Page generated: 11 Nov 2026, 04:38 UTC
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CVE-2026-20133

A vulnerability in Cisco Catalyst SD-WAN Software could allow an unauthenticated, remote attacker to view sensitive information on an affected system. This vulnerability is due to insufficient file system restrictions. An authenticated attacker with netadmin privileges could expl…

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A vulnerability in Cisco Catalyst SD-WAN Software could allow an unauthenticated, remote attacker to view sensitive information on an affected system. This vulnerability is due to insufficient file system restrictions. An authenticated attacker with netadmin privileges could exploit this vulnerability by accessing the vshell of an affected system. A successful exploit could allow the attacker to read sensitive information on the underlying operating system.
CVSS 6.5 (MEDIUM) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.2/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 6.5: +0.97
  • Fresh EPSS: 35.29%: +0.18

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

Sources: 13 documents and public datasets.

Hype components

Headline sample (25%)
0/100
Press, 30 days (60%)
0/100
Grounded branding (15%)
0/100
HYPE TOTAL0/100

Sources and documents

Proofpoint
Press · 27 May 2026, 07:00 · More CVEs, Same Playbook: 2026 Vulnerability Exploitation in the Wild - Proofpoint
Recorded Future
Press · 15 May 2026, 07:00 · April 2026 CVE Landscape - Recorded Future
The Hacker News
Press · 15 May 2026, 07:00 · CISA Adds Cisco SD-WAN CVE-2026-20182 to KEV After Admin Access Exploits - The Hacker News
Cisco Talos Blog
Press · 14 May 2026, 07:00 · Ongoing exploitation of Cisco Catalyst SD-WAN vulnerabilities - Cisco Talos Blog
LinkedIn
Press · 21 Apr 2026, 07:00 · CISA Warns of Actively Exploited Cisco SD-WAN Flaw - Orders Urgent Federal Patching - LinkedIn
See all 13 source documents
The Hacker News
Press · 21 Apr 2026, 07:00 · CISA Adds 8 Exploited Flaws to KEV, Sets April-May 2026 Federal Deadlines - The Hacker News
Help Net Security
Press · 21 Apr 2026, 07:00 · CISA flags another Cisco Catalyst SD-WAN Manager bug as exploited (CVE-2026-20133) - Help Net Security
SC Media
Press · 21 Apr 2026, 07:00 · Another Cisco Catalyst SD-WAN Manager bug added to CISA list - SC Media
SecurityWeek
Press · 21 Apr 2026, 07:00 · Organizations Warned of Exploited Cisco, Kentico, Zimbra Vulnerabilities - SecurityWeek
Cybersecurity Dive
Press · 21 Apr 2026, 07:00 · CISA confirms exploitation of 3 more Cisco networking device vulnerabilities - Cybersecurity Dive
BleepingComputer
Press · 21 Apr 2026, 07:00 · CISA flags new SD-WAN flaw as actively exploited in attacks - BleepingComputer
Cybersecurity Dive
Press · 17 Mar 2026, 07:00 · Security teams might be overlooking wider threat to Cisco SD-WAN - Cybersecurity Dive
The Hacker News
Press · 05 Mar 2026, 08:00 · Cisco Confirms Active Exploitation of Two Catalyst SD-WAN Manager Vulnerabilities - The Hacker News

Score evolution

● Hype   ● Reality

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

024681002 Nov 2026 · OBSERVED EXPLOITATION + LOWER RECENT ATTENTIONHype 0.0Reality 8.104 Nov 2026 · OBSERVED EXPLOITATION + LOWER RECENT ATTENTIONHype 0.0Reality 8.2Nov 2Nov 4

━ Hype Score (Perceived)  ━ Reality threat priority. Definition changes are not new attacks.

Public exploit evidence

0

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.

Evidence in context

Confidence in exploitation evidence
Exploitation recorded
Priority basis
Recorded exploitation; CVSS 6.5; EPSS 35.3%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
network access, low privileges, no user interaction.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

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

Source event timeline
Published
25 Feb 2026, 16:13
First press mention
05 Mar 2026, 08:00
Added to the CISA KEV catalog
20 Apr 2026, 00:00
Latest press mention
27 May 2026, 07:00
Score calculated
05 Nov 2026, 14:00