How severe is CVE-2015-1027?

CVE-2015-1027 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2015-1027 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-2015-1027?

CVE-2015-1027 primarily affects Percona Toolkit. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-1027?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2015-1027 published?

CVE-2015-1027 was published on 2017-09-29 and last updated on 2026-06-17.

CVE-2015-1027

CVE-2015-1027 is a medium-severity vulnerability in Percona Toolkit with a CVSS 3.x base score of 5.9. 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 4.3
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Percona Toolkit
Published: 2017-09-29
Last modified: 2026-06-17

Description

The version checking subroutine in percona-toolkit before 2.2.13 and xtrabackup before 2.2.9 was vulnerable to silent HTTP downgrade attacks and Man In The Middle attacks in which the server response could be modified to allow the attacker to respond with modified command payload and have the client return additional running configuration information leading to an information disclosure of running configuration of MySQL.

Frequently asked questions

What is CVE-2015-1027?: The version checking subroutine in percona-toolkit before 2.2.13 and xtrabackup before 2.2.9 was vulnerable to silent HTTP downgrade attacks and Man In The Middle attacks in which the server response could be modified to allow the attacker to respond with modified command payload and have the client return additional running configuration information leading to an information disclosure of running configuration of MySQL.
How severe is CVE-2015-1027?: CVE-2015-1027 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2015-1027 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-2015-1027?: CVE-2015-1027 primarily affects Percona Toolkit. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-1027?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-1027 published?: CVE-2015-1027 was published on 2017-09-29 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:percona:toolkit:*:*:*:*:*:*:*:*
cpe:2.3:a:percona:xtrabackup:*:*:*:*:*:*:*:*

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