Out-of-bounds Read in Kaspersky Lab Ultravnc
CVE-2019-8280
UltraVNC revision 1203 has out-of-bounds access vulnerability in VNC client inside RAW decoder, which can potentially result code execution. This attack appear to be exploitable via network connectivity. This vulnerability has been fixed in revision 1204.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.042 (90.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.042 · newest: 0.042 · change: 0.000
Affected products
- Kaspersky Lab Ultravnc — versions 1.2.2.3
- Uvnc Ultravnc
Weakness classification (CWE)
Public proof-of-concept exploits
References
- ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-009-ul… (Third Party Advisory)
- cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf
- www.us-cert.gov/ics/advisories/icsa-20-161-06
- cert-portal.siemens.com/productcert/pdf/ssa-940818.pdf
- cert-portal.siemens.com/productcert/pdf/ssa-286838.pdf
- us-cert.cisa.gov/ics/advisories/icsa-21-131-11
Frequently asked questions
- What is CVE-2019-8280?
- CVE-2019-8280 is a critical-severity vulnerability in Kaspersky Lab Ultravnc, classified under CWE-788. CVSS score: 9.8/10. Published 2019-03-08.
- How severe is CVE-2019-8280?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2019-8280 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.