CVE-2015-8393

Perl Compatible Regular Expression Library vulnerability

CVSS

7.5

EPSS

4.4%

EPSS pct

90th

Exploited

No known

pcregrep in PCRE before 8.38 mishandles the -q option for binary files, which might allow remote attackers to obtain sensitive information via a crafted file, as demonstrated by a CGI script that sends stdout data to a client.

Affected vendor

Pcre

Affected product

Perl Compatible Regular Expression Library

CVSS vector

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

Weakness type (CWE)

CWE-200 — Exposure of Sensitive Information

Published

2015-12-02

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 4.4% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 90% of all scored CVEs.

Check your external exposure to CVE-2015-8393

Confirm whether Pcre Perl Compatible Regular Expression Library is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2015-8393.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2015-8393

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2015-8393 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2015-8393?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2015-8393.

Start free scan

No credit card. Agentless.

Related vulnerabilities

HIGH

CVE-2025-7945

CVE-2025-7945 vulnerability

HIGH

CVE-2025-34143

CVE-2025-34143 vulnerability

HIGH

CVE-2025-8017

Ac7 Firmware vulnerability