CVE-2017-9118

Exp

PHP 7.1.5 has an Out of bounds access in php_pcre_replace_impl via a crafted preg_replace call.

Published: 2018-08-02 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-9118 is rated High Exploit Risk (77.5/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.95%). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +2.62% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2017-9118

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2017-9118

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.34% 2.95% +2.62%
2 2026-04-13 0.44% 0.34% -0.10%
3 2026-01-14 — 0.44% —

Full EPSS history (18 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-9118

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2017-9118

OS Trackers for CVE-2017-9118

vendor priority summary link
redhat medium — https://access.redhat.com/security/cve/CVE-2017-9118
suse medium CVE-2017-9118 severity moderate: SUSE including 262 source package names (apache2-mod_php5-5.2.14-0.7.30.111.35.1, apache2-mod_php5-5.5.14-109.38.1, …), 656 product×package rows across 18 product lines (SUSE Enterprise Storage 7.1, SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS, … (18 product lines)): Known Not Affected 358, Fixed 298. https://www.suse.com/security/cve/CVE-2017-9118/
ubuntu medium CVE-2017-9118 medium priority: Ubuntu including 6 source packages (php5, php7.0, php7.2, php7.4, php8.0, php8.1), 99 status rows across 19 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 83, released 7, needs-triage 5, ignored 2, needed 2. https://ubuntu.com/security/CVE-2017-9118

Affected software / configurations for CVE-2017-9118

Vendor Product Version Raw CPE
php php >= 7.4.0, < 7.4.27 cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
php php >= 8.0.0, < 8.0.14 cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
php php >= 8.1.0, < 8.1.1 cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
php php 7.1.5 cpe:2.3:a:php:php:7.1.5:*:*:*:*:*:*:*
netapp storage_automation_store — cpe:2.3:a:netapp:storage_automation_store:-:*:*:*:*:*:*:*

References for CVE-2017-9118

URL Tags
https://access.redhat.com/errata/RHSA-2019:2519 Third Party Advisory
https://bugs.php.net/bug.php?id=74604 Exploit Issue Tracking Vendor Advisory
https://security.netapp.com/advisory/ntap-20181107-0003/ Third Party Advisory
cvelogic Threat Intelligence