CVE-2023-26213

Exp

On Barracuda CloudGen WAN Private Edge Gateway devices before 8 webui-sdwan-1089-8.3.1-174141891, an OS command injection vulnerability exists in /ajax/update_certificate - a crafted HTTP request allows an authenticated attacker to execute arbitrary commands. For example, a name field can contain :password and a password field can contain shell metacharacters.

Published: 2023-03-03 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-26213 is rated High Exploit Risk (80.7/100): CVSS High severity, with high exploitation likelihood (EPSS 7.88%, 94th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +4.00% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2023-26213

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2023-26213

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 3.88% 7.88% +4.00%
2 2026-04-04 4.50% 3.88% -0.62%
3 2026-03-16 — 4.50% —

Full EPSS history (32 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-26213

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.2 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.2 5.9 [email protected]
7.2 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.2 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2023-26213

Affected software / configurations for CVE-2023-26213

Vendor Product Version Raw CPE
barracuda t100b_firmware 8.3.1 cpe:2.3:o:barracuda:t100b_firmware:8.3.1:-:*:*:*:*:*:*
barracuda t200c_firmware 8.3.1 cpe:2.3:o:barracuda:t200c_firmware:8.3.1:-:*:*:*:*:*:*
barracuda t400c_firmware 8.3.1 cpe:2.3:o:barracuda:t400c_firmware:8.3.1:-:*:*:*:*:*:*
barracuda t600d_firmware 8.3.1 cpe:2.3:o:barracuda:t600d_firmware:8.3.1:-:*:*:*:*:*:*
barracuda t900b_firmware 8.3.1 cpe:2.3:o:barracuda:t900b_firmware:8.3.1:-:*:*:*:*:*:*
barracuda t93a_firmware 8.3.1 cpe:2.3:o:barracuda:t93a_firmware:8.3.1:-:*:*:*:*:*:*
barracuda t193a_firmware 8.3.1 cpe:2.3:o:barracuda:t193a_firmware:8.3.1:-:*:*:*:*:*:*

References for CVE-2023-26213

cvelogic Threat Intelligence