High 7.5Published Oct 29, 2025

CVE-2025-61725Excessive CPU consumption in ParseAddress in net/mail

Updated under an hour ago (Oct 27, 2026, 1:30 PM ET)

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It affects Go standard library net/mail. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Go standard library net/mail

Exploited in the last 30 days

The ParseAddress function constructs domain-literal address components through repeated string concatenation. When parsing large domain-literal components, this can cause excessive CPU consumption.

CVSS: 7.5 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-407
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Go
NVD analysis: Deferred
Record last updated: Dec 9, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Go standard library net/mail go_standard_library:net_mail (from the name)	before 1.24.8; from 1.25.0 before 1.25.2	CNA record

References

References

https://go.dev/cl/709860
https://go.dev/issue/75680
https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bI
https://pkg.go.dev/vuln/GO-2025-4006
http://www.openwall.com/lists/oss-security/2025/10/08/1

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.