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CVE-2016-6427· NVD / CVE Program· CNA cisco

Cross-site request forgery (CSRF) vulnerability in Cisco Unified Intelligence Center (CUIC) 8.5.4 through 9.1(1), as used in Unified Contact

Cross-site request forgery (CSRF) vulnerability in Cisco Unified Intelligence Center (CUIC) 8.5.4 through 9.1(1), as used in Unified Contact Center Express 10.0(1) through 11.0(1), allows remote attackers to hijack the authentication of arbitrary users, aka Bug IDs CSCuy75036 and CSCuy81654.

HighCVSS 8.8 · v3.0—No exploit No fix recorded
Published
Oct 6, 2016
Updated
Jun 16, 2026
EPSS
0.6% · 48th percentile
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Report tools

JSON

Action score

35

Monitor

Low priority for now.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.6%

Affected systems

VendorProduct
ciscounified contact center express
ciscounified intelligence center

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • cisco unified contact center express10.0(1)
  • cisco unified contact center express10.5(1)
  • cisco unified contact center express10.6(1)
  • cisco unified contact center express11.0(1)
  • cisco unified intelligence center8.5.4
  • cisco unified intelligence center9.0(2)
  • cisco unified intelligence center9.1(1)

Same product

cisco: all records

Other highest-scoring records for the same primary product.

  • CVE-2020-3280Cisco Unified Contact Center Express Remote Code Execution Vulnerability
    41Plan
  • CVE-2018-0403Multiple vulnerabilities in the web-based management interface of Cisco Unified Contact Center Express (Unified CCX) could allow an unauthen
    40Plan
  • CVE-2025-20358Cisco Unified Contact Center Express Editor Authentication Bypass Vulnerability
    39Monitor
  • CVE-2025-20354Cisco Unified Contact Center Express Remote Code Execution Vulnerability
    39Monitor
  • CVE-2022-20658Cisco Unified Contact Center Management Portal and Unified Contact Center Domain Manager Privilege Escalation Vulnerability
    38Monitor
  • CVE-2018-0402Multiple vulnerabilities in the web-based management interface of Cisco Unified Contact Center Express (Unified CCX) could allow an unauthen
    35Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-352 · Cross-Site Request Forgery (CSRF)

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

nvd-primary

Root cause

State-changing requests rely on the session cookie the browser sends automatically; nothing verifies that the request came from the user’s own page.

The bug in code

The whole CWE-352 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
app.use(session({ cookie: { httpOnly: true } }));app.post("/account/address", updateAddress);

Fixed

ts
app.use(session({ cookie: { httpOnly: true, sameSite: "lax" } }));app.post("/account/address", csrfProtection, updateAddress);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records