CVE-2026-3457: thalesgroup sentinel ldk runtime Cross-site Scripting
CVSS: 7.0v4.0HighAwaiting analysis
Published 27-03-2026Last modified 03-09-2026
Vulnerability summary
CVE-2026-3457 is a high (CVSS 7.0) Cross-site Scripting vulnerability in thalesgroup sentinel ldk runtime. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 6.8% of scored vulnerabilities.
CVSS score
7.0/10
010
High · v4.0 (CVE.org)EPSS score
0.18%
0%100%
Low · +0.05 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 27-03-2026PublishedVulnerability first disclosed.
- 03-09-2026Last modifiedVulnerability information updated.
Description
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Thales Sentinel LDK Runtime on Windows allows Stored XSS. This issue affects Sentinel LDK Runtime: before 10.22.
CVSS metrics
4 scores · 2 sources · 2 versionsHigh 7.0Preferred score · CVE.org (CNA)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N/E:PSourcesAll 2 agree
- NVDNIST7.0HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N/E:P/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
Medium 6.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:NSourcesAll 2 agree
- NVDNIST6.8MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
EPSS trend
Probability
0.18%
Chance of exploitation in the next 30 days
Percentile
7%
Versus all other CVEs
30-day change
+0.05 pp
From 0.12% on 20-09-2026
20-09-202620-10-2026
EPSS score0.18%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Thalesgroup1 product
- sentinel ldk runtime< 10.22
1 vendor · 1 product
References
1 links- supportportal.thalesgroup.com/csmVendor Advisory