How severe is CVE-2017-7246?

CVE-2017-7246 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-7246 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-7246?

CVE-2017-7246 affects Pcre. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-7246?

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-2017-7246 published?

CVE-2017-7246 was published on 2017-03-23 and last updated on 2026-06-17.

CVE-2017-7246

CVE-2017-7246 is a high-severity vulnerability in Pcre with a CVSS 3.x base score of 7.8. 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-119.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Pcre
Published: 2017-03-23
Last modified: 2026-06-17

Description

Stack-based buffer overflow in the pcre32_copy_substring function in pcre_get.c in libpcre1 in PCRE 8.40 allows remote attackers to cause a denial of service (WRITE of size 268) or possibly have unspecified other impact via a crafted file.

Frequently asked questions

What is CVE-2017-7246?: Stack-based buffer overflow in the pcre32_copy_substring function in pcre_get.c in libpcre1 in PCRE 8.40 allows remote attackers to cause a denial of service (WRITE of size 268) or possibly have unspecified other impact via a crafted file.
How severe is CVE-2017-7246?: CVE-2017-7246 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-7246 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-7246?: CVE-2017-7246 affects Pcre. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-7246?: 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-2017-7246 published?: CVE-2017-7246 was published on 2017-03-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:pcre:pcre:8.40:*:*:*:*:*:*:*

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