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CVE

CVE-2025-11563

URLs containing percent-encoded slashes (`/` or `\`) can trick wcurl into saving the output file outside of the current

URLs containing percent-encoded slashes (/ or \) can trick wcurl into saving the output file outside of the current directory without the user explicitly asking for it. This flaw only affects the wcurl command line tool.

MEDIUM · CVSS 4.6 EPSS 0.0002
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules7 YARA rules0
⬡

Weakness Classification

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
▤

Affected Products & Versions

1
curl wcurl>= 2024-12-08 and < 2025-11-09
◈

Sigma Hunt Rules

7
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighSuspicious Download and Execute Pattern via Curl/Wget
producthighSuspicious File Download From File Sharing Domain Via Curl.EXE
producthighSuspicious File Download From IP Via Curl.EXE
producthighCurl Download And Execute Combination
producthighSuspicious Curl.EXE Download
productmediumSuspicious Curl File Upload - Linux
▣

Scoring & Timeline

4.6
MEDIUM · CVSS v3.1 · 2499f714-1537-4658-8207-48ae4bb9eae9
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD25 Feb 2026 · 08:16 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

12
msrcCVE-2025-11563
usnUSN-8062-1
suse-csafSUSE-SU-2025:21198-1
suse-csafSUSE-SU-2025:21206-1
suse-csafSUSE-SU-2025:4300-1
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://curl.se/docs/CVE-2025-11563.htmlPatchVendor Advisory
https://curl.se/docs/CVE-2025-11563.jsonVendor Advisory
http://www.openwall.com/lists/oss-security/2025/11/04/1Mailing ListThird Party Advisory
https://lists.debian.org/debian-release/2025/11/msg00504.htmlMailing ListPatchThird Party Advisory
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