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NVD / CVE Program· CNA cisco

CVE-2026-20245: Cisco Catalyst SD-WAN Controller Authenticated Privilege Escalation Vulnerability

Noroxi assessment

Priority: This week (action score 69/100)

  • CISA has confirmed exploitation in the wild (Jun 9, 2026). Remediation deadline for US federal agencies: Jun 23, 2026.
  • Probability of exploitation in the next 30 days: 25.3% (FIRST EPSS); higher than 97.9% of all records.
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.
  • Mentioned 2 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Don’t wait for the next maintenance window. Until a fix is released, restrict access to the affected component and follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · CISA KEV · FIRST EPSS

A vulnerability in the CLI of Cisco Catalyst SD-WAN Controller, formerly SD-WAN vSmart, Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, and Cisco Catalyst SD-WAN Validator, formerly SD-WAN vBond, could allow an authenticated, local attacker to execute arbitrary commands as root by supplying a crafted file to the affected system. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by uploading a crafted file to the affected system. A successful exploit could allow the attacker to perform command injection attacks on an affected system and elevate their privileges as the root user. To exploit this vulnerability, the attacker must have netadmin privileges on the affected system. This would require valid credentials or exploitation of or . Cisco is not aware of successful exploitation by other methods. Cisco has observed limited cases where the exploitation of this bug resulted in a configuration change pushed to edge devices. Cisco recommends that customers upgrade to the fixed software that is documented in the that was published on May 14, 2026, and verify the configuration of the edge devices.

HighCVSS 7.8 · v3.1KEVWeaponized No fix recorded
Published
Jun 4, 2026
Updated
Jul 23, 2026
EPSS
25.3% · 97th percentile

Report tools

JSON

Action score

69

This week

Don’t wait for the next maintenance window.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
30 / 30 · Listed
EPSS
8 / 30 · 25.3%

CISA SSVC decision

Exploitation
active
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · cisco
7.8
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Jun 9, 2026. That signals real attacks, not theory.

Remediation deadline for US federal agencies: Jun 23, 2026.

Get told when this record changes

  • In CISA KEV: exploitation in the wild confirmed
  • Weaponized exploit exists
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-20245

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
ciscocatalyst sd-wan manager
ciscosd-wan vsmart controller

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • cisco catalyst sd-wan managerbefore 20.9.9.1
  • cisco catalyst sd-wan manager20.10 and later · before 20.12.5.4
  • cisco catalyst sd-wan manager20.12.6 and later · before 20.12.6.2
  • cisco catalyst sd-wan manager20.13 and later · before 20.15.4.4
  • cisco catalyst sd-wan manager20.15.5 and later · before 20.15.5.2
  • cisco catalyst sd-wan manager20.16 and later · before 20.18.2.2
  • cisco catalyst sd-wan manager26.1 and later · before 26.1.1.1
  • cisco catalyst sd-wan manager20.12.7
  • cisco sd-wan vsmart controllerbefore 20.9.9.1
  • cisco sd-wan vsmart controller20.10 and later · before 20.12.5.4
  • cisco sd-wan vsmart controller20.12.6 and later · before 20.12.6.2
  • cisco sd-wan vsmart controller20.13 and later · before 20.15.4.4
  • cisco sd-wan vsmart controller20.15.5 and later · before 20.15.5.2
  • cisco sd-wan vsmart controller20.16 and later · before 20.18.2.2
  • cisco sd-wan vsmart controller26.1 and later · before 26.1.1.1
  • cisco sd-wan vsmart controller20.12.7

Versions reported by the vendor

Affected version ranges reported by the assigning authority (cisco). Independent of NVD's CPE analysis and usually ahead of it.

  • Cisco Cisco Catalyst SD-WAN Controller

    • 20.6.4, 20.9.2, 20.3.6, 20.7.2, 20.7.1, 20.5.1, 20.6.2, 19.3.0, 20.6.1, 17.2.4, 18.2.0, 18.4.6 … (+28)affected

  • Cisco Cisco Catalyst SD-WAN Manager

    • 20.1.12, 19.2.1, 18.4.4, 18.4.5, 20.1.1.1, 20.1.1, 19.3.0, 19.2.2, 19.2.099, 18.3.6, 18.3.7, 19.2.0 … (+28)affected

Same product

cisco: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-20182Cisco Catalyst SD-WAN Controller Authentication Bypass VulnerabilityKEV
    98Now
  • CVE-2026-20127Cisco Catalyst SD-WAN Controller Authentication Bypass VulnerabilityKEV
    96Now
  • CVE-2026-76504Cisco Catalyst SD-WAN Manager System Account Authorization Bypass VulnerabilityKEV
    81Now

Published before and after this one in the same product

  • ← EarlierCVE-2026-20210May 14, 2026 · Cisco Catalyst SD-WAN Manager Privilege Escalation Vulnerability
    21Monitor
  • ← EarlierCVE-2026-20224May 14, 2026 · Cisco Catalyst SD-WAN Manager XML External Entity Injection Vulnerability
    34Monitor
  • Later →CVE-2026-20262Jun 15, 2026 · Cisco Catalyst SD-WAN Manager Arbitrary File Write VulnerabilityKEV
    65This week

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

  • Proof-of-concept repository on GitHub ×3

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:02026-06-06
Proof-of-concept repository on GitHubstars:02026-06-10
Proof-of-concept repository on GitHubstars:42026-06-14

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. First PoC+1 d
  3. CISA KEV+4 d
  4. TodayNov 9, 2026+158 d

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

—

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

  • CVE-2026-2018221 days apartCisco Catalyst SD-WAN Controller Authentication Bypass VulnerabilityKEV
    98Now
  • CVE-2026-2012799 days apartCisco Catalyst SD-WAN Controller Authentication Bypass VulnerabilityKEV
    96Now
  • CVE-2026-76504118 days apartCisco Catalyst SD-WAN Manager System Account Authorization Bypass VulnerabilityKEV
    81Now
  • CVE-2026-2012999 days apartCisco Catayst SD-WAN Authentication Bypass Vulnerability
    39Monitor

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-116 · Improper Encoding or Escaping of Output

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records