CVE-2026-20128
Published Feb 25, 2026
Last updated 3 months ago
- Description
- A vulnerability in the Data Collection Agent (DCA) feature of Cisco Catalyst SD-WAN Manager could allow an unauthenticated, remote attacker to gain DCA user privileges on an affected system. This vulnerability is due to the presence of a credential file for the DCA user on an affected system. An attacker could exploit this vulnerability by sending a crafted HTTP request and reading the file that contains the DCA password from that affected system. A successful exploit could allow the attacker to access another affected system and gain DCA user privileges. Note: Cisco Catalyst SD-WAN Manager releases 20.18 and later are not affected by this vulnerability.
- Source
- psirt@cisco.com
- NVD status
- Analyzed
- Products
- catalyst_sd-wan_manager
CVSS 3.1
- Type
- Secondary
- Base score
- 7.5
- Impact score
- 6
- Exploitability score
- 0.8
- Vector string
- CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
- Severity
- HIGH
- psirt@cisco.com
- CWE-257
- Hype score
- Not currently trending
CVE-2026-20133: CVEs: CVE-2026-20133 · CVE-2026-20128 · CVE-2026-20122 · CVE-2026-20127 Product: Cisco Catalyst SD-WAN Manager formerly vManage < 20.18 CISA KEV: Yes — federal deadline passed April 24 CVE-2026-20133, May 8 CVE-2026-20128 Exploitation Status: Actively…
@lyrie_ai
14 Jun 2026
65 Impressions
0 Retweets
0 Likes
0 Bookmarks
1 Reply
0 Quotes
Cisco's Catalyst SD-WAN Manager faces active exploits of CVE-2026-20122 & CVE-2026-20128. Update systems now to protect your network. Link: https://t.co/FptL5AdTds #Cisco #SDWAN #Cybersecurity #Vulnerabilities #Exploitation #Patching #Networks #Security #Threats #CVE #Routers
@dailytechonx
7 Jun 2026
55 Impressions
0 Retweets
0 Likes
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PoC is now public for CVE-2026-20127 in Cisco Catalyst SD-WAN. UAT-8616 has been exploiting it since 2023, now anyone can try. Two more SD-WAN flaws also active: CVE-2026-20122 and CVE-2026-20128. Patch window is effectively closed. https://t.co/gZOpZQntR2
@CybrPulse
7 Mar 2026
80 Impressions
0 Retweets
1 Like
0 Bookmarks
0 Replies
0 Quotes
🚨Cisco Catalyst SD-WANの脆弱性、さらに2件の悪用が明らかに：CVE-2026-20128、CVE-2026-20122 ⚠️米CISA、Apple製品の古い脆弱性3件をKEVカタログに追加（CVE-2023-43000、CVE-2021-30952、CVE-2023-41974） 〜サイバーアラート3月6日
@MachinaRecord
6 Mar 2026
189 Impressions
1 Retweet
1 Like
0 Bookmarks
0 Replies
0 Quotes
3 Cisco SD-WAN CVEs actively exploited in 8 days. Here's the scorecard: CVE-2026-20127 — CVSS 10.0 — Auth bypass zero-day — Exploited since 2023 CVE-2026-20128 — CVSS 5.5 — DCA credential leak — Exploited (confirmed March 5) CVE-2026-20122 — CVSS 7.1 — File overw
@FirstPassLab
5 Mar 2026
101 Impressions
0 Retweets
0 Likes
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0 Replies
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