How severe is CVE-2015-2328?

CVE-2015-2328 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2015-2328 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-2328?

CVE-2015-2328 primarily affects Pcre. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-2328?

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-2015-2328 published?

CVE-2015-2328 was published on 2015-12-02 and last updated on 2026-06-17.

CVE-2015-2328

CVE-2015-2328 is a high-severity vulnerability in Pcre with a CVSS 2.0 base score of 7.5. 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-19.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-19
Affected product: Pcre
Published: 2015-12-02
Last modified: 2026-06-17

Description

PCRE before 8.36 mishandles the /((?(R)a|(?1)))+/ pattern and related patterns with certain recursion, which allows remote attackers to cause a denial of service (segmentation fault) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.

Frequently asked questions

What is CVE-2015-2328?: PCRE before 8.36 mishandles the /((?(R)a|(?1)))+/ pattern and related patterns with certain recursion, which allows remote attackers to cause a denial of service (segmentation fault) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.
How severe is CVE-2015-2328?: CVE-2015-2328 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2015-2328 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-2328?: CVE-2015-2328 primarily affects Pcre. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-2328?: 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-2015-2328 published?: CVE-2015-2328 was published on 2015-12-02 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*
cpe:2.3:a:pcre:pcre:*:*:*:*:*:*:*:*

More vulnerabilities in Pcre

CVE-2015-3210 — Critical (CVSS 9.8): Heap-based buffer overflow in PCRE 8.34 through 8.37 and PCRE2 10.10 allows remote attackers to execute arbitrary code…
CVE-2016-3191 — Critical (CVSS 9.8): The compile_branch function in pcre_compile.c in PCRE 8.x before 8.39 and pcre2_compile.c in PCRE2 before 10.22…
CVE-2016-1283 — Critical (CVSS 9.8): The pcre_compile2 function in pcre_compile.c in PCRE 8.38 mishandles the…
CVE-2015-8391 — Critical (CVSS 9.8): The pcre_compile function in pcre_compile.c in PCRE before 8.38 mishandles certain [: nesting, which allows remote…
CVE-2015-5073 — Critical (CVSS 9.1): Heap-based buffer overflow in the find_fixedlength function in pcre_compile.c in PCRE before 8.38 allows remote…
CVE-2015-2325 — High (CVSS 7.8): The compile_branch function in PCRE before 8.37 allows context-dependent attackers to compile incorrect code, cause a…

All CVEs affecting Pcre →

Other CWE-19 vulnerabilities

CVE-2015-2373 — Critical (CVSS 10.0): The Remote Desktop Protocol (RDP) server service in Microsoft Windows 7 SP1, Windows 8, and Windows Server 2012 allows…
CVE-2014-8822 — Critical (CVSS 10.0): IOHIDFamily in Apple OS X before 10.10.2 allows attackers to execute arbitrary code in a kernel context or cause a…
CVE-2014-8817 — Critical (CVSS 10.0): coresymbolicationd in CoreSymbolication in Apple OS X before 10.10.2 does not verify that expected data types are…
CVE-2014-4488 — Critical (CVSS 10.0): IOHIDFamily in Apple iOS before 8.1.3, Apple OS X before 10.10.2, and Apple TV before 7.0.3 does not properly validate…
CVE-2014-7247 — Critical (CVSS 10.0): Unspecified vulnerability in JustSystems Ichitaro 2008 through 2011; Ichitaro Government 6, 7, 2008, 2009, and 2010;…
CVE-1999-0226 — Critical (CVSS 10.0): Windows NT TCP/IP processes fragmented IP packets improperly, causing a denial of service.

Browse all CWE-19 vulnerabilities →