MEDIUM
CVE-2025-11563
Published: February 25, 2026· Updated: Feb 26, 2026
4.6
CVSS v3.1
EPSS:0.02%probability of exploitation in 30 daysPercentile:5.8th
Official Description
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.
Technical Analysis
CVE-2025-11563 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Affected Vendors & Products
curl1 product
wcurl
haxx1 product
curl
Source: NVD CPE · 2 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (4)
→
https://curl.se/docs/CVE-2025-11563.htmlPatch · Vendor Advisory
→
https://curl.se/docs/CVE-2025-11563.jsonVendor Advisory
→
http://www.openwall.com/lists/oss-security/2025/11/04/1Mailing List · Third Party Advisory
→
https://lists.debian.org/debian-release/2025/11/msg00504.htmlMailing List · Third Party Advisory · Patch
Quick Facts
CVE IDCVE-2025-11563
CVSS Score4.6 / 10
SeverityMEDIUM
CISA KEVNo
EPSS (30d)0.02%
Affected2 vendors
PublishedFeb 25, 2026
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2025-11563 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.