CVE-2016-10399: Sendio versions before 8.2.1 were affected by a Local File Inclusion vulnerability that allowed an unauthentic

Q: How do I fix CVE-2016-10399?

sendio: upgrade to newer than 8.2.0. Exact commands for each OS are on this page.

Q: Is CVE-2016-10399 being exploited?

CVE-2016-10399 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-2016-10399 affect?

CVE-2016-10399 affects sendio. Severity is high (CVSS 7.5). Sendio versions before 8.2.1 were affected by a Local File Inclusion vulnerability that allowed an unauthenticated, remote attacker to read potentially sensitive system files via a specially crafted URL.

Q: How urgent is CVE-2016-10399?

Priority 49/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2016-10399 is a high-severity flaw (CVSS 7.5) affecting sendio. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Sendio versions before 8.2.1 were affected by a Local File Inclusion vulnerability that allowed an unauthenticated, remote attacker to read potentially sensitive system files via a specially crafted URL.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-538
Published	2017-07-27
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: sendio

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

Am I affected?

Timeline

2017-07-27 18:29 UTCPublished CVE record published
2026-06-17 00:39 UTCUpdated Record last modified

sendio sendio UPGRADE

Affected: <= 8.2.0

Fixed in: newer than 8.2.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 8.2.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade sendio

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-2016-10399?

sendio: upgrade to newer than 8.2.0. Exact commands for each OS are on this page.

Is CVE-2016-10399 being exploited?

CVE-2016-10399 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-2016-10399 affect?

CVE-2016-10399 affects sendio. Severity is high (CVSS 7.5). Sendio versions before 8.2.1 were affected by a Local File Inclusion vulnerability that allowed an unauthenticated, remote attacker to read potentially sensitive system files via a specially crafted URL.

How urgent is CVE-2016-10399?

Priority 49/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2014-8391 MEDIUM 4.0 UPGRADE The Web interface in Sendio before 7.2.4 does not properly handle sessions, which allows remote authenticated
CVE-2014-0999 MEDIUM 5.0 UPGRADE Sendio before 7.2.4 includes the session identifier in URLs in emails, which allows remote attackers to obtain

References

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