How severe is CVE-2015-5259?

CVE-2015-5259 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability high.

Is CVE-2015-5259 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 57% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-5259?

CVE-2015-5259 primarily affects Apache Subversion. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-5259?

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-2015-5259 published?

CVE-2015-5259 was published on 2016-01-08 and last updated on 2026-06-17.

CVE-2015-5259

CVE-2015-5259 is a high-severity vulnerability in Apache Subversion with a CVSS 3.x base score of 8.6. Its EPSS exploit-prediction score of 57% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: High (CVSS 3.x base score 8.6)
CVSS v2: 9.0
EPSS exploit prediction: 57% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Apache Subversion
Published: 2016-01-08
Last modified: 2026-06-17

Description

Integer overflow in the read_string function in libsvn_ra_svn/marshal.c in Apache Subversion 1.9.x before 1.9.3 allows remote attackers to execute arbitrary code via an svn:// protocol string, which triggers a heap-based buffer overflow and an out-of-bounds read.

Frequently asked questions

What is CVE-2015-5259?: Integer overflow in the read_string function in libsvn_ra_svn/marshal.c in Apache Subversion 1.9.x before 1.9.3 allows remote attackers to execute arbitrary code via an svn:// protocol string, which triggers a heap-based buffer overflow and an out-of-bounds read.
How severe is CVE-2015-5259?: CVE-2015-5259 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability high.
Is CVE-2015-5259 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 57% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-5259?: CVE-2015-5259 primarily affects Apache Subversion. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-5259?: 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-2015-5259 published?: CVE-2015-5259 was published on 2016-01-08 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:apache:subversion:1.9.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:subversion:1.9.1:*:*:*:*:*:*:*
cpe:2.3:a:apache:subversion:1.9.2:*:*:*:*:*:*:*

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