NVD / CVE Program· CNA Gallagher

CVE-2020-16098: It is possible to enumerate access card credentials via an unauthenticated network connection to the server in versions of Command Centre v8

Noroxi assessment

Priority: Monitor (action score 39/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 1% (FIRST EPSS); higher than 65.5% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

It is possible to enumerate access card credentials via an unauthenticated network connection to the server in versions of Command Centre v8.20 prior to v8.20.1166(MR3), versions of 8.10 prior to v8.10.1211(MR5), versions of 8.00 prior to v8.00.1228(MR6), all versions of 7.90 and earlier. These credentials can then be used to encode low security cards to be used by the system where insecure card technologies are supported.

CriticalCVSS 9.8 · v3.1—No exploit No fix recorded

Published: Sep 15, 2020
Updated: Jun 16, 2026
EPSS: 1.0% · 65th percentile
CWE: CWE-287

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 39 / 40 · 9.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 1.0%

CNA vs NVD score

NVD: 9.8
CNA · Gallagher: 9.8; agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
No fixed version yet

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Noroxi analysis

What does it mean in your environment?

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
gallagher	command centre	cpe:2.3:a:gallagher:command_centre

Affected versions

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

gallagher command centre8.00 and later · before 8.00.1228
gallagher command centre8.10 and later · before 8.10.1211
gallagher command centre8.20 and later · before 8.20.1166
gallagher command centre8.30 and later · before 8.30.1236
gallagher command centre8.00.1228
gallagher command centre8.10.1211
gallagher command centre8.20.1166
gallagher command centre8.30.1236

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Gallagher). Independent of NVD's CPE analysis and usually ahead of it.

Gallagher Command Centre
- unspecified and later · up to and including 7.90affected
- 8.20 and later · before 8.20.1166(MR3)affected
- 8.10 and later · before 8.10.1211(MR5)affected
- 8.00 and later · before 8.00.1228(MR6)affected

Same product

gallagher: all records

Other highest-scoring records for the same primary product.

CVE-2019-15294An issue was discovered in Gallagher Command Centre 8.10 before 8.10.1092(MR2).
39Monitor
CVE-2020-16103Type confusion in Gallagher Command Centre Server allows a remote attacker to crash the server or possibly cause remote code execution.
36Monitor
CVE-2021-23140Improper Authorization vulnerability in Gallagher Command Centre Server allows command line macros to be modified by an unauthorised Command
35Monitor

Published before and after this one in the same product

← EarlierCVE-2020-16096Sep 15, 2020 · In Gallagher Command Centre versions 8.10 prior to 8.10.1134(MR4), 8.00 prior to 8.00.1161(MR5), 7.90 prior to 7.90.991(MR5), 7.80 prior to
30Monitor
← EarlierCVE-2020-16097Sep 15, 2020 · On controllers running versions of v8.20 prior to vCR8.20.200221b (distributed in v8.20.1093(MR2)), v8.10 prior to vGR8.10.179 (distributed
18Monitor
Later →CVE-2020-16099Sep 15, 2020 · In Gallagher Command Centre v8.20 prior to v8.20.1093(MR2) it is possible to create Guard Tour events that when accessed via things like rep
17Monitor

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.

No history yet (it accumulates with the daily EPSS job).

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.
No user action is required.
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: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-287 · Improper Authentication

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Root cause

Authentication is added route by route instead of being enforced in one place. When a route added later bypasses the shared middleware, the session check never runs for it.

The bug in code

The whole CWE-287 class

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

Vulnerable

1app.use("/admin", requireSession, adminRouter);
2

3// Route added later skips the middleware
4app.post("/admin-api/config", updateConfig);

Fixed

1const admin = express.Router();
2admin.use(requireSession, requireRole("admin"));
3

4admin.post("/config", updateConfig);
5app.use("/admin", admin);

Attack context

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

Attack patterns (CAPEC)

ATT&CK techniques

Change log

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

References

security.gallagher.com/Security-Advisories/CVE-2020-16098

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

All records