- Description
- Due to a mistake in libcurl's WebSocket code, a malicious server can send a particularly crafted packet which makes libcurl get trapped in an endless busy-loop. There is no other way for the application to escape or exit this loop other than killing the thread/process. This might be used to DoS libcurl-using application.
- Source
- 2499f714-1537-4658-8207-48ae4bb9eae9
- NVD status
- Analyzed
- Products
- curl
CVSS 3.1
- Type
- Secondary
- Base score
- 7.5
- Impact score
- 3.6
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity
- HIGH
- nvd@nist.gov
- CWE-835
- Hype score
- Not currently trending
CVE-2025-5399 (CVSS:7.5, HIGH) is Awaiting Analysis. Due to a mistake in libcurl's WebSocket code, a malicious server can send a particularly crafted packet which makes libc..https://t.co/RPaztPDu5X #cybersecurityawareness #cybersecurity #CVE #infosec #hacker #nvd #mitre
@cracbot
12 Jun 2025
9 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
🚨Une faille sévère dans cURL permet de provoquer un déni de service (DoS) à distance. 🔒 Bulletin de sécurité cURL du 4 juin 2025 – Vulnérabilité critique CVE-2025-5399. https://t.co/3PWUI0IwJV
@NicolasCoolman
8 Jun 2025
25 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
⚡ CVE-2025-5399: WebSocket endless loop 👨🏻💻 z2_ ➟ curl 🟨 Low 💰 None 🔗 https://t.co/0Ma0GLQ2YP #bugbounty #bugbountytips #cybersecurity #infosec https://t.co/H1aWHxKoDx
@h1Disclosed
4 Jun 2025
869 Impressions
2 Retweets
10 Likes
3 Bookmarks
0 Replies
0 Quotes
[
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*",
"matchCriteriaId": "6456DBDE-83F3-4787-A406-C80A8D824BD5",
"versionEndExcluding": "8.14.1",
"versionStartIncluding": "8.13.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
]