CVE-2025-11563 | wcurl path traversal with percent-encoded slashes

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.

Published: 2026-02-25 Last update: 2026-02-26 Assigner: 2499f714-1537-4658-8207-48ae4bb9eae9 Source: 2499f714-1537-4658-8207-48ae4bb9eae9
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-11563 is rated Low Risk (18.6/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.01%). Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-11563

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-02-25 — 0.01% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-11563

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.6 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.1 2.5 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-11563

OS Trackers for CVE-2025-11563

vendor priority summary link
alpine — CVE-2025-11563: 1 source package rows (wcurl); 3 state rows across 1 repos (edge-community); fixed 0, open 3. https://security.alpinelinux.org/vuln/CVE-2025-11563
debian unimportant CVE-2025-11563 unimportant priority: Debian including 1 source packages (curl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2025-11563
redhat medium — https://access.redhat.com/security/cve/CVE-2025-11563
suse medium CVE-2025-11563 severity moderate: SUSE including 342 source package names (0.0.17-1.15:curl-8.14.1-150600.4.31.1, 0.0.17-1.15:libcurl4-8.14.1-150600.4.31.1, …), 934 product×package rows across 310 product lines (Container bci/spack, Container containers/lmcache-lmstack-router, … (310 product lines)): Fixed 675, Known Affected 231, Known Not Affected 22, First Fixed 6. https://www.suse.com/security/cve/CVE-2025-11563/
ubuntu medium CVE-2025-11563 medium priority: Ubuntu including 1 source packages (curl), 9 status rows across 9 suites (bionic, focal, jammy, noble, plucky, questing, trusty, upstream, xenial): not-affected 6, released 2, ignored 1. https://ubuntu.com/security/CVE-2025-11563

Affected software / configurations for CVE-2025-11563

Vendor Product Version Raw CPE
curl wcurl >= 2024-12-08, < 2025-11-09 cpe:2.3:a:curl:wcurl:*:*:*:*:*:*:*:*

References for CVE-2025-11563

cvelogic Threat Intelligence