Vulnerability Details : CVE-2019-8272
UltraVNC revision 1211 has multiple off-by-one vulnerabilities in VNC server code, which can potentially result in code execution. This attack appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1212.
Products affected by CVE-2019-8272
- cpe:2.3:a:siemens:sinumerik_access_mymachine\/p2p:*:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:sinumerik_pcu_base_win10_software\/ipc:*:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:sinumerik_pcu_base_win7_software\/ipc:*:*:*:*:*:*:*:*
- cpe:2.3:a:uvnc:ultravnc:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-8272
1.49%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 79 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-8272
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2019-8272
-
A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.Assigned by:
- nvd@nist.gov (Primary)
- vulnerability@kaspersky.com (Secondary)
References for CVE-2019-8272
-
https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf
Third Party Advisory
-
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-019-ultravnc-off-by-one-error/
KLCERT-19-019: UltraVNC Off-by-one Error | Kaspersky Lab ICS CERTThird Party Advisory
-
https://www.us-cert.gov/ics/advisories/icsa-20-161-06
Siemens SINUMERIK | CISAThird Party Advisory;US Government Resource
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