Provisioning ServicesApplication · Citrix
CVE-2016-9677
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedCitrix Provisioning Services before 7.12 allows attackers to obtain sensitive kernel address information via unspecified vectors.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceCitrix Provisioning Services before version 7.12 contains an information disclosure vulnerability that allows attackers to obtain sensitive kernel address information. This kernel address leakage can aid in bypassing security protections like ASLR, potentially enabling more severe follow-on exploits.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
Provisioning ServicesApplication
= 7.0= 7.1= 7.6= 7.7= 7.8= 7.9= 7.11CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
-
Verify Citrix Provisioning Services is installedCheck the system for Citrix Provisioning Services by looking for the PVS service, the provisioning server component, or the PVS management console. On Windows, check Add/Remove Programs or the Windows Services list for 'Citrix Provisioning Services' or 'PVS'.Affected if The software is present on the system and the service is running.
-
Locate the installed version numberRetrieve the version of Citrix Provisioning Services. This is typically available through the PVS console (About section), Windows Programs and Features, or by querying the PVS service properties. The version format is X.Y (e.g., 7.11).Affected if A version of Citrix Provisioning Services is found.
-
Compare installed version against affected versionsCompare the discovered version against the affected list: 7.0, 7.1, 7.6, 7.7, 7.8, 7.9, and 7.11. Version 7.12 and later are not affected.Affected if The installed version matches exactly one of: 7.0, 7.1, 7.6, 7.7, 7.8, 7.9, or 7.11.
-
Check if the provisioning server component is activeVerify the Citrix Provisioning Services Streaming Server or Console component is running. This is typically the component that would expose the kernel address information through its error handling or diagnostic output.Affected if The PVS server component is installed and active, enabling the vulnerable code path.
The environment is affected if Citrix Provisioning Services is installed and the version is exactly 7.0, 7.1, 7.6, 7.7, 7.8, 7.9, or 7.11.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpgrade Citrix Provisioning Services to version 7.12 or later to remediate this vulnerability.
Fix this in Provisioning Services
Scoped from the published advisory
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-9677 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2016-9677 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data