CVE-2017-11177: TRITON AP-EMAIL 8.2 before 8.2 IB does not properly restrict file access in an unspecified directory.

This month

HIGH 7.5REMOTEDOWNGRADE

CVE-2017-11177 is a high-severity flaw (CVSS 7.5) affecting triton ap email. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

TRITON AP-EMAIL 8.2 before 8.2 IB does not properly restrict file access in an unspecified directory.

Why this priority

High severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.0% (top 36%)
CISA exploited list	No
Weakness	CWE-20
Published	2017-11-06
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: websense

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

Am I affected?

Timeline

2017-11-06 17:29 UTCPublished CVE record published
2026-06-17 01:01 UTCUpdated Record last modified

websense triton ap email DOWNGRADE

Affected: 8.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.2

1. Check installed version

apt-cache policy triton-ap-email || rpm -q triton-ap-email || triton-ap-email --version

2. No fixed release: DOWNGRADE to a release before 8.2 (Debian / Ubuntu)

apt-cache madison triton-ap-email sudo apt install triton-ap-email=<VERSION_BEFORE_8.2> sudo apt-mark hold triton-ap-email

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list triton-ap-email sudo dnf downgrade triton-ap-email-<VERSION_BEFORE_8.2> sudo dnf versionlock add triton-ap-email

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2017-11177?

triton ap email: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-11177 being exploited?

CVE-2017-11177 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-2017-11177 affect?

CVE-2017-11177 affects triton ap email. Severity is high (CVSS 7.5). TRITON AP-EMAIL 8.2 before 8.2 IB does not properly restrict file access in an unspecified directory.

How urgent is CVE-2017-11177?

Priority 47/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2015-2771 MEDIUM 5.0 UPGRADE UPGRADE The Mail Server in Websense TRITON AP-EMAIL and V-Series appliances before 8.0.0 uses plaintext credentials, w
CVE-2015-2769 MEDIUM 6.8 UPGRADE Multiple cross-site request forgery (CSRF) vulnerabilities in the Personal Email Manager (PEM) in Websense TRI
CVE-2015-2768 MEDIUM 4.3 UPGRADE DOWNGRADE Cross-site scripting (XSS) vulnerability in Websense TRITON AP-EMAIL before 8.0.0 and V-Series 7.7 appliances
CVE-2015-2767 HIGH 10.0 UPGRADE Unspecified vulnerability in Websense TRITON AP-EMAIL before 8.0.0 has unknown impact and attack vectors, rela
CVE-2015-2766 MEDIUM 5.0 UPGRADE The Personal Email Manager (PEM) in Websense TRITON AP-EMAIL before 8.0.0 allows attackers to have unspecified

References

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