CVE-2024-12224

moderate-risk
Published 2025-05-30

Improper Validation of Unsafe Equivalence in punycode by the idna crate from Servo rust-url allows an attacker to create a punycode hostname that one part of a system might treat as distinct while another part of that system would treat as equivalent to another hostname.

Do I need to act?

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0.15% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (1)

Idna

Affected Vendors

Servo

References (3)

Exploit https://bugzilla.mozilla.org/show_bug.cgi?id=1887898
Third Party Advisory https://rustsec.org/advisories/RUSTSEC-2024-0421.html
Exploit https://bugzilla.mozilla.org/show_bug.cgi?id=1887898
36
/ 100
moderate-risk
Severity 30/34 · Critical
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal