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CVE-2019-1943

44
FAUCET Score

CVE-2019-1943 describes an open redirect vulnerability in the web interface of Cisco Small Business 200, 300, and 500 Series Switches. This flaw, caused by improper input validation, allows an unauthenticated, remote attacker to redirect a user to a malicious web page. With a CVSS score of 6.1 (Medium), the vulnerability requires user interaction and could lead to information disclosure and integrity compromise through phishing attacks. While not actively exploited in the wild (no KEV entry), public exploit code exists (ExploitDB, Nuclei templates), though there is minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:cisco:sg200-50_firmware:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:cisco:sg200-50p_firmware:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:cisco:sg200-50fp_firmware:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:cisco:sg200-26_firmware:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:cisco:sg200-26p_firmware:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.7MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.6
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
10.68%
Probability of exploitation in next 30 days
EPSS Percentile
95.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
Nuclei: CVE-2019-1943 · May 22, 2023
ExploitDB: EDB-47118 · Jul 15, 2019
This CVE's current EPSS score of 0.1068 is in the 98th percentile among its peer group of 26,236 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20190717-sbss-redirect
Vendor Advisory
securityfocus.com / bid/109288
Third Party AdvisoryVDB Entry