How severe is CVE-2019-10266?

CVE-2019-10266 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2019-10266 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-10266?

CVE-2019-10266 affects Ahsay Cloud Backup Suite. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-10266?

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-2019-10266 published?

CVE-2019-10266 was published on 2019-07-26 and last updated on 2026-06-17.

CVE-2019-10266

CVE-2019-10266 is a high-severity vulnerability in Ahsay Cloud Backup Suite with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 13% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-611.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 7.8
EPSS exploit prediction: 13% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
Affected product: Ahsay Cloud Backup Suite
Published: 2019-07-26
Last modified: 2026-06-17

Description

An issue was discovered in Ahsay Cloud Backup Suite before 8.1.1.50. When sending an out-of-bounds XML document to a URL, it is possible to read the file structure and even the content of files without authentication.

Frequently asked questions

What is CVE-2019-10266?: An issue was discovered in Ahsay Cloud Backup Suite before 8.1.1.50. When sending an out-of-bounds XML document to a URL, it is possible to read the file structure and even the content of files without authentication.
How severe is CVE-2019-10266?: CVE-2019-10266 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2019-10266 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-10266?: CVE-2019-10266 affects Ahsay Cloud Backup Suite. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-10266?: 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-2019-10266 published?: CVE-2019-10266 was published on 2019-07-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ahsay:cloud_backup_suite:*:*:*:*:*:*:*:*

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