CVE-2016-1505

The filesystem storage backend in Radicale before 1.1 on Windows allows remote attackers to read or write to arbitrary files via a crafted path, as demonstrated by /c:/file/ignore.

Published: 2016-02-03 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2016-1505 is rated High Risk (68.1/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.35%). High exploitation likelihood—assess exposure and prioritize remediation.

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-2016-1505

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 2026-05-13 1.38% 1.35% -0.03%
2 2026-01-01 1.35% 1.38% +0.03%
3 2025-12-25 — 1.35% —

Full EPSS history (28 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-1505

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 3.0 CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/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:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 5.8 [email protected]
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2016-1505

GitHub Security Advisory for CVE-2016-1505

GHSA-84cw-mxhv-qvv4 · Severity: critical · Ecosystem: pip — Radicale is vulnerable to directory traversal on Windows Filesystem Storage Backend component

OS Trackers for CVE-2016-1505

vendor priority summary link
debian unimportant CVE-2016-1505 unimportant priority: Debian including 1 source packages (radicale), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2016-1505
ubuntu medium CVE-2016-1505 medium priority: Ubuntu including 1 source packages (radicale), 5 status rows across 5 suites (precise, trusty, upstream, vivid, wily): not-affected 3, DNE 1, needs-triage 1. https://ubuntu.com/security/CVE-2016-1505

Affected software / configurations for CVE-2016-1505

Vendor Product Version Raw CPE
radicale radicale <= 1.0.1 cpe:2.3:a:radicale:radicale:*:*:*:*:*:*:*:*

References for CVE-2016-1505

cvelogic Threat Intelligence