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CVE-2019-15993· NVD / CVE Program· CNA cisco

Cisco Small Business Switches Information Disclosure Vulnerability

A vulnerability in the web UI of Cisco Small Business Switches could allow an unauthenticated, remote attacker to access sensitive device information. The vulnerability exists because the software lacks proper authentication controls to information accessible from the web UI. An attacker could exploit this vulnerability by sending a malicious HTTP request to the web UI of an affected device. A successful exploit could allow the attacker to access sensitive device information, which includes configuration files.

MediumCVSS 5.3 · v3.1—Proof of concept No fix recorded
Published
Sep 22, 2020
Updated
Jun 16, 2026
EPSS
10.3% · 96th percentile
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Report tools

JSON

Action score

24

Monitor

Low priority for now.

CVSS
21 / 40 · 5.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
3 / 30 · 10.3%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
5.3
CNA · cisco
7.5
2.2 point gap

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

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

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; 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

Affected systems

VendorProduct
ciscosg250x-24 firmware
ciscosg250x-24
ciscosg250x-24p firmware
ciscosg250x-24p
ciscosg250x-48 firmware
ciscosg250x-48
ciscosg250x-48p firmware
ciscosg250x-48p
ciscosg250-08 firmware
ciscosg250-08
ciscosg250-08hp firmware
ciscosg250-08hp

and 188 more

Affected versions

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

  • cisco sf200-24 firmwarebefore 1.4.11.4
  • cisco sf200-24fp firmwarebefore 1.4.11.4
  • cisco sf200-24p firmwarebefore 1.4.11.4
  • cisco sf200-48 firmwarebefore 1.4.11.4
  • cisco sf200-48p firmwarebefore 1.4.11.4
  • cisco sf250-24 firmwarebefore 2.5.0.92
  • cisco sf250-24p firmwarebefore 2.5.0.92
  • cisco sf250-48 firmwarebefore 2.5.0.92
  • cisco sf250-48hp firmwarebefore 2.5.0.92
  • cisco sf300-08 firmwarebefore 1.4.11.4
  • cisco sf300-24 firmwarebefore 1.4.11.4
  • cisco sf300-24mp firmwarebefore 1.4.11.4
  • cisco sf300-24p firmwarebefore 1.4.11.4
  • cisco sf300-24pp firmwarebefore 1.4.11.4
  • cisco sf300-48 firmwarebefore 1.4.11.4
  • cisco sf300-48p firmwarebefore 1.4.11.4
  • cisco sf300-48pp firmwarebefore 1.4.11.4
  • cisco sf302-08 firmwarebefore 1.4.11.4
  • cisco sf302-08mp firmwarebefore 1.4.11.4
  • cisco sf302-08mpp firmwarebefore 1.4.11.4

Versions reported by the vendor

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

  • Cisco Cisco Small Business 250 Series Smart Switches Software

    • n/aaffected

Same product

cisco: all records

Other highest-scoring records for the same primary product.

  • CVE-2020-3297Cisco Small Business Smart and Managed Switches Session Management Vulnerability
    40Plan
  • CVE-2020-3363Cisco Small Business Smart and Managed Switches Denial of Service Vulnerability
    35Monitor
  • CVE-2020-3121Cisco Small Business Smart and Managed Switches Cross-Site Scripting Vulnerability
    24Monitor

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

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Exploit-DB entry ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Exploit-DB entryremote2023-04-05

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.

  1. Published
  2. First PoC+924 d
  3. TodayOct 12, 2026+2210 d
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.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
low · data can be read
Integrity
none
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
Low
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-16 · Configuration

CVSS vector

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

nvd-primary

Attack context

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

MITRE has no CAPEC/ATT&CK mapping for this CWE.

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