How severe is CVE-2017-15924?

CVE-2017-15924 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-15924 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-15924?

CVE-2017-15924 primarily affects Shadowsocks Shadowsocks-libev. In total, 71 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-15924?

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-2017-15924 published?

CVE-2017-15924 was published on 2017-10-27 and last updated on 2026-06-17.

CVE-2017-15924

CVE-2017-15924 is a high-severity vulnerability in Shadowsocks Shadowsocks-libev 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-78.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Shadowsocks Shadowsocks-libev
Published: 2017-10-27
Last modified: 2026-06-17

Description

In manager.c in ss-manager in shadowsocks-libev 3.1.0, improper parsing allows command injection via shell metacharacters in a JSON configuration request received via 127.0.0.1 UDP traffic, related to the add_server, build_config, and construct_command_line functions.

Frequently asked questions

What is CVE-2017-15924?: In manager.c in ss-manager in shadowsocks-libev 3.1.0, improper parsing allows command injection via shell metacharacters in a JSON configuration request received via 127.0.0.1 UDP traffic, related to the add_server, build_config, and construct_command_line functions.
How severe is CVE-2017-15924?: CVE-2017-15924 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-15924 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-15924?: CVE-2017-15924 primarily affects Shadowsocks Shadowsocks-libev. In total, 71 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-15924?: 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-2017-15924 published?: CVE-2017-15924 was published on 2017-10-27 and last updated on 2026-06-17.

References

Affected products (71)

cpe:2.3:a:shadowsocks:shadowsocks-libev:1.3:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:1.3.2:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:1.4.1:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:1.4.2:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:1.4.3:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:1.4.4:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:1.4.5:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:1.4.6:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:1.4.7:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:1.4.8:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:1.5.0:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:1.5.1:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:1.5.2:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:1.5.3:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:1.6.1:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:1.6.2:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:1.6.3:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:1.6.4:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:2.0.3:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:2.0.4:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:2.0.5:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:2.0.6:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:2.0.7:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:2.0.8:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:2.1.0:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:2.1.1:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:2.1.2:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:2.1.3:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:2.1.4:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:2.2.0:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:2.2.1:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:2.2.2:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:2.2.3:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:2.3.0:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:2.3.1:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:2.3.2:*:*:*:*:*:*:*
cpe:2.3:a:shadowsocks:shadowsocks-libev:2.3.3:*:*:*:*:*:*:*

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