CVE-2025-5025
Estado: AnalizadaMedia (4.8)—
libcurl supports *pinning* of the server certificate public key for HTTPS transfers. Due to an omission, this check is not performed when connecting with QUIC for HTTP/3, when the TLS backend is wolfSSL. Documentation says the option works with wolfSSL, failing to specify that it does not for QUIC and HTTP/3. Since pinning makes the transfer succeed if the pin is fine, users could unwittingly connect to an impostor server without noticing.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
- Puntuación base: 4.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.29%
- Percentil entre todas las CVEs puntuadas: 20
- Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- CWE-295
Referencias
JSON original (NVD)
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"id": "CVE-2025-5025",
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"role": "CISA Coordinator",
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"timestamp": "2025-05-30T16:19:34.842150Z"
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"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
"integrityImpact": "LOW",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "LOW"
},
"impactScore": 2.5,
"exploitabilityScore": 2.2
}
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},
"affected": [
{
"source": "2499f714-1537-4658-8207-48ae4bb9eae9",
"affectedData": [
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"vendor": "curl",
"product": "curl",
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"published": "2025-05-28T07:15:24.910",
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{
"url": "https://curl.se/docs/CVE-2025-5025.html",
"tags": [
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{
"url": "https://hackerone.com/reports/3153497",
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"source": "2499f714-1537-4658-8207-48ae4bb9eae9"
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{
"url": "http://www.openwall.com/lists/oss-security/2025/05/28/5",
"tags": [
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"source": "af854a3a-2127-422b-91ae-364da2661108"
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"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-295"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "libcurl supports *pinning* of the server certificate public key for HTTPS transfers. Due to an omission, this check is not performed when connecting with QUIC for HTTP/3, when the TLS backend is wolfSSL. Documentation says the option works with wolfSSL, failing to specify that it does not for QUIC and HTTP/3. Since pinning makes the transfer succeed if the pin is fine, users could unwittingly connect to an impostor server without noticing."
},
{
"lang": "es",
"value": "libcurl admite la fijación de la clave pública del certificado del servidor para transferencias HTTPS. Debido a una omisión, esta comprobación no se realiza al conectar con QUIC para HTTP/3, cuando el backend TLS es wolfSSL. La documentación indica que la opción funciona con wolfSSL, pero no especifica que no funciona para QUIC ni HTTP/3. Dado que la fijación permite que la transferencia se realice correctamente si la fijación es correcta, los usuarios podrían conectarse sin darse cuenta a un servidor falso."
}
],
"lastModified": "2026-06-17T09:47:03.120",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
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"sourceIdentifier": "2499f714-1537-4658-8207-48ae4bb9eae9"
}