Is CVE-2015-8879 in the CISA KEV catalog?

No. CVE-2015-8879 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-8879?

CVE-2015-8879 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2015-8879?

CVE-2015-8879 has an EPSS score of 3.42% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-8879?

Upgrade php to 5.6.12 or later.

CVE & CISA-KEV Catalog

CVE-2015-8879

HIGHEPSS 87th pctl

7.5

CVSS v3

NVD

Description

The odbc_bindcols function in ext/odbc/php_odbc.c in PHP before 5.6.12 mishandles driver behavior for SQL_WVARCHAR columns, which allows remote attackers to cause a denial of service (application crash) in opportunistic circumstances by leveraging use of the odbc_fetch_array function to access a certain type of Microsoft SQL Server table.

CWE-20Improper Input Validation

How to fix

Remediation Available

phpNVD

Affected:>= 5.6.0, < 5.6.12Fixed in:5.6.12CVE-2015-8879derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

3.42%probability of exploitation in 30 days

87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

References

Exploit1

bugs.php.net

Vendor Advisory1

php.net

Third-Party Advisory1

rhn.redhat.com

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.