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Fencer Vulns
medium 5.3

CVE-2026-11754 json

User Enumeration in Seres Software's syWEB

published 2026-08-27 2 mo ago modified 2026-08-28 2 mo ago also EUVD-2026-67135

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 26%
public exploits
0
none known

Summary

Observable discrepancy vulnerability in Seres Software syWEB allows Account Footprinting.

This issue affects syWEB: through 27082026. NOTE: The vendor was contacted and it was learned that the product is not supported.

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 mo ago

Exploit prediction

0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

  • Seres Software syWEB

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.