CVE-2021-25267
CVE-2021-25267 is a medium-severity vulnerability in Sophos Firewall Firmware with a CVSS 3.x base score of 6.8. 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-79.
Key facts
- Severity: Medium (CVSS 3.x base score 6.8)
- CVSS v2: 8.5
- EPSS exploit prediction: 1% (64th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Sophos Firewall Firmware
- Published:
- Last modified:
Description
Multiple XSS vulnerabilities in Webadmin allow for privilege escalation from admin to super-admin in Sophos Firewall older than version 19.0 GA.
Frequently asked questions
- What is CVE-2021-25267?
- Multiple XSS vulnerabilities in Webadmin allow for privilege escalation from admin to super-admin in Sophos Firewall older than version 19.0 GA.
- How severe is CVE-2021-25267?
- CVE-2021-25267 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-25267 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-25267?
- CVE-2021-25267 affects Sophos Firewall Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-25267?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-25267 published?
- CVE-2021-25267 was published on 2022-05-05 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:sophos:firewall_firmware:*:*:*:*:*:*:*:*
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