CVE-2015-8747: The multifilesystem storage backend in Radicale before 1.1 allows remote attackers to read or write to arbitra

Q: How do I fix CVE-2015-8747?

radicale: upgrade to newer than 1.0.1. Exact commands for each OS are on this page.

Q: Is CVE-2015-8747 being exploited?

CVE-2015-8747 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2015-8747 affect?

CVE-2015-8747 affects radicale. Severity is critical (CVSS 10.0). The multifilesystem storage backend in Radicale before 1.1 allows remote attackers to read or write to arbitrary files via a crafted component name.

Q: How urgent is CVE-2015-8747?

Priority 67/100. Critical severity; Remotely exploitable, no login, no user action; On your watchlist

This week

CRITICAL 10.0REMOTEWATCHLISTUPGRADE

CVE-2015-8747 is a critical-severity flaw (CVSS 10.0) affecting radicale. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The multifilesystem storage backend in Radicale before 1.1 allows remote attackers to read or write to arbitrary files via a crafted component name.

Why this priority

Critical severity
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	10.0 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	3.0% (top 13%)
CISA exploited list	No
Weakness	CWE-20
Published	2016-02-03
Last modified	2026-06-17

Publisher (CNA): Debian GNU/Linux · Vendor: radicale

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2016-02-03 18:59 UTCPublished CVE record published
2026-06-17 00:35 UTCUpdated Record last modified

radicale radicale UPGRADE

Affected: <= 1.0.1

Fixed in: newer than 1.0.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy radicale || rpm -q radicale || radicale --version

2. UPGRADE to newer than 1.0.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade radicale

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade radicale

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2015-8747?

radicale: upgrade to newer than 1.0.1. Exact commands for each OS are on this page.

Is CVE-2015-8747 being exploited?

CVE-2015-8747 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2015-8747 affect?

CVE-2015-8747 affects radicale. Severity is critical (CVSS 10.0). The multifilesystem storage backend in Radicale before 1.1 allows remote attackers to read or write to arbitrary files via a crafted component name.

How urgent is CVE-2015-8747?

Priority 67/100. Critical severity; Remotely exploitable, no login, no user action; On your watchlist

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References

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