How severe is CVE-2023-26213?

CVE-2023-26213 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-26213 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-26213?

CVE-2023-26213 primarily affects Barracuda T100b Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-26213?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-26213 published?

CVE-2023-26213 was published on 2023-03-03 and last updated on 2026-06-17.

CVE-2023-26213

CVE-2023-26213 is a high-severity vulnerability in Barracuda T100b Firmware with a CVSS 3.x base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 7.2)
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Barracuda T100b Firmware
Published: 2023-03-03
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2023-26213?: 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.
How severe is CVE-2023-26213?: CVE-2023-26213 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-26213 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-26213?: CVE-2023-26213 primarily affects Barracuda T100b Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-26213?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-26213 published?: CVE-2023-26213 was published on 2023-03-03 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:o:barracuda:t100b_firmware:8.3.1:-:*:*:*:*:*:*
cpe:2.3:o:barracuda:t200c_firmware:8.3.1:-:*:*:*:*:*:*
cpe:2.3:o:barracuda:t400c_firmware:8.3.1:-:*:*:*:*:*:*
cpe:2.3:o:barracuda:t600d_firmware:8.3.1:-:*:*:*:*:*:*
cpe:2.3:o:barracuda:t900b_firmware:8.3.1:-:*:*:*:*:*:*
cpe:2.3:o:barracuda:t93a_firmware:8.3.1:-:*:*:*:*:*:*
cpe:2.3:o:barracuda:t193a_firmware:8.3.1:-:*:*:*:*:*:*

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