7.5

CVE-2019-8277: kaspersky lab ultravnc Improper Initialization

CVSS: 7.5v3.1HighModified
Published 09-03-2019Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2019-8277 is a high (CVSS 7.5) Improper Initialization vulnerability in kaspersky lab ultravnc. EPSS estimates a 2.97% chance of exploitation in the next 30 days, higher than 87% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
2.97%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 09-03-2019
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

UltraVNC revision 1211 contains multiple memory leaks (CWE-665) in VNC server code, which allows an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This attack appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1212.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

2.97%

Chance of exploitation in the next 30 days

Percentile

87%

Versus all other CVEs

30-day change

0.00 pp

From 2.97% on 19-09-2026

19-09-202619-10-2026
EPSS score
2.97%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Siemens3 products
Kaspersky lab1 product
Uvnc1 product

3 vendors · 5 products

References

6 links