CVE-2026-20032

Read full description

A vulnerability in the Python interpreter of Cisco NX-OS Software could allow an authenticated, local attacker with low privileges to escape the Python sandbox and gain unauthorized access to the underlying operating system of an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by manipulating specific functions within the Python interpreter. A successful exploit could allow an attacker to escape the Python sandbox and execute arbitrary commands on the underlying operating system with the privileges of the authenticated user.

CVSS 4.4 (MEDIUM)

Attention and evidence

HYPE SCORE

0.6/10

REALITY · THREAT PRIORITY

1.5/10

General review priority; not probability

Evidence confidence: Insufficient evidence

Why this priority?

Technical severity: CVSS 4.4: +1.54
Fresh EPSS: 0.11%: +0.00

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 4 documents and public datasets.

Hype components

Headline sample (25%)

0/100

Press, 30 days (60%)

10/100

Grounded branding (15%)

0/100

HYPE TOTAL6/100

Sources and documents

Cisco Security Advisory

Technical advisory · 07 Oct 2026, 16:00 · Cisco Advance Notification for Publication of October 7, 2026, Security Advisories

Cisco Security Advisory

Press · 07 Oct 2026, 16:00 · Cisco Advance Notification for Publication of October 7, 2026, Security Advisories

Cisco Security Advisory

Technical advisory · 07 Oct 2026, 16:00 · Cisco NX-OS Software Python Sandbox Escape Vulnerability

Cisco Security Advisory

Press · 07 Oct 2026, 16:00 · Cisco NX-OS Software Python Sandbox Escape Vulnerability

Score evolution

● Hype ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.6 · reality 1.5 (2026-11-02 15:14). The curve appears once the score changes.

Public exploit evidence

Public exploit entries / repo candidates

Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs. Published 29 days ago. Exploitation evidence usually takes weeks to show up: a low reality score can mean there is no data yet, not that the flaw is mild.

Evidence in context

Confidence in exploitation evidence: Insufficient evidence
Priority basis: Exploitation in attacks unconfirmed; CVSS 4.4; EPSS 0.1%
Attention, last 30 days: 2 distinct story titles; 2 press documents; 1 publisher domains.
Technical potential: local access, low privileges, no user interaction.
Observed activity: No exploitation observation is recorded.
Known scale: Not quantified.
Evidence confidence basis: Insufficient evidence

Score evaluated: 2026-11-05 14:00:00.097835+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline

First press mention

07 Oct 2026, 16:00

Latest press mention

07 Oct 2026, 16:00

Published

07 Oct 2026, 16:11

Score calculated

05 Nov 2026, 14:00