VulnerabilityModified
CVE-2018-15361
UltraVNC revision 1198 has a buffer underflow vulnerability in VNC client code, which can potentially result in code execution.
CRITICAL 9.8EPSS 2.88%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.88%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.88% probability · 86th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-124, CWE-787
- Affected
- uvnc/ultravnc
- Source
- vulnerability@kaspersky.com
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/Third Party Advisory
- 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/Third Party Advisory
- https://www.us-cert.gov/ics/advisories/icsa-20-161-06
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.