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CVE-2023-26213

26
FAUCET Score

CVE-2023-26213 is an OS command injection vulnerability affecting Barracuda CloudGen WAN Private Edge Gateway devices prior to version 8 webui-sdwan-1089-8.3.1-174141891. An authenticated attacker can exploit this flaw in the /ajax/update_certificate endpoint by crafting malicious HTTP requests, specifically by injecting shell metacharacters into the 'password' field. This vulnerability carries a high CVSS score of 7.2, indicating that it can be exploited remotely with low complexity by a highly privileged attacker, leading to high impacts on confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
8.3.1CPE matchmatch criteria
cpe:2.3:o:barracuda:t100b_firmware:8.3.1:-:*:*:*:*:*:*
8.3.1CPE matchmatch criteria
cpe:2.3:o:barracuda:t200c_firmware:8.3.1:-:*:*:*:*:*:*
8.3.1CPE matchmatch criteria
cpe:2.3:o:barracuda:t400c_firmware:8.3.1:-:*:*:*:*:*:*
8.3.1CPE matchmatch criteria
cpe:2.3:o:barracuda:t600d_firmware:8.3.1:-:*:*:*:*:*:*
8.3.1CPE matchmatch criteria
cpe:2.3:o:barracuda:t900b_firmware:8.3.1:-:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.2HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
7.88%
Probability of exploitation in next 30 days
EPSS Percentile
94.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0788 is in the 93rd percentile among its peer group of 5,531 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

campus.barracuda.com / product/cloudgenwan/doc/96024723/release-notes-8-3-1
Release Notes
seclists.org / fulldisclosure/2023/Mar/2
ExploitMailing ListThird Party Advisory
sec-consult.com / vulnerability-lab/advisory/os-command-injection-in-barracuda-cloudgen-wan
ExploitThird Party Advisory
barracuda.com / products/network-security/cloudgen-wan
Product