Is CVE-2025-59342 in the CISA KEV catalog?

No. CVE-2025-59342 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the EPSS score for CVE-2025-59342?

CVE-2025-59342 has an EPSS score of 2.83% (85th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2025-59342?

No published fix for CVE-2025-59342 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2025-59342

UNSCOREDEPSS 85th pctl

NVD

Description

esm.sh is a nobuild content delivery network(CDN) for modern web development. In 136 and earlier, a path-traversal flaw in the handling of the X-Zone-Id HTTP header allows an attacker to cause the application to write files outside the intended storage location. The header value is used to build a filesystem path but is not properly canonicalized or restricted to the application’s storage base directory. As a result, supplying ../ sequences in X-Zone-Id causes files to be written to arbitrary directories. Version 136.1 contains a patch.

CWE-24

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3.1 Vector

No CVSS vector data available.

Exploit Intelligence

2.83%probability of exploitation in 30 days

85thpercentile

Elevated risk: more likely to be exploited than 85% of all known CVEs.

References

Other references4

Related Vulnerabilities

Other CWE-24 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-38129	Critical	9.8	18%	-	-
CVE-2026-39813	Critical	9.8	17%	-	Fix
CVE-2025-60344	High	8.6	10%	-	-
CVE-2021-33036	High	8.8	3.6%	-	Fix
CVE-2023-1800	High	7.3	3.5%	-	-
CVE-2024-6746	Medium	4.3	3.3%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-01-14.