No exploitation reportedFix available

CVE-2019-0542

Q: Is CVE-2019-0542 actively exploited?

Active exploitation of CVE-2019-0542 has not been confirmed. Its EPSS score was 3.2% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2019-0542?

CVE-2019-0542 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2019-01-09
Fixed in3.11.104 · 3.10.163 · 3.9.99
WeaknessCWE-94

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A remote code execution vulnerability exists in Xterm.js when the component mishandles special characters, aka "Xterm Remote Code Execution Vulnerability." This affects xterm.js.

Timeline

dates in UTC

2019-01-0915:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-0542?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-0542?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV

Redhat openshift container platform

Branch	Affected	Fixed in	Source
3.11	> 3.11, < 3.11.104	3.11.104	NVD
3.10	≥ 3.10, < 3.10.163	3.10.163	NVD
3.9	≥ 3.9, < 3.9.99	3.9.99	NVD

xterm

Branch	Affected	Fixed in	Source
3.10	≥ 3.10.0, < 3.10.1	3.10.1	OSV
3.9	≥ 3.9.0, < 3.9.2	3.9.2	OSV
3.8	< 3.8.1	3.8.1	OSV

Xtermjs xterm.js

Branch	Affected	Fixed in	Source
5.0	< 5.0.0	5.0.0	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Redhat openshift container platform to 3.11.104 · 3.10.163 · 3.9.99

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.18.8read 2026-10-23
NVDCVSS 2.06.8read 2026-10-23
NVDweakness (CWE)CWE-94read 2026-10-23
FIRST EPSSEPSS score3.2 %2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2019-01-09
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2019-0542?

A remote code execution vulnerability exists in Xterm.js when the component mishandles special characters, aka "Xterm Remote Code Execution Vulnerability." This affects xterm.js.

Is CVE-2019-0542 actively exploited?

Active exploitation of CVE-2019-0542 has not been confirmed. Its EPSS score was 3.2% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-0542?

CVE-2019-0542 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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