CVE-2020-36933: htc iptinstaller Unquoted Search Path or Element
CVSS: 8.5v4.0HighDeferred
Published 25-01-2026Last modified 26-01-2026
Vulnerability summary
CVE-2020-36933 is a high (CVSS 8.5) Unquoted Search Path or Element vulnerability in htc iptinstaller. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 6.4% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
8.5/10
010
High · v4.0 (CVE.org)EPSS score
0.17%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1exploit-database
Timeline
- 25-01-2026PublishedVulnerability first disclosed.
- 26-01-2026Last modifiedVulnerability information updated.
Description
HTC IPTInstaller 4.0.9 contains an unquoted service path vulnerability in the PassThru Service configuration. Attackers can exploit the unquoted binary path to inject and execute malicious code with elevated LocalSystem privileges.
CVSS metrics
4 scores · 2 sources · 2 versionsHigh 8.5Preferred score · CVE.org (CNA)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NSourcesAll 2 agree
- NVDNIST8.5HighCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
High 7.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesAll 2 agree
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.17%
Chance of exploitation in the next 30 days
Percentile
6%
Versus all other CVEs
30-day change
+0.01 pp
From 0.16% on 20-09-2026
20-09-202620-10-2026
EPSS score0.17%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundIPTInstaller 4.0.9 - 'PassThru Service' Unquoted Service Path
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Htc1 product
- iptinstaller4.0.9
1 vendor · 1 product
References
3 links- www.htc.com/latam/Product
- www.vulncheck.com/advisories/iptinstaller-passthru-service-unquoted-service-pathThird Party Advisory