNC client code inside Ultra decoder, which results in code execution. This attack appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1204.
Weaknesses (CWE)
References
- https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-008-ultravnc-heap-based-buffer-overflow/
- https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf
- https://www.us-cert.gov/ics/advisories/icsa-20-161-06
- https://cert-portal.siemens.com/productcert/pdf/ssa-940818.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-286838.pdf
- https://us-cert.cisa.gov/ics/advisories/icsa-21-131-11
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | HIGH 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2019-17660
- GCVE · GCVE-0-2019-8262
CERT-FR advisories
- CERTFR-2021-AVI-357 — Multiples vulnérabilités dans les produits Siemens · cert.ssi.gouv.fr
- CERTFR-2020-AVI-349 — Multiples vulnérabilités dans les produits Siemens · cert.ssi.gouv.fr
- CERTFR-2019-AVI-384 — Multiples vulnérabilités dans les produits Schneider Electric · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:uvnc:ultravnc:*:*:*:*:*:*:*:*< 1.2.2.3cpe:2.3:a:siemens:sinumerik_access_mymachine\/p2p:*:*:*:*:*:*:*:*< 4.8cpe:2.3:a:siemens:sinumerik_pcu_base_win10_software\/ipc:*:*:*:*:*:*:*:*< 14.00cpe:2.3:a:siemens:sinumerik_pcu_base_win7_software\/ipc:*:*:*:*:*:*:*:*≤ 12.01
Affected products
| Product | Versions |
|---|---|
| UltraVNC · UltraVNC | affected 1.2.2.3 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |