CVE-2011-5127: Directory traversal vulnerability in Blue Coat Reporter 9.x before 9.2.4.13, 9.2.5.x before 9.2.5.1, and 9.3 b

This week

HIGH 10.0DOWNGRADE

CVE-2011-5127 is a high-severity flaw (CVSS 10.0) affecting reporter. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in Blue Coat Reporter 9.x before 9.2.4.13, 9.2.5.x before 9.2.5.1, and 9.3 before 9.3.1.2 on Windows allows remote attackers to read arbitrary files, and consequently execute arbitrary code, via an unspecified HTTP request.

Why this priority

Critical severity
EPSS top 4%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	13.2% (top 4%)
CISA exploited list	No
Weakness	CWE-22
Published	2012-08-26
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: bluecoat

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2012-08-26 19:55 UTCPublished CVE record published
2026-06-16 23:35 UTCUpdated Record last modified

bluecoat reporter DOWNGRADE

Affected: 9.2.4.1 · 9.2.4.12 · 9.2.5 · 9.3.1.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 9.2.4.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 9.2.4.1 (Debian / Ubuntu)

apt-cache madison reporter sudo apt install reporter=<VERSION_BEFORE_9.2.4.1> sudo apt-mark hold reporter

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

dnf --showduplicates list reporter sudo dnf downgrade reporter-<VERSION_BEFORE_9.2.4.1> sudo dnf versionlock add reporter

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Blue Coat Reporter - Directory Traversal

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-2011-5127?

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

Is CVE-2011-5127 being exploited?

CVE-2011-5127 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-2011-5127 affect?

CVE-2011-5127 affects reporter. Severity is high (CVSS 10.0). Directory traversal vulnerability in Blue Coat Reporter 9.x before 9.2.4.13, 9.2.5.x before 9.2.5.1, and 9.3 before 9.3.1.2 on Windows allows remote attackers to read arbitrary files, and consequently execute arbitrary code, via an unspecif

How urgent is CVE-2011-5127?

Priority 64/100. Critical severity; EPSS top 4%: very likely to be exploited; Public exploit reference

Software pages

Windows vulnerabilities

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References

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