Threat intelligence · CVE-2025-59330
error-ex allows error subclassing and stack customization.
Published Sep 15, 2025 · catalog updated Sep 15, 2025 · Qix-
Last checked Oct 29, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2025-59330. EPSS is 0.43%. Act only if a listed version of Qix- is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- High8.8
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.43%
- Remediation
- Advisory link
- Affected products
- vendor Qix- node-error-ex = 1.3.3
error-ex allows error subclassing and stack customization. On 8 September 2025, an npm publishing account for error-ex was taken over after a phishing attack. Version 1.3.3 was published, functionally identical to the previous patch version, but with a malware payload added attempting to redirect cryptocurrency transactions to the attacker's own addresses from within browser environments. Local environments, server environments, command line applications, etc. are not affected. If the package was used in a browser context (e.g. a direct inclusion, or via a bundling tool such as Babel, Rollup,
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor Qix- node-error-ex = 1.3.3= 1.3.3
How to fix CVE-2025-59330
No stored fix
No vendor fix text is stored. Use the linked advisory before you change production.
Version check
Seen in = 1.3.3
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2025-59330. EPSS is 0.43%. Act only if a listed version of Qix- is installed.
Which versions are affected?
Compare what you have installed with Qix- node-error-ex = 1.3.3 = 1.3.3. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.43%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Sep 15, 2025 · EUVD
Detected
error-ex allows error subclassing and stack customization. On 8 September 2025, an npm publishing account for error-ex was taken over after a phishing attack. Version 1.3.3 was published, functionally identical to the previous patch version, but with a malware payload added attempting to redirect cryptocurrency transactions to the attacker's own addresses from within browser environments. Local en
Sep 15, 2025 · EUVD
Updated
error-ex allows error subclassing and stack customization. On 8 September 2025, an npm publishing account for error-ex was taken over after a phishing attack. Version 1.3.3 was published, functionally identical to the previous patch version, but with a malware payload added attempting to redirect cryptocurrency transactions to the attacker's own addresses from within browser environments. Local en
Sources
- CVE.orgVulnerability recordCVE-2025-59330
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2025-59330
30-day exploitation probability 0.43%
first.org - EUVDVulnerability recordEUVD-2025-29240
error-ex allows error subclassing and stack customization. On 8 September 2025, an npm publishing account for error-ex was taken over after a phishing attack. Version 1.3.3 was published, functionally identical to the previous patch version, but with a malware payload added attem
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSOct 29, 2026
- CVE.orgOct 22, 2026
- EUVDOct 22, 2026