VulnerabilityModified
CVE-2019-8267
UltraVNC revision 1207 has out-of-bounds read vulnerability in VNC client code inside TextChat module, which results in a denial of service (DoS) condition.
HIGH 7.5EPSS 1.95%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.95%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
UltraVNC revision 1207 has out-of-bounds read vulnerability in VNC client code inside TextChat module, which results in a denial of service (DoS) condition. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1208.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.95% probability · 79th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- 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-19-014-ultravnc-out-of-bounds-read/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-19-014-ultravnc-out-of-bounds-read/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.