5.8

CVE-2026-20057: cisco cisco cyber vision Divide By Zero

CVSS: 5.8v3.1MediumAnalyzed
Published 04-03-2026Last modified 04-03-2026
Open JSON

Vulnerability summary

CVE-2026-20057 is a medium (CVSS 5.8) Divide By Zero vulnerability in cisco cisco cyber vision. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 37.5% of scored vulnerabilities.

Overall risk
23/100
0100
Low · default modelHow is this calculated?
CVSS score
5.8/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.45%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 04-03-2026
    PublishedVulnerability first disclosed.
  2. 04-03-2026
    Last modifiedVulnerability information updated.

Description

Multiple Cisco products are affected by a vulnerability in the Snort 3 Visual Basic for Applications (VBA) feature which could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash. This vulnerability is due to lack of proper error checking when decompressing VBA data. An attacker could exploit this vulnerability by sending a crafted VBA data to the Snort 3 Detection Engine on the targeted device. A successful exploit could allow the attacker to cause the Snort 3 Detection Engine to unexpectedly restart causing a a denial of service (DoS) condition.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.45%

Chance of exploitation in the next 30 days

Percentile

38%

Versus all other CVEs

30-day change

+0.02 pp

From 0.43% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.45%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cisco7 products
  • cisco cyber vision3.0.0 | 3.0.2 | 3.0.3 | 3.0.1 | 3.1.0 | 3.0.4 | 3.1.1 | 3.1.2 | 3.2.0 | 3.0.5 | 3.2.1 | 3.0.6 | 3.2.2 | 3.2.3 | 3.2.4 | 4.0.0 | 4.0.1 | 4.0.2 | 4.0.3 | 4.1.0 | 4.1.1 | 4.1.2 | 4.1.3 | 4.1.4 | 4.2.0 | 4.2.1 | 4.1.5 | 4.2.2 | ≥ 4.2.0, < 4.3.0 | 4.2.3 | 4.2.4 | 4.2.6 | 4.1.6 | 4.3.0 | 4.3.1 | 4.3.2 | 4.3.3 | 4.4.0 | 4.4.1 | 4.4.2 | 4.4.3 | 4.1.7 | 5.0.0 | 5.0.1 | 5.0.2 | 5.1.0 | 5.1.1 | 5.1.2 | 5.1.3 | 5.2.0 | 5.2.1 | 5.3.0 | 5.3.1
  • cisco secure firewall threat defense (ftd) software7.2.0 | 7.2.0.1 | 7.2.1 | 7.3.0 | 7.2.2 | 7.2.3 | 7.3.1 | 7.2.4 | 7.2.5 | 7.2.4.1 | 7.3.1.1 | 7.4.0 | 7.2.5.1 | 7.4.1 | 7.2.6 | 7.4.1.1 | 7.2.7 | 7.2.5.2 | 7.3.1.2 | 7.2.8 | 7.6.0 | 7.4.2 | 7.2.8.1 | 7.4.2.1 | 7.2.9 | 7.7.0 | 7.4.2.2 | 7.2.10 | 7.6.1 | 7.4.2.3 | 7.6.2 | 7.7.10 | 7.6.2.1 | 7.7.10.1 | 7.4.2.4 | 7.2.10.2 | 7.4.3
  • cisco utd snort ips engine software17.12.1a | 17.12.2 | 17.13.1a | 17.12.3 | 17.14.1a | 17.12.4 | 17.12.3a | 17.15.1a | 17.16.1a | 17.12.4a | 17.15.2c | 17.12.4b | 17.15.2a | 17.12.5 | 17.17.1 | 17.12.5a | 17.15.3a | 17.15.3 | 17.12.5b | 17.12.5c | 17.15.4 | 17.18.1 | 17.18.1a | 17.12.6 | 17.15.4c | 17.12.5d | 17.18.2
  • cyber_vision3.0.0 | 3.0.1 | 3.0.2 | 3.0.3 | 3.0.4 | 3.0.5 | 3.0.6 | 3.1.0 | 3.1.1 | 3.1.2 | 3.2.0 | 3.2.1 | 3.2.2 | 3.2.3 | 3.2.4 | 4.0.0 | 4.0.1 | 4.0.2 | 4.0.3 | 4.1.0 | 4.1.1 | 4.1.2 | 4.1.3 | 4.1.4 | 4.1.5 | 4.1.6 | 4.1.7 | 4.2.0 | 4.2.1 | 4.2.2 | 4.2.3 | 4.2.4 | 4.2.6 | 4.3.0 | 4.3.1 | 4.3.2 | 4.3.3 | 4.4.0 | 4.4.1 | 4.4.2 | 4.4.3 | 5.0.0 | 5.0.1 | 5.0.2 | 5.1.0 | 5.1.1 | 5.1.2 | 5.1.3 | 5.2.0 | 5.2.1 | 5.3.0 | 5.3.1
  • secure_firewall_threat_defense7.2.0 | 7.2.0.1 | 7.2.1 | 7.2.2 | 7.2.3 | 7.2.4 | 7.2.4.1 | 7.2.5 | 7.2.5.1 | 7.2.5.2 | 7.2.6 | 7.2.7 | 7.2.8 | 7.2.8.1 | 7.2.9 | 7.2.10 | 7.2.10.2 | 7.3.0 | 7.3.1 | 7.3.1.1 | 7.3.1.2 | 7.4.0 | 7.4.1 | 7.4.1.1 | 7.4.2 | 7.4.2.1 | 7.4.2.2 | 7.4.2.3 | 7.4.2.4 | 7.4.3 | 7.6.0 | 7.6.1 | 7.6.2 | 7.6.2.1 | 7.7.0 | 7.7.10 | 7.7.10.1

1 vendor · 7 products

References

1 links