CVE-2018-15361
9.8
CRITICAL · CVSS 3.0 · EPSS 2.9% (pctl 86)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
UltraVNC revision 1198 has a buffer underflow vulnerability in VNC client code, which can potentially result in code execution. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1199.
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 2.88% — more likely to be exploited than 86% of all CVEs |
| Weakness | CWE-124 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2019-03-05 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| uvnc | ultravnc |
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf
- https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-003-ultravnc-buffer-underwrite/
- https://www.us-cert.gov/ics/advisories/icsa-20-161-06
- https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf
- https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-003-ultravnc-buffer-underwrite/
- https://www.us-cert.gov/ics/advisories/icsa-20-161-06
→ the Explorer · watch your stack · NVD